Datasheet TK71654SIL, TK71654SCLH, TK71654SCL, TK71654ASCLH, TK71654ASIL Datasheet (TOKO)

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Datasheet TK71654SIL, TK71654SCLH, TK71654SCL, TK71654ASCLH, TK71654ASIL, TK71654ASCL, TK71653SIL, TK71653SCLH, TK71653SCL, TK71653ASIL, TK71653ASCLH, TK71653ASCL, TK71652SIL, TK71652SCLH, TK71652SCL, TK71648ASCL, TK71647SIL, TK71647SCLH, TK71647ASIL, TK71647SCL, TK71647ASCLH, TK71647ASCL, TK71646SIL, TK71646SCLH, TK71650SCLH, TK71650SCL, TK71650ASIL, TK71650ASCL, TK71650ASCLH, TK71649SIL, TK71649SCLH, TK71649SCL, TK71649ASIL, TK71649ASCLH, TK71649ASCL, TK71648SIL, TK71648SCLH, TK71648SCL, TK71648ASIL, TK71648ASCLH, TK71646SCL, TK71646ASIL, TK71646ASCLH, TK71646ASCL, TK71645SIL, TK71645SCLH, TK71645SCL, TK71645ASIL, TK71645ASCLH, TK71652ASCLH, TK71652ASIL, TK71652ASCL, TK71651SIL, TK71651SCL, TK71651SCLH, TK71651ASIL, TK71651ASCLH, TK71651ASCL, TK71650SIL, TK71635SIL, TK71635SCLH, TK71635SCL, TK71635ASIL, TK71635ASCL, TK71635ASCLH, TK71634SIL, TK71634SCLH, TK71642ASCLH, TK71642ASIL, TK71642ASCL, TK71641SIL, TK71641SCLH, TK71641SCL, TK71641ASCLH, TK71641ASIL, TK71641ASCL, TK71640SIL, TK71645ASCL, TK71644SIL, TK71644SCL, TK71644SCLH, TK71644ASIL, TK71644ASCLH, TK71644ASCL, TK71640SCLH, TK71640SCL, TK71640ASIL, TK71640ASCLH, TK71640ASCL, TK71639SIL, TK71639SCLH, TK71639ASIL, TK71639SCL, TK71633ASCLH, TK71633ASCL, TK71632SIL, TK71632SCLH, TK71632SCL, TK71632ASIL, TK71632ASCLH, TK71632ASCL, TK71634SCL, TK71634ASIL, TK71634ASCLH, TK71634ASCL, TK71633SIL, TK71633SCLH, TK71633SCL, TK71633ASIL, TK71637SCL, TK71637ASIL, TK71637ASCL, TK71637ASCLH, TK71636SIL, TK71636SCLH, TK71636SCL, TK71636ASIL, TK71636ASCLH, TK71636ASCL, TK71631SIL, TK71631SCLH, TK71631SCL, TK71631ASIL, TK71631ASCLH, TK71631ASCL, TK71630SIL, TK71630SCLH, TK71630SCL, TK71643SIL, TK71643SCLH, TK71643SCL, TK71643ASIL, TK71643ASCLH, TK71643ASCL, TK71642SIL, TK71642SCLH, TK71642SCL, TK71639ASCLH, TK71639ASCL, TK71638SIL, TK71638SCLH, TK71638ASCLH, TK71638SCL, TK71638ASCL, TK71637SIL, TK71637SCLH, TK71619SIL, TK71620ASCL, TK71619SCLH, TK71619SCL, TK71619ASCLH, TK71619ASIL, TK71619ASCL, TK71618SIL, TK71618SCLH, TK71630ASIL, TK71630ASCLH, TK71630ASCL, TK71629SIL, TK71629SCL, TK71629SCLH, TK71629ASIL, TK71629ASCLH, TK71629ASCL, TK71628SCLH, TK71628SIL, TK71628SCL, TK71628ASIL, TK71628ASCLH, TK71617ASIL, TK71628ASCL, TK71617ASCLH, TK71617ASCL, TK71616SIL, TK71616SCLH, TK71616SCL, TK71616ASIL, TK71616ASCLH, TK71615SIL, TK71616ASCL, TK71621SCLH, TK71621ASIL, TK71621SCL, TK71621ASCLH, TK71621ASCL, TK71620SIL, TK71620SCLH, TK71620SCL, TK71620ASIL, TK71620ASCLH, TK71627SCLH, TK71627SIL, TK71627SCL, TK71627ASIL, TK71627ASCLH, TK71626SIL, TK71627ASCL, TK71626SCLH, TK71626SCL, TK71623ASCLH, TK71623ASCL, TK71622SIL, TK71622SCLH, TK71622ASIL, TK71622SCL, TK71622ASCLH, TK71622ASCL, TK71626ASIL, TK71621SIL, TK71626ASCLH, TK71626ASCL, TK71625SIL, TK71625SCLH, TK71625SCL, TK71625ASIL, TK71625ASCLH, TK71625ASCL, TK71624SIL, TK71618SCL, TK71618ASCLH, TK71618ASIL, TK71618ASCL, TK71617SIL, TK71617SCL, TK71617SCLH, TK71624SCLH, TK71624SCL, TK71624ASIL, TK71624ASCLH, TK71624ASCL, TK71623SIL, TK71623SCL, TK71623SCLH, TK71623ASIL, TK71615SCLH, TK71615SCL, TK71615ASIL, TK71615ASCLH, TK71615ASCL, TK71614SIL, TK71614SCLH, TK71614SCL, TK71614ASIL, TK71614ASCLH, TK71614ASCL, TK71613SIL, TK71613SCLH, TK71613ASIL, TK71613SCL, TK71613ASCLH, TK71613ASCL Datasheet (TOKO)

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Page 1

TK716xx

20P

LOW DROPOUT VOLTAGE REGULATOR

FEATURES

■ Available in ± 2.0 % or ± 1.0 % Output Tolerance

■ Active High On/Off Control

■ Very Low Quiescent Current

■ Very Low Dropout Voltage

■ Reverse Bias Protection

■ Miniature Package (SOT23-5)

■ Short Circuit Switch

■ High Ripple Rejection

■ Very High Output Impedance (Output Off)

■ Very Low Noise

DESCRIPTION

The TK716xx is a low dropout linear regulator housed in a small SOT23-5 package, rated at 500 mW. The phase compensation in the IC has been optimized to allow the use of ceramic or tantalum output capacitors. The device is in the “on” state when the control pin is pulled to a logic high level. An internal PNP pass transistor is used to achieve a low dropout voltage of 90 mV (typ.) at 50 mA load current. This device offers high precision output voltage of ± 2.0 % or ± 1.0 %. The low quiescent current and dropout voltage make this part ideal for battery powered applications. This part incorporates an output disconnect feature to reduce the reverse bias current in the “off” state to less than 50 nA.

APPLICATIONS

■ Battery Powered Systems

■ Cellular Telephones

■ Pagers

■ Personal Communications Equipment

■ Portable Instrumentation

■ Portable Consumer Equipment

■ Radio Control Systems

■ Toys

■ Low Voltage Systems

The internal reverse bias protection eliminates the requirement for a reverse voltage protection diode, saving cost and board space. The high 60 dB ripple rejection (400 Hz) and low noise provide enhanced performance for critical applications. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 µVrms.

TK716xx

GND

OUT

ORDERING INFORMATION

CONTROL

NOISE

BYPASS

TK716 SCL TK716 SIL TK716 SCL H

Voltage Code

Capacitor Code

VOLTAGE CODE*

13 = 1.3 V 14 = 1.4 V 15 = 1.5 V 16 = 1.6 V 17 = 1.7 V 18 = 1.8 V 19 = 1.9 V 20 = 2.0 V 21 = 2.1 V 22 = 2.2 V 23 = 2.3 V 24 = 2.4 V 25 = 2.5 V 26 = 2.6 V

*Check Table 4 for availability.

27 = 2.7 V 28 = 2.8 V 29 = 2.9 V 30 = 3.0 V 31 = 3.1 V 32 = 3.2 V 33 = 3.3 V 34 = 3.4 V 35 = 3.5 V 36 = 3.6 V 37 = 3.7 V 38 = 3.8 V 39 = 3.9 V 40 = 4.0 V

41 = 4.1 V 42 = 4.2 V 43 = 4.3 V 44 = 4.4 V 45 = 4.5 V 46 = 4.6 V 47 = 4.7 V 48 = 4.8 V 49 = 4.9 V 50 = 5.0 V 51 = 5.1 V 52 = 5.2 V 53 = 5.3 V 54 = 5.4 V

TAPE/REEL CODE

L: Tape Left

TEMPERATURE CODE

C: Standard Temp. Range I: Extended Temp. Range

PACKAGE CODE

S: SOT23-5

TOLERANCE CODE

H: 1 % Output Voltage Tolerance (Not available in I temp code)

CAPACITOR CODE

None: Ceramic Capacitor A: Tantalum Capacitor

December 1999 TOKO, Inc. Page 1

Tolerance Code Tape/Reel Code Temp. CodePackage Code

CONTROL

BLOCK DIAGRAM

CONTROL

CIRCUIT

CONSTANT

CURRENT

SOURCE

THERMAL AND

OVERCURRENT

PROTECTION

BANDGAP

REFERENCE

GND

NOISE

BYPASS

DISCONNECT

CIRCUIT

OUT

Page 2

TK716xx

ABSOLUTE MAXIMUM RATINGS

Supply Voltage ......................................................... 16 V

Power Dissipation (Note 1) ................................ 500 mW

Reverse Bias Voltage................................................. 6 V

Control Terminal Voltage ......................................... 12 V

Noise Bypass Terminal Voltage ................................. 5 V

Operating Voltage Range............................... 1.8 to 12 V

Storage Temperature Range ................... -55 to +150 °C

TK716xx SCL AND TK716xx SCLH ELECTRICAL CHARACTERISTICS

Test conditions: VIN = V

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

OUT(TYP)

+ 1 V, TA = 25 °C, unless otherwise specified.

Operating Temperature (Ambient) Range

TK716xx SCL, TK716xx SCLH ............ -30 to +80 °C

TK716xx SIL.......................................... -40 to +85 °C

Junction Temperature (Operating) ........................ 125 °C

Junction Temperature (Shutdown)........................ 150 °C

Lead Soldering Temperature (10 s) ......................235 °C

I I I I I

V ∆V

tnerruCtnecseiuQI

YBTS

VER

DNG

TUO

)ESLUP(TUO

TUO

/∆T

TUO

tnerruCybdnatSV

tnerruCsaiBesreveRV

tnerruCniPDNGI

tnerruCtuptuOsuounitnoC 051Am

tnerruCtuptuOesluP%04=elcyCytuD,eslupsm01002Am

egatloVtuptuOV

erutarepmeTtneiciffeoC02C°/mpp

geReniLnoitalugeReniLV

geRdaoLnoitalugeRdaoL

PORD

egatloVtuoporD

TUO

I I

,V8=V(FFOtuptuO ,V0=V

VER

TUO

Am05=18.1Am

)PYT(TUO

I<Am1

TUO

I<Am1

TUO

I<Am1

TUO

Am05=09061Vm

Am001=041032Vm

Am051=

lanimreTssapyBesioN

fer

egatloV

IgnidulcxE,Am0=

TNOC

≤ )V51.01.0Aµ

TNOC

07001Aµ

FFOtuptuO,V5=105An

,V1+I

TUO

VotV1+

Am5=2dna1elbaTeeSV

V6+251Vm

)PYT(TUO

Am05<481Vm

Am001<782Vm Am051<2105Vm

≥ V4.2002003Vm

TUO

V4.2<002053Vm

62.1V

SNOITACIFICEPSLANIMRETLORTNOC

TNOC

V V

Note 1: Power dissipation is 500 mW when mounted as recommended. Derate at 4.0 mW/°C for operation above 25 °C. Gen Note: Exceeding the “Absolute Maximum Ratings” may damage the device. Gen Note: Parameters with min. or max. values are 100% tested at TA = 25 °C. Gen Note: Ripple rejection is @ 60 dB when f = 400 Hz, C Gen Note: Output noise is 0.13 ~ 0.23 µV/ Hz at 1 kHz when CN = 0.1 µF.

)NO(TNOC

)FFO(TNOC

tnerruClortnoCV

TUO

,V6.1=NOtuptuO01Aµ

NOegatloVlortnoCNOtuptuO6.1V

FFOegatloVlortnoCFFOtuptuO6.0V

= 10 µF, CN = 0.1 µF, input noise = 100 mVrms, VIN = V

OUT(TYP)

+ 1.5 V and I

= 30 mA.

OUT

Page 2 December 1999 TOKO, Inc.

Page 3

TK716xx SCL ELECTRICAL CHARACTERISTICS TABLE 1

Test Conditions: VIN = V

OUT(TYP)

+ 1 V, I

= 5 mA, TA = 25 °C, unless otherwise specified.

OUT

TK716xx

Output Voltage V

Voltage Code

OUT(MIN)

OUT(MAX)

1.3 V 13 1.240 V 1.360 V

1.4 V 14 1.340 V 1.460 V

1.5 V 15 1.440 V 1.560 V

1.6 V 16 1.540 V 1.660 V

1.7 V 17 1.650 V 1.760 V

1.8 V 18 1.740 V 1.860 V

1.9 V 19 1.870 V 1.960 V

2.0 V 20 1.940 V 2.060 V

2.1 V 21 2.040 V 2.160 V

2.2 V 22 2.140 V 2.260 V

2.3 V 23 2.240 V 2.360 V

2.4 V 24 2.340 V 2.460 V

2.5 V 25 2.440 V 2.560 V

2.6 V 26 2.540 V 2.660 V

2.7 V 27 2.640 V 2.760 V

2.8 V 28 2.740 V 2.860 V

2.9 V 29 2.840 V 2.960 V

3.0 V 30 2.940 V 3.060 V

3.1 V 31 3.038 V 3.162 V

3.2 V 32 3.136 V 3.264 V

3.3 V 33 3.234 V 3.366 V

Output Voltage V

Voltage Code

OUT(MIN)

OUT(MAX)

3.4 V 34 3.232 V 3.468 V

3.5 V 35 3.430 V 3.570 V

3.6 V 36 3.528 V 3.672 V

3.7 V 37 3.626 V 3.774 V

3.8 V 38 3.724 V 3.876 V

3.9 V 39 3.822 V 3.978 V

4.0 V 40 3.920 V 4.080 V

4.1 V 41 4.018 V 4.182 V

4.2 V 42 4.116 V 4.284 V

4.3 V 43 4.214 V 4.386 V

4.4 V 44 4.312 V 4.488 V

4.5 V 45 4.410 V 4.590 V

4.6 V 46 4.508 V 4.692 V

4.7 V 47 4.606 V 4.794 V

4.8 V 48 4.704 V 4.896 V

4.9 V 49 4.802 V 5.008 V

5.0 V 50 4.900 V 5.100 V

5.1 V 51 4.998 V 5.202 V

5.2 V 52 5.096 V 5.304 V

5.3 V 53 5.194 V 5.406 V

5.4 V 54 5.292 V 5.508 V

TK716xx SCLH ELECTRICAL CHARACTERISTICS TABLE 2

Test Conditions: VIN = V

Output Voltage V

Voltage Code

2.0 V 20 1.960 V 2.040 V

2.1 V 21 2.060 V 2.140 V

2.2 V 22 2.160 V 2.240 V

2.3 V 23 2.260 V 2.340 V

2.4 V 24 2.360 V 2.440 V

2.5 V 25 2.460 V 2.540 V

2.6 V 26 2.560 V 2.640 V

2.7 V 27 2.660 V 2.740 V

2.8 V 28 2.760 V 2.840 V

2.9 V 29 2.860 V 2.940 V

3.0 V 30 2.960 V 3.040 V

3.1 V 31 3.060 V 3.140 V

3.2 V 32 3.160 V 3.240 V

3.3 V 33 3.260 V 3.340 V

3.4 V 34 3.360 V 3.440 V

3.5 V 35 3.460 V 3.540 V

3.6 V 36 3.560 V 3.640 V

3.7 V 37 3.660 V 3.740 V

OUT(TYP)

+ 1 V, I

OUT(MIN)

= 5 mA, TA = 25 °C, unless otherwise specified.

OUT

OUT(MAX)

Output Voltage V

Voltage Code

3.8 V 38 3.760 V 3.840 V

3.9 V 39 3.860 V 3.940 V

4.0 V 40 3.960 V 4.040 V

4.1 V 41 4.059 V 4.141 V

4.2 V 42 4.158 V 4.242 V

4.3 V 43 4.247 V 4.343 V

4.4 V 44 4.356 V 4.444 V

4.5 V 45 4.455 V 4.545 V

4.6 V 46 4.554 V 4.646 V

4.7 V 47 4.653 V 4.747 V

4.8 V 48 4.752 V 4.848 V

4.9 V 49 4.851 V 4.949 V

5.0 V 50 4.950 V 5.050 V

5.1 V 51 5.049 V 5.151 V

5.2 V 52 5.148 V 5.252 V

5.3 V 53 5.247 V 5.353 V

5.4 V 54 5.346 V 5.454 V

OUT(MIN)

OUT(MAX)

December 1999 TOKO, Inc. Page 3

Page 4

TK716xx

TK716xx SIL ELECTRICAL CHARACTERISTICS

Test conditions: VIN = V

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

OUT(TYP)

+ 1 V, TA = 25 °C, unless otherwise specified.

I I I I I

V ∆V

tnerruCtnecseiuQI

YBTS

VER

DNG

TUO

)ESLUP(TUO

TUO

/∆T

TUO

tnerruCybdnatSV

tnerruCsaiBesreveRV

tnerruCniPDNGI

tnerruCtuptuOsuounitnoC 051Am

tnerruCtuptuOesluP%04=elcyCytuD,eslupsm01002Am

egatloVtuptuOV

erutarepmeTtneiciffeoC02C°/mpp

geReniLnoitalugeReniL

geRdaoLnoitalugeRdaoL

PORD

fer

egatloVtuoporD

TUO

I I I

,V8=FFOtuptuO2.0Aµ ,V0=V

VER

TUO

Am05=10.2Am

)PYT(TUO

V6+

)PYT(TUO

I<Am1

TUO

I<Am1

TUO

Am05=09061Vm

Am001=051042Vm Am051=002013Vm

egatloVlanimreTssapyBesioN 62.1V

IgnidulcxE,Am0=

TNOC

07001Aµ

FFOtuptuO,V5=107An

,V1+I

TUO

otV1+

Am5=3elbaTeeSV

271Vm

Am05<402Vm

Am001<703Vm

SNOITACIFICEPSLANIMRETLORTNOC

TNOC

V V

Gen Note: Exceeding the “Absolute Maximum Ratings” may damage the device. Gen Note: Parameters with min. or max. values are 100% tested at TA = 25 °C. Gen Note: Ripple rejection is @ 60 dB when f = 400 Hz, C Gen Note: Output noise is 0.13 ~ 0.23 µV/ Hz at 1 kHz when CN = 0.1 µF.

)NO(TNOC

)FFO(TNOC

tnerruClortnoCV

TUO

,V6.1=NOtuptuO01Aµ

NOegatloVlortnoCNOtuptuO8.1V

FFOegatloVlortnoCFFOtuptuO4.0V

= 10 µF, CN = 0.1 µF, input noise = 100 mVrms, VIN = V

OUT(TYP)

+ 1.5 V and I

= 30 mA.

OUT

Page 4 December 1999 TOKO, Inc.

Page 5

TK716xx

TK716xx SIL ELECTRICAL CHARACTERISTICS TABLE 3

Test Conditions: VIN = V

Room Temp. Range (TA = 25 °C) Full Temp. Range (TA = -40 to +85 °C)

Output Voltage V

Voltage Code

2.4 V 24 2.360 V 2.440 V 2.320 V 2.480 V

2.5 V 25 2.460 V 2.540 V 2.420 V 2.580 V

2.6 V 26 2.560 V 2.640 V 2.520 V 2.680 V

2.7 V 27 2.660 V 2.740 V 2.620 V 2.780 V

2.8 V 28 2.760 V 2.840 V 2.720 V 2.880 V

2.9 V 29 2.860 V 2.940 V 2.820 V 2.980 V

3.0 V 30 2.960 V 3.040 V 3.920 V 3.080 V

3.1 V 31 3.060 V 3.140 V 3.020 V 3.180 V

3.2 V 32 3.160 V 3.240 V 3.120 V 3.280 V

3.3 V 33 3.260 V 3.340 V 3.220 V 3.380 V

3.4 V 34 3.360 V 3.440 V 3.320 V 3.480 V

3.5 V 35 3.460 V 3.540 V 3.420 V 3.580 V

3.6 V 36 3.560 V 3.640 V 3.520 V 3.680 V

3.7 V 37 3.660 V 3.740 V 3.620 V 3.780 V

3.8 V 38 3.760 V 3.840 V 3.720 V 3.880 V

3.9 V 39 3.860 V 3.940 V 3.820 V 3.980 V

4.0 V 40 3.960 V 4.040 V 3.920 V 4.090 V

4.1 V 41 4.059 V 4.141 V 4.009 V 4.191 V

4.2 V 42 4.158 V 4.242 V 4.108 V 4.292 V

4.3 V 43 4.257 V 4.343 V 4.197 V 4.893 V

4.4 V 44 4.356 V 4.444 V 4.306 V 4.494 V

4.5 V 45 4.455 V 4.545 V 4.405 V 4.595 V

4.6 V 46 4.554 V 4.646 V 4.504 V 4.496 V

4.7 V 47 4.653 V 4.747 V 4.603 V 4.497 V

4.8 V 48 4.752 V 4.848 V 4.702 V 4.898 V

4.9 V 49 4.851 V 5.049 V 4.801 V 5.099 V

5.0 V 50 4.950 V 5.050 V 4.900 V 5.100 V

OUT(TYP)

+ 1 V, I

= 5 mA, TA = 25 °C, unless otherwise specified.

OUT

OUT(MIN)

OUT(MAX)

OUT(MIN)

OUT(MAX)

December 1999 TOKO, Inc. Page 5

Page 6

TK716xx

VOLTAGE AVAILABILITY TABLE 4

Output TK716xxSCL TK716xxASCL TK716xxSCLH TK716ASCLH TK716xxSIL TK716xxASIL

Voltage

1.3 V X

1.4 V X

1.5 V X X

1.6 V X

1.7 V X

1.8 V X X

1.9 V X

2.0 V X X X X

2.1 V X X X X

2.2 V X X X X

2.3 V X X

2.4 V X X X X X X

2.5 V X X X X X X

2.6 V X X X

2.7 V X X X X X X

2.8 V X X X X X X

2.9 V X X X X X X

3.0 V X X X X X X

3.1 V X X X X X X

3.2 V X X X X X X

3.3 V X X X X X X

3.4 V X X X

3.5 V X X X X X X

3.6 V X X X X X X

3.7 V X X X

3.8 V X X X X X X

3.9 V X X X

4.0 V X X X

4.1 V X X X X X X

4.2 V X X X X X X

4.3 V X X X

4.4 V X X X

4.5 V X X X X X X

4.6 V X X X

4.7 V X X X X X X

4.8 V X X X X X X

4.9 V X X X X X X

5.0 V X X X X X X

5.1 V X X

5.2 V X X

5.3 V X X

5.4 V X X

Note: X denotes voltage presently available. Consult factory for availability of other voltages.

Page 6 December 1999 TOKO, Inc.

Page 7

TK716xx

(

(V)

(50

DIV)

(

OUT

(20 mV/ DIV)

OUTPUT VOLTAGE VS.

INPUT VOLTAGE

(50 MV/DIV)

0 VIN = V

OUT

TYPICAL

OUT

= 150 mA

OUT

= 0 mA

OUT

= 25 mA

OUT

is changed

by 25 mA step.

TEST CIRCUIT

CIN = 1.0 µF

OUT

(5 mV/ DIV)

OUT

TYPICAL PERFORMANCE CHARACTERISTICS

LOAD REGULATION

TYPICAL

OUT

CONT

OUT

GND

CONT

SHORT CIRCUIT PROTECTION

CL = 3.3 µF

NOISE BYPASS

N = 0.01 µF

December 1999 TOKO, Inc. Page 7

0 50 100 150

(mA)

OUT

LINE REGULATION

TYPICAL

OUT

0 10 20

VIN (V)

0 150 300

(mA)

OUT

DROPOUT VOLTAGE

OUTPUT CURRENT

-50

-100

DROP

-150

-200

-250 0 100 200

(mA)

OUT

VS.

REVERSE LEAKAGE CURRENT

TEMPERATURE

VIN, V

CONT FLOATING

= 5 V SOURCE

OUT

LEAK

0 25 50 75 100

TA (°C)

VS.

Page 8

TK716xx

(

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

REVERSE BIAS CURRENT

IE-3

IE-6

IE-9

REV (A)

IE-12

0 5 10

IE-7

IE-8

(A)

IE-9

STBY

IE-10

IE-11

= 0 V)

(V)

REV

STANDBY CURRENT

INPUT VOLTAGE

VS.

REVERSE BIAS CURRENT

TEMPERATURE (V

IE-3

IE-6

REV (A)

IE-9

IE-12

0 25 50 75 100

TA (°C)

QUIESCENT CURRENT (ON MODE)

VS.

INPUT VOLTAGE

= 3 V

OUT

= 4 V

(mA)

2.0

1.0

OUT

= 0 V)

= 0 mA

= 5 V

VS.

IE-12

0 10 20

(V)

CONTROL CURRENT (ON MODE)

VS.

CONTROL PIN VOLTAGE

(V)

OUT

= 0 mA

5.0

(µA)

2.5

CONT

0 2.5 5

OUT

CONT

0 10 20

(V)

GROUND CURRENT

GND

-50 0 50 100

OUT

= 90 mA

= 60 mA

= 30 mA

TA (°C)

Page 8 December 1999 TOKO, Inc.

Page 9

(

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

TK716xx

DROPOUT VOLTAGE

= 150 mA

OUT

200

150

DROP

100

-50 0 50 100

MAXIMUM OUTPUT CURRENT

340

320

300

OUT

280

OUT

TA (°C)

= 90 mA

= 60 mA

= 30 mA

= 1mA

CONTROL CURRENT

CONT

-50 0 50 100

OUTPUT VOLTAGE TEMPERATURE

(ppm) / ∆T

-10

OUT

∆V

-20

COEFFICIENT

CONT

TA (°C)

OUT

= 3.3 V

= 1.8 V

= 3 V

260

-50 0 50 100 TA (°C)

RIPPLE REJECTION

=30 mA

-20

-40

RR (dB)

-60

-80

-100

OUT

CL = 3.3 µF

CN = 0.01 µF

CL = 3.3 µF

CN = 0.1 µF

0.01 0.1 1 10 100 f (kHz)

-30

-50 0 50 100 TA (°C)

)

1.0

0.1

NOISE (µV/ H

OUTPUT NOISE DENSITY

= 30 mA

OUT

CL = 2.2 µF

CNP = 0.001 µF

CNP = 0.01 µF

CNP = 0.1 µF

100 I K 10 K 100 K

f (Hz)

December 1999 TOKO, Inc. Page 9

Page 10

TK716xx

NOISE

(

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

NOISE LEVEL VS. C

CL = 2.2 µF

250

CL = 3.3 µF

200

150

CL = 10 µF

100

1 pF

OUTPUT VOLTAGE RESPONSE 2

CONT

100 pF

10 pF

LOAD

(OFF ~ ON)

= 30 mA, CL = 3.3 µF

1000 pF

0.01 µF

CN = 1000 pF

CN = 0.1 µF

0.1 µF

OUTPUT VOLTAGE RESPONSE 1

LOAD

CONT

OUT

0 20 40 60 80

LINE VOLTAGE STEP RESPONSE 1

OUT

(OFF ~ ON)

= 10 mA, CN = 1000 pF

CL = 2.2 µF

CL = 3.3 µF

CL = 10 µF

TIME (µs)

+2 V

OUT

CN = 0.001 µF, CL = 2.2 µF

CL = 4.7 µF

OUT

+1 V

CN = 0.01 µF

OUT

0 200 400 600 800

TIME (µs)

LINE VOLTAGE STEP RESPONSE 2

+2 V

OUT

OUT (10 mV/ DIV)

OUT

CN = 0.01 µF, CL = 3.3 µF

CN = 0.01 µF, CL = 10 µF

TIME (50 µs/ DIV)

OUT

+1 V

OUT (10 mV/ DIV)

OUT

LOAD CURRENT STEP RESPONSE 1

OUT

OUT (20 mV/ DIV)

CN = 0.01 µF, CL = 2.2 µF

TIME (50 µs/ DIV)

CN = 0.01 µF, CL = 2.2 µF

= 30 to 60 mA

OUT

TIME (2.5 µs/ DIV)

OUT

= 0 to 30 mA

= 5 to 35 mA

Page 10 December 1999 TOKO, Inc.

Page 11

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

DIV)

TK716xx

LOAD CURRENT STEP RESPONSE 2

CN = 0.01 µF, CL = 2.2 µF

OUT

= 35 to 5 mA

OUT

= 60 to 30 mA

OUT (20 mV/ DIV)

OUT

SHORT CIRCUIT CURRENT VS.

400

300

(mA)

200

OUT

100

0 2 4 6 8

OUT

= 30 to 0 mA

OUT

TIME (2.5 µs/ DIV)

INPUT VOLTAGE

IS CONNECTED TO GND

OUT

(V)

CONTROL VOLTAGE

TEMPERATURE

2.0

1.5

(V)

1.0

CONT

0.5

0 25 50 75 100

CONTROL CURRENT VS.

5.0

4.0

3.0

(µA)

2.0

CONT

1.0

0 25 50 75 100

OUTPUT ON

OUTPUT OFF

TA (°C)

TEMPERATURE

= 5.0 V

CONT

TA (°C)

VS.

= 2.0 V

GROUND CURRENT VS.

(mA)

GND

0 0.9 40 50 120 160 200

OUTPUT CURRENT

(mA)

OUT

DROPOUT CHARACTERISTICS

OUT

= 0 mA

OUT

= 80 mA

OUT

= V

OUT

(1 V/ DIV)

December 1999 TOKO, Inc. Page 11

Page 12

TK716xx

(

TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)

GROUND CURRENT

SUPPLY VOLTAGE (V

(mA)

GND

0 1 2 3 4 5

INSTANTANEOUS SHORT CIRCUIT

CURRENT

400

300

200

= 50 mA

OUT

= 0 mA

OUT

(V)

VS.

TEMPERATURE

= V

OUT

CL = 2.2 µF TANTALUM

VS.

OUT

INPUT

= 3.6 V)

GROUND CURRENT

TEMPERATURE

= 80 mA

OUT

(mA)

GND

OUT

0 25 50 75 100

OUT

= 0 mA

= 50 mA

TA (°C)

VS.

100

0 25 50 75 100

TA (°C)

Page 12 December 1999 TOKO, Inc.

Page 13

DEFINITION AND EXPLANATION OF TECHNICAL TERMS

TK716xx

OUTPUT VOLTAGE (V

The output voltage is specified with VIN = (V and I

= 5 mA.

OUT

DROPOUT VOLTAGE (V

OUT

)

DROP

OUT(TYP)

+ 1 V)

)

The dropout voltage is the difference between the input voltage and the output voltage at which point the regulator starts to fall out of regulation. Below this value, the output voltage will fall as the input voltage is reduced. It is dependent upon the load current and the junction temperature.

CONTINUOUS OUTPUT CURRENT (I

OUT

)

Normal operating output current. This is limited by package power dissipation.

PULSE OUTPUT CURRENT (I

OUT (PULSE)

)

Maximum pulse width 10 ms; duty cycle is 40%: pulse load only.

LINE REGULATION (Line Reg)

RIPPLE REJECTION RATIO (RR)

Ripple rejection is the ability of the regulator to attenuate the ripple content of the input voltage at the output. It is specified with 100 mVrms, 400 Hz superimposed on the input voltage, where VIN = V

+ 1.5 V. The output

OUT

decoupling capacitor is set to 10 µF, the noise bypass capacitor is set to 0.1 µF, and the load current is set to 30 mA. Ripple rejection is the ratio of the ripple content of the output vs. the input and is expressed in dB.

STANDBY CURRENT (I

STBY

)

Standby current is the current which flows into the regulator when the output is turned off by the control function (V

= 0 V). It is measured with VIN = 8 V.

CONT

SENSOR CIRCUITS

Overcurrent Sensor

The overcurrent sensor protects the device if the output is shorted to ground.

Thermal Sensor

Line regulation is the ability of the regulator to maintain a constant output voltage as the input voltage changes. The line regulation is specified as the input voltage is changed from VIN = V

+ 1 V to VIN = V

OUT

+ 6 V.

LOAD REGULATION (Load Reg)

Load regulation is the ability of the regulator to maintain a constant output voltage as the load current changes. It is a pulsed measurement to minimize temperature effects with the input voltage set to VIN = V

+1 V. The load

OUT

regulation is specified under three output current step conditions of 1 mA to 50 mA, 1 mA to 100 mA and 1 mA to 150 mA.

QUIESCENT CURRENT (IQ)

The quiescent current is the current which flows through the ground terminal under no load conditions (I

GROUND CURRENT (I

GND

)

OUT

= 0 mA).

Ground Current is the current which flows through the ground pin(s). It is defined as IIN - I

, excluding control

OUT

current.

The thermal sensor protects the device if the junction temperature exceeds the safe value (Tj = 150 °C). This temperature rise can be caused by extreme heat, excessive power dissipation caused by large output voltage drops, or excessive output current. The regulator will shut off when the temperature exceeds the safe value. As the junction temperature decreases, the regulator will begin to operate again. Under sustained fault conditions, the regulator output will oscillate as the device turns off then resets. Damage may occur to the device under extreme fault conditions.

Reverse Voltage Protection

Reverse voltage protection prevents damage due to the output voltage being higher than the input voltage. This fault condition can occur when the output capacitor remains charged and the input is reduced to zero, or when an external voltage higher than the input voltage is applied to the output side.

December 1999 TOKO, Inc. Page 13

Page 14

TK716xx

(

DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)

PACKAGE POWER DISSIPATION (PD)

This is the power dissipation level at which the thermal sensor is activated. The IC contains an internal thermal sensor which monitors the junction temperature. When the junction temperature exceeds the monitor threshold of 150 °C, the IC is shut down. The junction temperature rises as the difference between the input power (VIN x IIN) and the output power (V

OUT

x I

) increases. The rate of

OUT

temperature rise is greatly affected by the mounting pad configuration on the PCB, the board material, and the ambient temperature. When the IC mounting has good thermal conductivity, the junction temperature will be low even if the power dissipation is great. When mounted on the recommended mounting pad, the power dissipation of the SOT23-5 is increased to 500 mW. For operation at ambient temperatures over 25 °C, the power dissipation of the SOT23-5 device should be derated at 4.0 mW/ °C. To determine the power dissipation for shutdown when mounted, attach the device on the actual PCB and deliberately increase the output current (or raise the input voltage) until the thermal protection circuit is activated. Calculate the power dissipation of the device by subtracting the output power from the input power. These measurements should allow for the ambient temperature of the PCB. The value obtained from PD /(150 °C - TA) is the derating factor. The PCB mounting pad should provide maximum thermal conductivity in order to maintain low device temperatures. As a general rule, the lower the temperature, the better the reliability of the device. The thermal resistance when mounted is expressed as follows:

The range of usable currents can also be found from the graph below.

(mW)

25 50 75 150

TA (°C)

Procedure:

1) Find P

2) PD1 is taken to be PD x (~0.8 - 0.9)

3) Plot PD1 against 25 °C

4) Connect P

to the point corresponding to the 150 °C

with a straight line.

5) In design, take a vertical line from the maximum operating temperature (e.g., 75 °C) to the derating curve.

6) Read off the value of PD against the point at which the vertical line intersects the derating curve. This is taken as the maximum power dissipation, DPD.

The maximum operating current is:

OUT

= (D

/ (V

IN(MAX) - VOUT

)

Tj = 0jA x PD + T

For Toko ICs, the internal limit for junction temperature is 150 °C. If the ambient temperature (TA) is 25 °C, then:

150 °C = 0jA x PD + 25 °C 0jA = 125 °C / P

PD is the value when the thermal protection circuit is activated. A simple way to determine PD is to calculate V x IIN when the output side is shorted. Input current gradually

500

MOUNTED AS

400

300

200

100

FREE AIR

0 50 100 150

SHOWN

TA (°C)

falls as temperature rises. You should use the value when thermal equilibrium is reached.

SOT23-5 POWER DISSIPATION CURVE

Page 14 December 1999 TOKO, Inc.

Page 15

TK716xx

APPLICATION INFORMATION

INPUT-OUTPUT CAPACITORS

Linear regulators require input and output capacitors in order to maintain regulator loop stability. The equivalent series resistance (ESR) of the output capacitor must be in the stable operation area. Since the ESR varies widely between ceramic and tantalum capacitors, the proper IC must be selected according to the output capacitor used:

The TK716xxS is designed for use with ceramic output capacitors.

(Chip tantalum capacitors and electrolytic capacitors with an ESR below 6 Ω can provide stable operation.)

The TK716xxAS is designed for use with tantalum output capacitors.

The DC electrical characteristics and the specifications of the TK716xxS and TK716xxAS are the same; only the value of the internal phase compensation is different. Increasing the value of the required output capacitor does not cause abnormal operation. Increasing the value can improve noise reduction, line regulation, load regulation, and stability.

For stable operation, an input capacitor of 0.22 µF or more is required. Note: it is very important to check the selected manufacturers’ electrical characteristics. The values of capacitance and

ESR vary from manufacturer to manufacturer, and with product type. A thorough examination is necessary to determine the characteristics of the capacitor in mass production. The characteristics also vary over temperature. In general, it is recommended to use as large a value of output capacitance as is practical. Please refer to the following graphs for output capacitor selection.

100

ESR (Ω)

0.1

0.01 0 50 100 130

TK71630S

Stable area

(mA)

OUT

Output side capacitor CL = 2.2 µF

100

ESR (Ω)

0.1

0.01 0 50 100 130

TK71630AS

Stable area

3.3 µF

OUT

(mA)

December 1999 TOKO, Inc. Page 15

Page 16

TK716xx

(°C)

APPLICATION INFORMATION (CONT.)

The value of ESR between ceramic and tantalum capacitors differs by about two orders of magnitude as illustrated below. The characteristics of tantalum capacitors also vary widely according to manufacturer. The output capacitor becomes a part of the phase compensation in a LDO regulator using a PNP pass transistor. Because of this, it is necessary to optimize the phase compensation in the IC for use with ceramic or tantalum capacitors.

ESR vs. TEMPERATURE

ESR (Ω)

0.1

0.01

-20 0 50 60

at 100 kHZ

Tantalum Cap

Ceramic Cap

TEMPERATURE

BOARD LAYOUT

CONTROL

GND

SOT23-5 BOARD LAYOUT

OUT

NOISE

BYPASS

Page 16 December 1999 TOKO, Inc.

Page 17

APPLICATION INFORMATION (CONT.)

TK716xxS

OUT

GND

VOLTAGE

DETECTOR IC

CONT

OFF

µ PRO

RESET

TK716xx

REVERSE BIAS PROTECTION

The internal reverse bias protection eliminates the requirement for a reverse voltage protection diode. This saves both cost and board space.

TK716xxS

GND

OUT

Another reverse bias protection technique is illustrated below. The extra diode and extra capacitor are not necessary with the TK716xx. The high output voltage accuracy is maintained because the diode forward voltage variations over temperature and load current have been eliminated.

TK716xxS

OUTV

The high output voltage accuracy and low dropout voltage are maintained when the IC is turned ON/OFF by using the control pin as illustrated below.

µ PRO

CONT

TK716xxS

GND

OUT

High-side switching with a FET is illustrated below. Battery life is extended by the dropout voltage of the FET when the input of the TK716xx is connected in front of the FET switch.

FET SWITCHING OUTPUT

716xx

CONT

OUT

VOLTAGE BACKUP OPERATION (HOLDUP TIME) C

becomes the backup power supply when the

HIGH-SIDE SWITCHING

microprocessor is reset with the voltage detector IC

simultaneously with the turning OFF the TK716xx. C High-side switching should not be implemented by an external transistor as shown below. This results in additional

provides the holdup time necessary to do an orderly

shutdown of the microprocessor. voltage drop and loss of accuracy.

DROP

VOLTAGE

REGULATOR

ON/OFF

CONTROL

December 1999 TOKO, Inc. Page 17

OUT

Page 18

TK716xx

APPLICATION INFORMATION (CONT.)

PARALLEL ON/OFF CONTROL

The figure below illustrates multiple regulators being controlled by a single ON/OFF control signal. The series resistor R is put in the input line of the low output voltage regulator in order to prevent overdissipation. The voltage dropped across the resistor reduces the large input-tooutput voltage across the regulator, reducing the power dissipation in the device.

TK71650

TK71630

TK71620

ON/OFF CONTROL

5 V

3 V

2 V

SWITCHING OPERATION

Even though the input voltages or the output voltages are different, the outputs of the TK716xx regulators can be connected together, and the output voltages switched. If two or more TK716xx regulators are turned ON simultaneously, the highest output voltage will be present.

ON/OFF LOGIC

TK716xx

CMOS

REGULATOR

OUT

CURRENT BOOST OPERATION

The output current can be increased by connecting an

external PNP transistor as shown below. The output

current capability depends upon the Hfe of the external

transistor. Note: The TK716xx internal short circuit

protection and thermal sensor do not protect the external

transistor.

150 Ω

0.22 µF

CONT

TK716xx

OUT

CONT

ON/OFF LOGIC

CONT

TK71630

TK71628

OUT

3.0 OR 2.8 V

The outputs of the TK716xx regulator and a CMOS regulator can be connected together as long as the output voltage of the TK716xx is greater than the CMOS regulator. When the TK716xx is OFF, the CMOS regulator is turned ON. When the TK716xx is ON, the CMOS regulator is turned OFF.

Page 18 December 1999 TOKO, Inc.

Page 19

NOTES

TK716xx

December 1999 TOKO, Inc. Page 19

Page 20

TK716xx

PACKAGE OUTLINE

SOT23-5

Dimensions are shown in millimeters Tolerance: x.x = ± 0.2 mm (unless otherwise specified)

2.9

Marking Information

0.7

Marking

(0.6)

+0.15

-0.05

0.4

0.950.95

1.4 max

0.1

1.0

2.4

1.6

e e

0.95

1.90

Recommended Mount Pad

0.1

1.1 (0.8)

+0.15

- 0.05

0 - 0.1

0.15

± 0.3

2.8 0 - 15 max

Part Number TK716xxS TK716xxAS

Marking Marking

TK71613 L13 13L TK71614 L14 14L TK71615 L15 15L TK71616 L16 16L TK71617 L17 17L TK71618 L18 18L TK71619 L19 19L TK71620 L20 20L TK71621 L21 21L TK71622 L22 22L TK71623 L23 23L TK71624 L24 24L TK71625 L25 25L TK71626 L26 26L TK71627 L27 27L TK71628 L28 28L TK71629 L29 29L TK71630 L30 30L TK71631 L31 31L TK71632 L32 32L TK71633 L33 33L TK71634 L34 34L TK71635 L35 35L TK71636 L36 36L TK71637 L37 37L TK71638 L38 38L TK71639 L39 39L TK71640 L40 40L TK71641 L41 41L TK71642 L42 42L TK71643 L43 43L TK71644 L44 44L TK71645 L45 45L TK71646 L46 46L TK71647 L47 47L TK71648 L48 48L TK71649 L49 49L TK71650 L50 50L TK71651 L51 51L TK71652 L52 52L TK71653 L53 53L TK71654 L54 54L

Check Table 4 for availability.

Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864

TOKO AMERICA REGIONAL OFFICES

Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864

Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790

Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223

Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375

Visit our Internet site at http://www.tokoam.com

The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc.

Page 20 December 1999 TOKO, Inc.

IC-216-TK716xx

0798O0.0K

Printed in the USA