TOKO TK717xxS User Manual

TK717xxS

CONTROL

GND

V

IN

+

-

BANDGAP

REFERENCE

THERMAL &

OVER CURRENT

PROTECTION

NOISE

BYPASS

CONTROL CIRCUIT

CONSTANT

CURRENT

SOURCE

V

OUT

AUTO

DISCHARGE

CIRCUIT

LOW DROPOUT VOLTAGE REGULATOR

FEATURES

n Very Good Stability (CL = 0.22 mF is Stable For

Any Type Capacitor withV

³ 1.8 V)

OUT

n Built-in Shunt Circuit of Output to GND. The Stored

Energy of the Output Capacitor is Discharged
Quickly

n Wide Operating Voltage Range (1.8 V ~ 14 V)
n Very Low Dropout Voltage (V

100 mA)

= 103 mV at

DROP

n Peak Output Current is 370 mA (0.3 V DROP Point)
n Very Low Quiescent Current (I

= 72 uA at I

Q

= 0 mA)

OUT

n Good Ripple Rejection Ratio (80 dB at 1 kHz)
n High Precision Output Voltage (± 1.5 % or ± 50 mV)
n Suitable for Very Low Noise Applications
n Built-in Active High On/Off Control (0.1 mA Max

Standby Current)

n Built-in Short Circuit Protection
n Built-in Thermal Shutdown
n Very Small Surface Mount Package (SOT23-5)

DESCRIPTION

TK717xxS is a low dropout linear regulator with a built-in
electronic switch. The internal switch can be controlled by
TTL or CMOS logic levels. The device is in the ON state
when the control pin is pulled to a logic high level. In the OFF
state, the output impedance becomes very low, quickly
discharging the output capacitor. An external capacitor can
be connected to the noise bypass pin to lower the output
noise level to 30 ~ 50 mV
is included to achieve a low dropout voltage of 103 mV at
100 mA load current. The TK717xx has an exceptionally

. An internal PNP pass transistor

RMS

APPLICATIONS

n Battery Powered Systems
n Measurement Systems
n Mobile Communications Systems
n Cordless Phone, PHS, GSM, CDMA
n Industrial Equipment
n Personal Computers, Barcode Readers

low quiescent current of 72 mA at no load and 0.8 mA with
a 50 mA load. The standby current is typically 100 pA. The
circuit features very good stability. The ripple rejection is 90
dB at 400 Hz and 80 dB at 1 kHz. Stable operation is
achieved with an output capacitor as low as 0.22 mF; a
capacitor of any type may be used. (However, the larger the
output capacitor is, the better the overall characteristics will
be.)

The TK717xxS is available in a very small SOT23-5 surface
mount package.

TK717xxS

V

IN

S

1

0

GND

CONTROL

V

OUT

NOISE

BYPASS

ORDERING INFORMATION

BLOCK DIAGRAM

TK717 S L

Voltage Code

Package Code

VOLTAGE CODE

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

October 2001 TOKO, Inc. Page 1

24 =2.4 V
25 =2.5 V
26 =2.6 V
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

Tape/Reel Code

Operating Temp. R ange

TAPE/REEL CODE
L: Tape Left

OPERATING TEMP. RANGE
C: -30 ~ 80°C

PACKAGE CODE
S: SOT23-5

TK717xxS

ABSOLUTE MAXIMUM RATINGS

Supply Voltage............................................... -0.4 to16 V

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

Reverse Bias Voltage ..................................... -0.4 to 6 V

Operating Voltage Range ............................... 1.8 to 14 V

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

TK717xxSCL ELECTRICAL CHARACTERISTICS

Test conditions: TA = 25 °C, unless otherwise specified.

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

Operating Temperature Range..................... -30 to +80 °C

Noise Bypass Pin Voltage .............................. -0.4 to 5 V

Control Pin Voltage ....................................... -0.4 to 16 V

Short Circuit Current............................................ 410 mA

V

TUO

geReniLnoitalugeReniL

geRdaoLnoitalugeRdaoL

V

PORD

egatloVtuptuO 1elbaTeeS

VNIV=

egatloVtuoporD

I

TUO

)PYT(TUO

I<Am5

TUO

I<Am5

TUO

VotV1+

,V6+ D V5=V

)PYT(TUO

2etoN,Am001<842Vm
2etoN,Am002<7216Vm

Am05=56031Vm

3.05 Vm

)5etoN(

I

TUO

I

TUO

I

TUO

I

)XAM(TUO

tnerruCtuptuOmumixaMVnehW

V8.1 £ V

I

Q

I

YBTS

tnerruCtnecseiuQI

tnerruCybdnatSV

TUO

CC

Am001=301002Vm

V4.2(Am002= £ V
V1.2(Am081= £ V

TUO

£ eulaVecnerefeR,V1.2052Am

NI

V,V8=

£ edoMffO,V51.00.01.0

TNOC

)361003Vm

TUO

TUO

)V4.2<361003Vm

2etoN,V3.0nwoD082073Am

IgnidulcxEAm0=

TNOC

27011

mA
mA

I

DNG

I

sid

Page 2 October 2001 TOKO, Inc.

tnerruCniPDNGI

tnerruCegrahcsiDV

TUO

VER

V

VER

V

VER

V

VER

Am05=8.05.1Am

)02717(edoMffO,V2=3192Am
)03717(edoMffO,V3=3283Am
)04717(edoMffO,V4=5214Am
)05717(edoMffO,V5=7244Am

TK717xxSCL ELECTRICAL CHARACTERISTICS (CONT.)

Test conditions: TA = 25 °C, unless otherwise specified.

LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU

)4dna3etoNeeS(SNOITACIFICEPSLANIMRETLORTNOC

TK717xxS

I

TNOC

V
V

V

DV
V

Note 1: Power dissipation is 150 mW in free air. Power dissipation is 500 mW when mounted as recommended. Derate at 4.0 mW/°C for operation
Note 2: This value depends on the output voltage. This is a reference value for a 3 V output device.

Note 3: The input current decreases to the pA level by connecting the control terminal to GND.
Note 4: The pull-down resistor is not built-in.
Note 5: The minimum operating voltage for VIN can be 1.8 V. Also, the minimum voltage required for VIN is VIN = V

General Note: The operation of -30 °C to 80 °C is guaranteed by design (verified by sample inspection).
General Note: Exceeding the “Absolute Maximum Rating “may damage the device.
General Note: Output noise is 0.20 mV/ ÖHz typical at 1 kHz: BW 400 to 30 kHz and 30 ~ 60 m Vrms.
General Note: Connecting a capacitor to the noise by pass pin will decrease the output noise voltage.

)NO(TNOC

FER

/DT

TUO

ON

above 25°C.

at V

)FFO(TNOC

egatloV

£ 2.0 V at the mimimum input operating voltage is not preferred.

OUT

tnerruClortnoCV

TUO

NOegatloVlortnoCedoMnO6.1V

FFOegatloVlortnoCedoMffO6.0V

lanimreTssapyBesioN

tneiciffeoCerutarepmeT C°/mpp52=pyTeulaVecnerefeR

esioNtuptuO02.0eulaVecnerefeR m /V Ö zHk1talacipyTzH

etatSnOV8.1=68.05.2Aµ

62.1V

+ V

DROP

. As a result, operating

OUT

October 2001 TOKO, Inc. Page 3

TK717xxS

TK717xxSCL ELECTRICAL CHARACTERISTICS TABLE 1

Test Conditions: VIN = V

OUT(TYP)

+ 1 V, I

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

OUT

TUPTUO

EGATLOV

EGATLOV

EDOCV

NIMV

TUO

XAM

TUO

TSET

EGATLOV

TUPTUO

EGATLOV

EGATLOV

EDOCV

NIM

TUO

V

TUO

XAM

V5.151V054.1V055.1V5.2V3.333V052.3V053.3V3.4
V6.161V055.1V056.1V6.2V4.343V943.3V154.3V4.4
V7.171V056.1V057.1V7.2V5.353V744.3V355.3V5.4
V8.181V057.1V058.1V8.2V6.363V645.3V456.3V6.4
V9.191V058.1V059.1V9.2V7.373V446.3V657.3V7.4
V0.202V059.1V050.2V0.3V8.383V347.3V758.3V8.4
V1.212V050.2V051.2V1.3V9.393V148.3V959.3V9.4
V2.222V051.2V052.2V2.3V0.404V049.3V060.4V0.5
V3.232V052.2V053.2V3.3V1.414V830.4V261.4V1.5
V4.242V053.2V054.2V4.3V2.424V731.4V362.4V2.5
V5.252V054.2V055.2V5.3V3.434V532.4V563.4V3.5
V6.262V055.2V056.2V6.3V4.444V433.4V664.4V4.5

TSET

EGATLOV

V7.272V056.2V057.2V7.3V5.454V234.4V865.4V5.5
V8.282V057.2V058.2V8.3V6.464V135.4V966.4V6.5
V9.292V058.2V059.2V9.3V7.474V926.4V177.4V7.5
V0.303V059.2V050.3V0.4V8.484V827.4V278.4V8.5
V1.313V050.3V051.3V1.4V9.494V628.4V479.4V9.5
V2.323V051.3V052.3V2.4V0.505V529.4V570.5V0.6

The output voltage table indicates the standard value when manufactured.

Page 4 October 2001 TOKO, Inc.