Toko TK71515AS, TK71516AS, TK71517AS, TK71518AS, TK71519AS Schematic [ru]

TK715xxAS

FEATURES

nHigh Voltage Precision at ± 2.0% or ± 60 mV

nVery Low Quiescent Current

nVery Low Dropout Voltage

nReverse Voltage Protection

nMiniature Package (SOT23-3)

nShort Circuit Protection

nHigh Ripple Rejection

nCan use Multilayer Ceramic Capacitors

LOW DROPOUT VOLTAGE REGULATOR

APPLICATIONS

nBattery Powered Systems

nCellular Telephones

nPagers

nPersonal Communications Equipment

nPortable Instrumentation

nPortable Consumer Equipment

nRadio Control Systems

nToys

nLow Voltage Systems

DESCRIPTION

The TK715xx is a low dropout linear regulator housed in a small SOT23-3 package, rated at 400 mW. An internal PNP transistor is used to achieve a low dropout voltage of 105 mV (typ.) at 50 mA load current. This device offers high precision output voltage of ± 2.0 % or ± 60 mV. The TK715xx has a very low quiescent current of 25 µA (typ.) at no load. The low quiescent current and dropout voltage make this part ideal for battery powered applications. 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 and low noise provide enhanced performance for critical applications.

ORDERING INFORMATION

TK715

ASCL

Voltage Code

Tape/ Reel Code

Temp. Code

Package Code

VOLTAGE CODE

TEMPERATURE CODE

TAPE/REEL CODE

15 = 1.5 V

35 = 3.5 V

C -30 to +80 °C

L: Tape Left

16 = 1.6 V

36 = 3.6 V

PACKAGE CODE

17 = 1.7 V

37 = 3.7 V

18 = 1.8 V

38 = 3.8 V

S : SOT-23-3

19 = 1.9 V

39 = 3.9 V

20 = 2.0 V

40 = 4.0 V

21 = 2.1 V

41 = 4.1 V

22 = 2.2 V

42 = 4.2 V

23 = 2.3 V

43 = 4.3 V

24 = 2.4 V

44 = 4.4 V

25 = 2.5 V

45 = 4.5 V

26 = 2.6 V

46 = 4.6 V

27 = 2.7 V

47 = 4.7 V

28 = 2.8 V

48 = 4.8 V

29 = 2.9 V

49 = 4.9 V

30 = 3.0 V

50 = 5.0 V

31 = 3.1 V

60 = 6.0 V

32 = 3.2 V

70 = 7.0 V

33 = 3.3 V

80 = 8.0 V

34 = 3.4 V

90 = 9.0 V

TK715xxAS

VIN VOUT

20P 30T

GND

BLOCK DIAGRAM
VIN	VOUT
THERMAL
PROTECTION
-	-
+	+
BANDGAP
REFERENCE
GND

March 2001 TOKO, Inc.

Page 1

TK715xxAS

ABSOLUTE MAXIMUM RATINGS (VOUT£ 5.0 V)

Supply Voltage .............................................	-0.4 to 19	V
Power Dissipation (Note 1) ................................	400 mW
Reverse Bias .............................................................	8	V
Short Circuit Current...........................................	170 mA
Storage Temperature (Ambient) ..............	-55 to +150 °C

Operating Temperature (Ambient) ............	-30 to +80	°C
Max. Operating Temperature (Junction) .............	125	°C
Operating Voltage Range ...........................	1.8 to 18.0 V
Junction Temperature .........................................	150	°C
Lead Soldering Temperature (10 s) .....................	235	°C

TK715xx ELECTRICAL CHARACTERISTICS (VOUT £ 5.0 V)

Test conditions: VIN = VOUT(TYP) + 1V, TA = 25 °C, unless otherwise specified.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN		TYP		MAX	UNITS
IQ	Quiescent Current	IOUT = 0 mA			25		45	µA
IGND	Ground Pin Current	IOUT = 15 mA			300		500	µA
VOUT	Output Voltage	IOUT = 5 mA		See Table 1				V
Line Reg	Line Regulation	VIN = VOUT(TYP) + 1 V to VOUT(TYP) + 6 V			3		12	mV
Load Reg	Load Regulation	IOUT = 5 to 100 mA, (Note 2)			18		36	mV
		IOUT = 50 mA			0.105		0.18	V
VDROP	Dropout Voltage (Note 5)	IOUT = 100 mA, 2.4 V £ VOUT £ 5.0 V			0.16		0.28	V
		IOUT = 100 mA, 2.1 V £ VOUT £ 2.4 V			0.16		0.30	V
			115		155
IOUT(MAX)	Continuous Output Current							mA
		1.8 V £ Vin £ 2.1 V (Note 3)	70		90
RR	Ripple Rejection	(Note 4)			60			dB
∆ VOUT / ∆ T	Temperature Coefficient	IOUT = 5 mA			30			ppm/°C

Note 1: Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for operation above 25 °C. Note 2: Refer to “Definition of Terms.”

Note 3: Please refer to the Applications Section for more information.

Note 4: Ripple rejection is measured at VR = 200 mVrms, VIN = VOUT(TYP) + 2 V, IOUT = 10 mA, CL = 2.2 µF, f = 100 Hz.

Note 5: The minimum operating voltage for VIN can be 1.8 V. Also, the minimum voltage required for VIN is VIN = VDROP + VOUT. As a result, operating at VOUT £ 2.0 V at the minimum input operating voltage is not preferred.

Gen. Note: Parameters with min. or max. values are 100% tested at TA = 25 °C.

Page 2

March 2001 TOKO, Inc.

TK715xxAS

ABSOLUTE MAXIMUM RATINGS (VOUT ³

Supply Voltage .............................................	-0.4 to 19	V
Power Dissipation (Note 1) ................................	400 mW
Reverse Bias .............................................................	8	V
Short Circuit Current...........................................	170 mA
Storage Temperature (Ambient) ..............	-55 to +150 °C

5.1 V)

Operating Temperature (Ambient) ............	-30 to +80	°C
Max. Operating Temperature (Junction) .............	125	°C
Operating Voltage Range ..............................	1.8 to 18 V
Junction Temperature .........................................	150	°C
Lead Soldering Temperature (10 s) .....................	235	°C

TK715xx ELECTRICAL CHARACTERISTICS (VOUT ³ 5.1 V)

Test conditions: VIN = VOUT(TYP) + 1V, TA = 25 °C, unless otherwise specified.

SYMBOL	PARAMETER	TEST CONDITIONS	MIN		TYP		MAX	UNITS
IQ	Quiescent Current	IOUT = 0 mA			32		60	µA
IGND	Ground Pin Current	IOUT = 15 mA			300		500	µA
VOUT	Output Voltage	IOUT = 5 mA		See Table 1				V
Line Reg	Line Regulation	VIN = VOUT(TYP) + 1 V to			3		12	mV
		VOUT(TYP) + 6 V or Max 18 V
Load Reg	Load Regulation	IOUT = 5 to 100 mA, (Note 2)			35		80	mV
VDROP	Dropout Voltage	IOUT = 50 mA			0.105		0.18	V
		IOUT = 100 mA			0.160		0.28	V
IOUT(MAX)	Continuous Output Current		115		155			mA
RR	Ripple Rejection	(Note 3)			60			dB
∆ VOUT / ∆ T	Temperature Coefficient	IOUT = 5 mA			30			ppm/°C

Note 1: Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for operation above 25 °C. Note 2: Refer to “Definition of Terms.”

Note 3: Ripple rejection is measured at VR = 200 mVrms, VIN = VOUT(TYP) + 2 V, IOUT = 10 mA, CL = 2.2 µF, f = 100 Hz. Gen. Note: Parameters with min. or max. values are 100% tested at TA = 25 °C.

March 2001 TOKO, Inc.

Page 3

TK715xxAS

TK715xxAS ELECTRICAL CHARACTERISTICS TABLE 1

Output	Voltage	VOUT(MIN)	VOUT(MAX)	Test
Voltage	Code			Voltage
1.5 V	15	1.440 V	1.560 V	2.5 V
1.6 V	16	1.540 V	1.660 V	2.6 V
1.7 V	17	1.640 V	1.760 V	2.7 V
1.8 V	18	1.740 V	1.860 V	2.8 V
1.9 V	19	1.840 V	1.960 V	2.9 V
2.0 V	20	1.940 V	2.060 V	3.0 V
2.1 V	21	2.040 V	2.160 V	3.1 V
2.2 V	22	2.140 V	2.260 V	3.2 V
2.3 V	23	2.240 V	2.360 V	3.3 V
2.4 V	24	2.340 V	2.460 V	3.4 V
2.5 V	25	2.440 V	2.560 V	3.5 V
2.6 V	26	2.540 V	2.660 V	3.6 V
2.7 V	27	2.640 V	2.760 V	3.7 V
2.8 V	28	2.740 V	2.860 V	3.8 V
2.9 V	29	2.840 V	2.960 V	3.9 V
3.0 V	30	2.940 V	3.060 V	4.0 V
3.1 V	31	3.040 V	3.160 V	4.1 V
3.2 V	32	3.140 V	3.260 V	4.2 V
3.3 V	33	3.240 V	3.360 V	4.3 V
3.4 V	34	3.340 V	3.460 V	4.4 V

Output	Voltage	VOUT(MIN)	VOUT(MAX)	Test
Voltage	Code			Voltage
3.5 V	35	3.440 V	3.560 V	4.5 V
3.6 V	36	3.530 V	3.670 V	4.6 V
3.7 V	37	3.630 V	3.770 V	4.7 V
3.8 V	38	3.730 V	3.870 V	4.8 V
3.9 V	39	3.830 V	3.970 V	4.9 V
4.0 V	40	3.930 V	4.070 V	5.0 V
4.1 V	41	4.030 V	4.170 V	5.1 V
4.2 V	42	4.130 V	4.270 V	5.2 V
4.3 V	43	4.230 V	4.370 V	5.3 V
4.4 V	44	4.330 V	4.470 V	5.4 V
4.5 V	45	4.430 V	4.570 V	5.5 V
4.6 V	46	4.530 V	4.670 V	5.6 V
4.7 V	47	4.630 V	4.770 V	5.7 V
4.8 V	48	4.730 V	4.870 V	5.8 V
4.9 V	49	4.830 V	4.970 V	5.9 V
5.0 V	50	4.930 V	5.070 V	6.0 V
6.0 V	60	5.880 V	6.120 V	7.0 V
7.0 V	70	6.860 V	7.140 V	8.0 V
8.0 V	80	7.840 V	8.160 V	9.0 V
9.0 V	90	8.820 V	9.180 V	10.0 V

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March 2001 TOKO, Inc.

TK715xxAS

TEST CIRCUIT

IIN	VOUT
VIN
VIN
CIN	CL	IOUT	VOUT
0.1 µF	1.0 µF
	TANTALUM

GND

TYPICAL PERFORMANCE CHARACTERISTICS

TA = 25 °C, unless otherwise specified.

VOUT (10 mV/ DIV)

LOAD REGULATION

VOUT TYPICAL

VOUT (V)

0	50	100
	IOUT (mA)

	SHORT CIRCUIT CURRENT				OUTPUT VOLTAGE vs.
						INPUT VOLTAGE
5				VOUT TYPICAL

4	DIV)	IOUT = 0 mA
3	mV/	IOUT = 50 mA
	(25
2	OUT	IOUT = 100 mA
	V
1		50 mV/DIV
		VIN = VOUT

0

0	100	200	0
	IOUT (mA)		VIN (V)

LINE REGULATION

REVERSE BIAS CURRENT RANGE

	VOUT TYPICAL			100		(VIN = 0 V)
					Because the output voltage is
DIV)				80	different, the reverse current
			(µA)		will change this area.
mV/
					VOUT = 2.0 V
(50			REV	60
OUT			I	40
V
				20
				0		VOUT = 8.0 V
0	10	20		0	5	10
	VIN (V)				VREV (V)

IQ (mA)

INPUT CURRENT VS.

INPUT VOLTAGE

2		IOUT = 0 mA

1

VOUT = 3 V

0

0	5	10
	VIN (V)

March 2001 TOKO, Inc.

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