TK71747SCL TOKO, Inc, TK71747SCL Datasheet

TK71747SCL

Manufacturer Part Number

TK71747SCL

Description

Manufacturer

TOKO, Inc

Datasheets

1.TK71722.pdf (13 pages)

2.TK71728SCL.pdf (23 pages)

Specifications of TK71747SCL

Date_code

05+

Packing_info

SOT-153

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

TK71747SCL-G

Manufacturer:

TOKO

Quantity:

20 000

Current page: 1 of 13
Download datasheet (153Kb)

October 2001 TOKO, Inc.

FEATURES

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

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

VOLTAGE CODE

Very Good Stability (CL = 0.22 mF is Stable For

Any Type Capacitor withV

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

Quickly

Wide Operating Voltage Range (1.8 V ~ 14 V)

Very Low Dropout Voltage (V

100 mA)

Peak Output Current is 370 mA (0.3 V DROP Point)

Very Low Quiescent Current (I

Good Ripple Rejection Ratio (80 dB at 1 kHz)

High Precision Output Voltage (± 1.5 % or ± 50 mV)

Suitable for Very Low Noise Applications

Built-in Active High On/Off Control (0.1 mA Max

Standby Current)

Built-in Short Circuit Protection

Built-in Thermal Shutdown

Very Small Surface Mount Package (SOT23-5)

Energy of the Output Capacitor is Discharged

Voltage Code

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

Package Code

ORDERING INFORMATION

TK717

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

RMS

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

. An internal PNP pass transistor

S L

OUT

TAPE/REEL CODE

L: Tape Left

OPERATING TEMP. RANGE

C: -30 ~ 80°C

PACKAGE CODE

S: SOT23-5

= 72 uA at I

DROP

³ 1.8 V)

Operating Temp. Range

= 103 mV at

Tape/Reel Code

OUT

= 0 mA)

LOW DROPOUT VOLTAGE REGULATOR

APPLICATIONS

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.

CONTROL

Battery Powered Systems

Measurement Systems

Mobile Communications Systems

Cordless Phone, PHS, GSM, CDMA

Industrial Equipment

Personal Computers, Barcode Readers

V IN

CONTROL CIRCUIT

REFERENCE

BANDGAP

BLOCK DIAGRAM

GND

CONTROL

TK717xxS

BYPASS

CONSTANT

CURRENT

NOISE

SOURCE

GND

V IN

OVER CURRENT

PROTECTION

THERMAL &

TK717xxS

DISCHARGE

CIRCUIT

AUTO

BYPASS

V OUT

NOISE

V OUT

Page 1

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