TK11148S datasheet, PDF - EEWORLD Datasheet

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TK11148S: DescriptionVOLTAGE REGULATOR WITH ON/OFF SWITCH; File Size90KB，16 Pages; ManufacturerTOKO, INC.; Websitehttps://www.murata.com/

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TK11148S Overview

VOLTAGE REGULATOR WITH ON/OFF SWITCH

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TK111xxS

VOLTAGE REGULATOR WITH ON/OFF SWITCH

FEATURES

High Voltage Precision at

2.0% or

60 mV

Active High On/Off Control

Very Low Dropout Voltage (85 mV at 30 mA)

Very Low Noise

Miniature Package (SOT-23-5)

Internal Thermal Shutdown

Short Circuit Protection

Excellent Ripple Rejection (70 dB @ 1 kHz)

Reverse Bias Protection

APPLICATIONS

Battery Powered Systems

Cellular Telephones

Pagers

Personal Communications Equipment

Portable Instrumentation

Portable Consumer Equipment

Radio Control Systems

Toys

DESCRIPTION

The TK111xxS 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. An

external capacitor can be connected to the noise bypass

pin to lower the output noise level to 30

µVrms.

An internal PNP pass transistor is used to achieve a low

dropout voltage of 85 mV (typ.) at 30 mA load current. The

TK111xxS has a very low quiescent current of 140

µA

(typ.) at no load . The standby current is 100 nA maximum.

The internal thermal shut down circuitry limits the junction

temperature to below 150

°C.

The load current is internally

monitored and the device will shut down in the presence of

a short circuit or overcurrent condition at the output.

The TK111xxS is available in a miniature SOT-23-5 surface

mount package.

20P

TK111xxS

CONTROL

GND

NOISE BYPASS

VIN

VOUT

BLOCK DIAGRAM

ORDERING INFORMATION

TK111

Voltage Code

S L

Tape/Reel Code

Temp. Code

Package Code

VIN

VOUT

THERMAL

PROTECTION

CONTROL

VOLTAGE CODE

20 = 2.0 V

21 = 2.1 V

22 = 2.2 V

23 = 2.3 V

24 = 2.4 V

25 = 2.5 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

Note 1:

2.0 to 2.3 V

43 = 4.3 V

available in C

44 = 4.4 V

temperature code

45 = 4.5 V

(-30 to +80

°C)

only

46 = 4.6 V

47 = 4.7 V

48 = 4.8 V

49 = 4.9 V

50 = 5.0 V

TAPE/REEL CODE

L: Tape Left

PACKAGE CODE

S: SOT-23-5

C: -30 to +80

°C

I: -40 to +85

°C

BANDGAP

REFERENCE

GND

TEMP. CODE

NOISE

BYPASS

March 1999 TOKO, Inc.

Page 1

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