TK11950 TOKO, Inc, TK11950 Datasheet

TK11950

Manufacturer Part Number

TK11950

Description

Manufacturer

TOKO, Inc

Datasheets

1.TK11950.pdf (23 pages)

2.TK11950.pdf (10 pages)

Specifications of TK11950

Date_code

05+

Packing_info

SOT-89-6

Current page: 1 of 23
Download datasheet (135Kb)

FEATURES

DESCRIPTION

The TK119xx series are low power, linear regulators with

built-in electronic switches. Built-in voltage comparators

provide a reset logic ”low” level whenever the input or

output voltage falls outside internally preset limits. The

internal electronic switch can be controlled by CMOS or

TLL levels. The device is in the “off” state when the control

pin is biased “high”.

An internal PNP pass-transistor is used in order to achieve

low dropout voltage (typically 200 mV at 50 mA load

current). The device has very low quiescent current

(130 A) in the “on” mode with no load and 2 mA with 30

mA load. The quiescent current is typically 4 mA at 60 mA

load. The current consumption in the “off” mode is 65 A.

An internal thermal shutdown circuit limits the junction

temperature to below 150

monitored and the device will shut down (no load current)

in the presence of a short circuit at the output. The output

noise is very low at 100 dB down from V

external noise bypass capacitor is used. The TK119xx is

available in a miniature SOT-23L surface mount package.

January 1999 TOKO, Inc.

VOLTAGE CODE

22 = 2.25 V

27 = 2.75 V

30 = 3.00 V

32 = 3.25 V

Very Low Dropout Voltage

Reset Output for Microprocessor

Very Low Quiescent Current (No Load)

Internal Thermal/Overload Shutdown

Low Noise Voltage

Input and Output Voltage Sense

CMOS or TTL On/Off Control

High Speed On/Off Transient (50 s typ.)

2.5 % Output Voltage Accuracy

35 = 2.5 V

40 = 4.0 V

48 = 4.8 V

50 = 5.0 V

ORDERING INFORMATION

TK119

C. The load current is internally

Voltage Code

Tape/Reel Code

TAPE/REEL CODE

TL: Tape Left

OUT

when an

VOLTAGE REGULATOR WITH RESET OUTPUT

FEATURES

CONTROL

Battery Powered Systems

Cellular Telephones

Pagers

Personal Communications Equipment

Portable Instrumentation

Portable Consumer Equipment

Radio Control Systems

Toys

Low Voltage Systems

V IN

REFERENCE

BANDGAP

DOWN

SHUT

BYPASS

BLOCK DIAGRAM

NOISE

PROTECTION

THERMAL

TK119xx

CONTROL

BYPASS

OUTPUT

RESET

NOISE

DETECTION

GND

ERROR

TK119xx

V IN

GND

V OUT

Page 1

V OUT

OUTPUT

RESET

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