TK71628SCL TOKO, Inc, TK71628SCL Datasheet

TK71628SCL

Manufacturer Part Number

TK71628SCL

Description

Manufacturer

TOKO, Inc

Datasheet

1.TK71628SCL.pdf (20 pages)

Specifications of TK71628SCL

Case

SOT23-5

Date_code

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Download datasheet (112Kb)

December 1999 TOKO, Inc.

DESCRIPTION

The TK716xx is a low dropout linear regulator housed in a

small SOT23-5 package, rated at 500 mW. The phase

compensation in the IC has been optimized to allow the

use of ceramic or tantalum output capacitors. The device

is in the “on” state when the control pin is pulled to a logic

high level. An internal PNP pass transistor is used to

achieve a low dropout voltage of 90 mV (typ.) at 50 mA

load current. This device offers high precision output

voltage of

and dropout voltage make this part ideal for battery pow-

ered applications. This part incorporates an output discon-

nect feature to reduce the reverse bias current in the “off”

state to less than 50 nA.

FEATURES

VOLTAGE CODE*

13 = 1.3 V

14 = 1.4 V

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

24 = 2.4 V

25 = 2.5 V

26 = 2.6 V

*Check Table 4

for availability.

Available in

Active High On/Off Control

Very Low Quiescent Current

Very Low Dropout Voltage

Reverse Bias Protection

Miniature Package (SOT23-5)

Short Circuit Switch

High Ripple Rejection

Very High Output Impedance (Output Off)

Very Low Noise

Capacitor Code

Package Code

Voltage Code

ORDERING INFORMATION

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

2.0 % or

TK716

2.0 % or

1.0 %. The low quiescent current

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

51 = 5.1 V

52 = 5.2 V

53 = 5.3 V

54 = 5.4 V

1.0 % Output Tolerance

SCL

S I L

SCL H

TAPE/REEL CODE

L: Tape Left

TEMPERATURE CODE

C: Standard Temp. Range

PACKAGE CODE

S: SOT23-5

TOLERANCE CODE

H: 1 % Output Voltage Tolerance

CAPACITOR CODE

None: Ceramic Capacitor

A: Tantalum Capacitor

I: Extended Temp. Range

(Not available in I temp code)

Tolerance Code

Tape/Reel Code

Temp. Code

LOW DROPOUT VOLTAGE REGULATOR

APPLICATIONS

The internal reverse bias protection eliminates the require-

ment for a reverse voltage protection diode, saving cost

and board space. The high 60 dB ripple rejection (400 Hz)

and low noise provide enhanced performance for critical

applications. An external capacitor can be connected to

the noise bypass pin to lower the output noise level to 30

CONTROL

Vrms.

Battery Powered Systems

Cellular Telephones

Pagers

Personal Communications Equipment

Portable Instrumentation

Portable Consumer Equipment

Radio Control Systems

Toys

Low Voltage Systems

V IN

CONTROL

CIRCUIT

BLOCK DIAGRAM

REFERENCE

BANDGAP

GND

TK716xx

CONSTANT

CURRENT

SOURCE

CONTROL

BYPASS

OVERCURRENT

NOISE

THERMAL AND

PROTECTION

GND

V IN

TK716xx

DISCONNECT

CIRCUIT

BYPASS

V OUT

Page 1

NOISE

V OUT

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