TK73220

更新时间： 2024-11-29 22:49:51

品牌	Logo	应用领域
TOKO		稳压器
页数	文件大小	规格书
16页	121K
描述
LOW DROPOUT REGULATOR

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中文翻译

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数据手册

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TK73220 数据手册

TK732xx

LOW DROPOUT REGULATOR

FEATURES

APPLICATIONS

■ Up to 5 A Output Current Capability With External

PNP Transistor

■ Battery Powered Systems

■ Cellular/Cordless Telephones

■ Radio Control Systems

■ Internal Short Circuit Protection

■ Excellent Load Regulation

■ Wireless Communications Systems

■ Portable Instrumentations

■ CMOS/TTL-Compatible On/Off Switch

■ Internal Reverse Bias Current Protection Switch

■ Internal Thermal Shutdown

■ Portable Computers

■ Personal Digital Assistants

■ Local Area Network (LAN) Receivers

■ Lithium Ion Battery Chargers

■ Power Recovery for Microprocessors

■ Broad Operating Voltage Range

■ High Impedance V_SENSEPin (Off Mode)

■ Continuous and Pulsed Current Modes

DESCRIPTION

The TK732xx is a controller IC for a low dropout voltage

regulator. The TK732xx and the external PNP power

transistor provide standard output voltages from 2 to 11 V

and output current from 100 mA to 5 A. By utilizing an

external PNP power transistor, low dropout voltage at high

current can be readily achieved. The internal electronic

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 high logic level. A pin for a bypass capacitor, which

connects to the internal circuitry, is provided to lower the

overall output noise level.

TK732xx

CONTROL

NOISE

BASE

SENSE

BYPASS

01S

GND

PULSE

The current limit characteristics can be configured as

continuous(constantcurrent)orpulsed(cycling).Aninternal

thermal shutdown circuit limits the junction temperatures

to below 150 °C. In the “off” mode, the output of the

regulator becomes a high impedance. This prevents the

output capacitor from being rapidly discharged for backup

to the load.

BLOCK DIAGRAM

SENSE

BASE

PULSE

ORDERING INFORMATION

TK732

M L

ON/OFF

CIRCUIT

THERMAL

SENSOR

Grade

Voltage Code

Package Code

Tape/Reel Code

Temp. Code

CONTROL

PACKAGE CODE

M: SOT-23L-8

VOLTAGE CODE

TAPE/REEL CODE

L: Tape Left

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

27 = 2.7 V

28 = 2.8 V

29 = 2.9 V

30 = 3.0 V

31 = 3.1 V

32 = 3.2 V

44 = 4.4 V

BANDGAP

REFERENCE

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

43 = 4.3 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

55 = 5.5 V *

70 = 7.0 V *

80 = 8.0 V

11 = 11.0 V

GRADE

LEAKAGE

PROTECTION

TEMP. RANGE

C: -30 to 80 C **

None: Standard 2%

I : -40 to 85

H: High (Special) ***

* Unavailable with I Rank

** unless Otherwise Specified

*** TK73241MCLH, TK73242MCLH Available Only

GND

NOISE BYPASS

January 1999 TOKO, Inc.

Page 1

12 3 4 5 6 7...16

中文翻译

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与TK73220相关器件

型号	品牌	获取价格	描述	数据表
TK73220M	TOKO	获取价格	LOW DROPOUT REGULATOR
TK73220MC	TOKO	获取价格	Fixed Positive LDO Regulator, 2V, PDSO8, SOT-23L, 8 PIN
TK73220MCBX	TOKO	获取价格	暂无描述
TK73220MCL	TOKO	获取价格	Fixed Positive LDO Regulator, 2V, PDSO8, SOT-23L, 8 PIN
TK73220MCLH	TOKO	获取价格	LOW DROPOUT REGULATOR
TK73220MCLH/20	TOKO	获取价格	LOW DROPOUT REGULATOR
TK73220MCTL	TOKO	获取价格	Fixed Positive LDO Regulator, 2V, PDSO8, SOT-23L, 8 PIN
TK73220MIBX	TOKO	获取价格	暂无描述
TK73220MILH	TOKO	获取价格	LOW DROPOUT REGULATOR
TK73220MILH/20	TOKO	获取价格	LOW DROPOUT REGULATOR

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