TPS797

更新时间： 2024-11-16 11:07:55

品牌	Logo	应用领域
德州仪器 - TI		电源电路线性稳压器IC
页数	文件大小	规格书
17页	636K
描述
具有电源正常指示功能的 50mA、超低 IQ、低压降稳压器

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TPS797 数据手册

TPS797xx

www.ti.com

SLVS332H –MARCH 2001–REVISED APRIL 2012

Ultra-Low I_Q, 50mA LDO Linear Regulators with Power Good Output

in SC70 Package

Check for Samples: TPS797xx

FEATURES

DESCRIPTION

The TPS797xx family of low-dropout (LDO) voltage

regulators offers the benefits of low-dropout voltage

and ultralow-power operation. The device is stable

•

50mA Low-Dropout Regulator

Ultralow 1.2μA Quiescent Current at 10mA

5-Pin SC70 (DCK) Package

with

any

capacitor

(> 0.47μF).

Therefore,

implementations of this device require very little board

space due to the miniaturized packaging and

potentially small output capacitor. In addition, the

family includes an integrated open drain active-high

power good (PG) output. Intended for use in

microcontroller-based, battery-powered applications,

the TPS797xx family low dropout and ultralow-

powered operation results in a significant increase in

system battery operating life. The small packaging

minimizes consumption of board space.

Integrated Power Good Output

Stable With Any Capacitor (> 0.47μF)

Dropout Voltage Typically 105mV at 10mA

(TPS79733)

•

Over-Current Limitation

–40°C to +85°C Operating Junction

Temperature Range

APPLICATIONS

The device is enabled when the applied voltage

exceeds the minimum input voltage. The usual PNP

pass transistor has been replaced by a PMOS pass

element. Because the PMOS pass element behaves

as a low-value resistor, the dropout voltage is very

low, typically 105mV at 10mA of load current, and is

directly proportional to the load current. The

quiescent current is ultralow (1.2μA typically) and is

stable over the entire range of output load current

(0mA to 50mA). When properly configured with a pull-

up resistor, the PG output can be used to implement

a power-on reset or low battery indicator.

•

Battery-Powered Microcontrollers and

Microprocessors

2.00

V_I= 4.3V

V_O= 3.3V

C_O= 1mF

I_O= 10mA

1.75

1.50

1.25

1.00

0.75

0.50

DCK PACKAGE

(Top View)

OUT

GND

-40

-15

Free-Air Temperature (°C)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...17

中文翻译

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与TPS797相关器件

型号	品牌	获取价格	描述	数据表
TPS79718	TI	获取价格	ULTRALOW-POWER SC70/SOT-323 PACKAGED 10 mA LDO LINEAR REGULATORS WITH POWER GOOD OUTPUT
TPS79718_12	TI	获取价格	Ultra-Low IQ, 50mA LDO Linear Regulators with Power Good Output in SC70 Package
TPS79718DCKR	TI	获取价格	Ultra-Low IQ, 50mA LDO Linear Regulators with Power Good Output in SC70 Package
TPS79718DCKRG4	TI	获取价格	Ultra-Low IQ, 50mA LDO Linear Regulators with Power Good Output in SC70 Package
TPS79718DCKT	TI	获取价格	Ultra-Low IQ, 50mA LDO Linear Regulators with Power Good Output in SC70 Package
TPS79718DCKTG4	TI	获取价格	Ultra-Low IQ, 50mA LDO Linear Regulators with Power Good Output in SC70 Package
TPS79718-EP	TI	获取价格	ULTRA LOW-POWER, 10 mA, LDO LINEAR REGULATORS WITH POWER GOOD OUTPUT
TPS79718MDCKREP	TI	获取价格	暂无描述
TPS79718-Q1	TI	获取价格	ULTRALOW-POWER SC70/SOT-223 PACKAGED 10MA LDO LINEAR REGULATORS WITH POWER GOOD OUPUT
TPS79718-Q1_16	TI	获取价格	ULTRALOW-POWER SC70/SOT-323 PACKAGED 10 mA LDO LINEAR REGULATORS WITH POWER GOOD OUTPUT

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