TPS7250

更新时间： 2024-11-05 06:01:39

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
37页	627K
描述
MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS

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TPS7250 数据手册

TPS7201Q, TPS7225Q, TPS7230Q

TPS7233Q, TPS7248Q, TPS7250Q, TPS72xxY

MICROPOWER LOW-DROPOUT (LDO) VOLTAGE REGULATORS

SLVS102G – MARCH 1995 – REVISED JUNE 2000

D, P, OR PW PACKAGE

Available in 5-V, 4.85-V, 3.3-V, 3.0-V, and

2.5-V Fixed-Output and Adjustable Versions

(TOP VIEW)

Dropout Voltage <85 mV Max at

†

‡

SENSE /FB

OUT

= 100 mA (TPS7250)

RESET/PG

GND

Low Quiescent Current, Independent of

Load, 180 µA Typ

8-Pin SOIC and 8-Pin TSSOP Package

†

‡

SENSE

–

Fixed voltage options only

Output Regulated to ±2% Over Full

Operating Range for Fixed-Output Versions

(TPS7225, TPS7230, TPS7233, TPS7248,

and TPS7250)

Extremely Low Sleep-State Current,

FB – Adjustable version only (TPS7201)

0.5 µA Max

600

Power-Good (PG) Status Output

= 25°C

description

500

The TPS72xx family of low-dropout (LDO) voltage

regulators offers the benefits of low-dropout

voltage, micropower operation, and miniaturized

packaging. These regulators feature extremely

low dropout voltages and quiescent currents

compared to conventional LDO regulators.

Offered in small-outline integrated-circuit (SOIC)

packages and 8-terminal thin shrink small-outline

(TSSOP), the TPS72xx series devices are ideal

for cost-sensitive designs and for designs where

board space is at a premium.

TPS7225

400

300

200

100

TPS7230

TPS7233

TPS7248

TPS7250

150

A combination of new circuit design and process

innovation has enabled the usual pnp pass

transistor to be replaced by a PMOS device.

Because the PMOS pass element behaves as a

low-value resistor, the dropout voltage is very low

– maximum of 85 mV at 100 mA of load current

(TPS7250) – and is directly proportional to the

load current (see Figure 1). Since the PMOS pass

100

200

250

– Output Current – mA

Figure 1. Typical Dropout Voltage Versus

Output Current

element is a voltage-driven device, the quiescent current is very low (300 µA maximum) and is stable over the

entire range of output load current (0 mA to 250 mA). Intended for use in portable systems such as laptops and

cellular phones, the low-dropout voltage and micropower operation result in a significant increase in system

battery operating life.

The TPS72xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current

to 0.5 µA maximum at T = 25°C. Other features include a power-good function that reports low output voltage

and may be used to implement a power-on reset or a low-battery indicator.

The TPS72xx is offered in 2.5-V, 3-V, 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version

(programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2%

over line, load, and temperature ranges (3% for adjustable version).

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...37

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与TPS7250相关器件

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TPS72501	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501_07	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501D	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DCQ	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DCQG4	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DCQR	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DCQRG4	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DR	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DRG4	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR
TPS72501DT	TI	获取价格	LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR

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