Datasheet > TPS74701_15

TPS74701_15

更新时间： 2024-11-26 02:58:23

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德州仪器 - TI		/
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描述
500-mA Low-Dropout Linear Regulator

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TPS74701_15 数据手册

TPS74701

www.ti.com

SBVS099A–NOVEMBER 2007–REVISED NOVEMBER 2007

500mA Low-Dropout Linear Regulator with Programmable Soft-Start

FEATURES

DESCRIPTION

•

Ultra-Low V_INand V_OUTRange: 0.8V to 5.5V

The TPS74701 low-dropout (LDO) linear regulator

provides an easy-to-use, robust power management

•

V_BIASRange 2.7V to 5.5V

Low Dropout: 50mV typ at 500mA, V_BIAS= 5V

solution for

wide variety of applications.

Power Good (PG) Output Allows Supply

Monitoring or Provides a Sequencing Signal

for Other Supplies

User-programmable soft-start minimizes stress on the

input power source by reducing capacitive inrush

current on start-up. The soft-start is monotonic and

well-suited for powering many different types of

processors and ASICs. The enable input and power

good output allow easy sequencing with external

regulators. This complete flexibility permits the user to

configure a solution that meets the sequencing

requirements of FPGAs, DSPs, and other

applications with special start-up requirements.

•

2% Accuracy Over Line/Load/Temperature

Programmable Soft-Start Provides Linear

Voltage Startup

•

V_BIASPermits Low V_INOperation with Good

Transient Response

•

Stable with Any Output Capacitor ≥ 2.2µF

A precision reference and error amplifier deliver 2%

accuracy over load, line, temperature, and process.

The device is stable with any type of capacitor

greater than or equal to 2.2µF, and is fully specified

from –40°C to +125°C. The TPS74701 is offered in a

small 3mm × 3mm SON-10 package for compatibility

with the TPS74801.

Available in a Small 3mm × 3mm × 1mm

SON-10 Package

APPLICATIONS

•

FPGA Applications

DSP Core and I/O Voltages

Post-Regulation Applications

Applications with Special Start-Up Time or

Sequencing Requirements

•

Hot-Swap and Inrush Controls

C_SS= 0nF

C_SS= 560pF

V_IN

C_SS= 5600pF

0.5V/div

V_OUT

R₃

R₁

C_IN

BIAS

V_OUT

OUT

TPS74701

V_BIAS

C_OUT

GND

C_BIAS

3.8V

V_EN

C_SS

R₂

1.8V

1V/div

Time (2ms/div)

Figure 1. Typical Application Circuit (Adjustable)

Figure 2. Turn-On Response

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...24

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与TPS74701_15相关器件

型号	品牌	获取价格	描述	数据表
TPS74701DRC	TI	获取价格	Simple Power Solution Using LDOs
TPS74701DRCR	TI	获取价格	500mA Low-Dropout Linear Regulator with Programmable Soft-Start
TPS74701DRCRG4	TI	获取价格	500mA Low-Dropout Linear Regulator with Programmable Soft-Start
TPS74701DRCT	TI	获取价格	500mA Low-Dropout Linear Regulator with Programmable Soft-Start
TPS74701DRCTG4	TI	获取价格	500mA Low-Dropout Linear Regulator with Programmable Soft-Start
TPS74701-Q1	TI	获取价格	500-mA LOW-DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START
TPS74701QDRCRQ1	TI	获取价格	500-mA LOW-DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START
TPS74801	TI	获取价格	1.5A LDO Linear Regulator with Programmable Soft-Start
TPS74801AQWDRCRQ1	TI	获取价格	具有电源正常指示和使能功能的汽车类 1.5A、0.8V 低噪声可调节 LDO 稳压器 \|
TPS74801AWDRCR	TI	获取价格	具有电源正常指示和使能功能的 1.5A、0.8V、可调节低压降 (LDO) 稳压器 \| D

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