TPS53125PW

更新时间： 2024-02-15 01:02:01

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
22页	446K
描述
DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS

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TPS53125PW 数据手册

TPS53125

www.ti.com

SLVS947A –OCTOBER 2009–REVISED OCTOBER 2009

DUAL SYNCHRONOUS STEP-DOWN CONTROLLER

FOR LOW VOLTAGE POWER RAILS

Check for Samples: TPS53125

FEATURES

APPLICATIONS

•

Point-of-Load Regulation in Low Power

Systems for Wide Range of Applications

•

D-CAP2™ Mode Control

–

Fast Transient Response

–

Digital TV Power Supply

Networking Home Terminal

Digital Set-Top Box (STB)

DVD Player/Recorder

Gaming Consoles

No External Parts Required for Loop

Compensation

–

Compatible With Ceramic Output

Capacitors

•

High Initial Reference Accuracy (±1%)

Low Output Ripple

DESCRIPTION

Wide Input Voltage Range:4.5 V to 24 V

Output Voltage Range: 0.76 V to 5.5 V

Low-Side R_DS(ON)Loss-Less Current Sensing

The TPS53125 is a dual, adaptive on-time D-CAP2™

mode synchronous buck controller. The part enables

system designers to cost effectively complete the

suite of various end equipment's power bus

regulators with a low external component count and

low standby consumption. The main control loop for

the TPS53125 uses the D-CAP2™ Mode topology

which provides a very fast transient response with no

external component.

Adaptive Gate Drivers with Integrated Boost

Diode

•

Adjustable Soft Start

Non-Sinking Pre-Biased Soft Start

350-kHz Switching Frequency

The TPS53125/7 also has a proprietary circuit that

enables the device to adapt not only low equivalent

series resistance (ESR) output capacitors such as

POSCAP/SP-CAP, but also ceramic capacitor. The

part provides a convenient and efficient operation

with conversion voltages from 4.5 V to 24 V and

output voltage from 0.76 V to 5.5 V.

Cycle-by-Cycle Over-Current Limiting Control

30-mV to 300-mV OCP Threshold Voltage

Thermally Compensated OCP by 4000 ppm/°C

at I_TRIP

The TPS53125 is available in the 24 pin RGE/PW

package, and is specified from –40°C to 85°C

ambient temperature range.

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.

D-CAP2 is a trademark of Texas Instruments.

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...22

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TPS53125PW 替代型号

型号	品牌	替代类型	描述	数据表
TPS53125PWR	TI	完全替代	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS

与TPS53125PW相关器件

型号	品牌	获取价格	描述	数据表
TPS53125PWR	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53125RGER	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53125RGET	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53126	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53126PW	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53126PWR	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53126RGER	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53126RGET	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53127	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS
TPS53127_1	TI	获取价格	DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS

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