Datasheet > 电源电路 > 开关式稳压器或控制器> DPA02257RGBR

DPA02257RGBR

更新时间： 2024-11-27 11:07:07

品牌	Logo	应用领域
德州仪器 - TI		开关双倍数据速率控制器开关式稳压器开关式控制器电源电路转换器开关式稳压器或控制器
页数	文件大小	规格书
25页	834K
描述
适用于 DDR 内存终端的低输入电压、6A 同步降压 SWIFT™ 转换器 \| RGB \| 20 \| -40 to 85

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DPA02257RGBR 数据手册

TPS53317

www.ti.com

SLUSAK4 –JUNE 2011

3.3-V/5-V Input, 6-A, D-CAP+™ Mode Synchronous Step-Down Integrated FETs Converter

Check for Samples: TPS53317

FEATURES

APPLICATIONS

•

TI proprietary Integrated MOSFET and

Packaging Technology

External Tracking

Minimum External Components Count

1-V to 6-V Conversion Voltage

D-CAP+™ Mode Architecture

Supports All MLCC Output Capacitors and

SP/POSCAP

Selectable SKIP and Forced CCM

Optimized Efficiency at Light and Heavy Loads

Selectable 600-kHz and 1-MHz Switching

Frequency

Selectable Overcurrent Limit (OCL)

Overvoltage Protection and Hiccup

Undervoltage Protection

Thermal Shutdown

Adjustable Output Voltage Ranging Between

0.6 V and 2 V

Small 3.5 mm × 4 mm, 20-Pin QFN Package

•

VTT Terminators

Low-Voltage Applications for 1-V to 6-V

Step-Down Rails

•

DESCRIPTION

The TPS53317 is a fully-integrated,synchronous buck

regulator employing D-CAP+™ technology. It is used

for rail step-downs from 1 V to 6 V where space is a

consideration, and an optimized component count is

required.

•

The TPS53317 features two switching frequency

settings (600 kHz and 1 MHz), synchronous operation

in skip (low ripple) mode, integrated droop support,

external tracking support, pre-bias startup, output soft

discharge, integrated bootstrap switch, power good

function, EN/Input UVLO protection, and both output

ceramic and SP/POS/AL capacitor support. It

supports supply and conversion voltages up to 6.0 V,

and output voltages adjustable from 0.6 V to 2.0 V. It

also provides external tracking support.

•

The TPS53317 is available in the 3.5 mm by 4 mm,

20-pin QFN package (Green RoHs compliant and Pb

free) with TI proprietary Integrated MOSFET and

packaging technology and is specified from -40°C to

85°C.

TPS53317

VIN

BST 16

17 EN

V_OUT

COMP PGOOD 19

PGOOD

VREF

PGND

VOUT 10

MODE 18

REFIN

PGNDGND

GND GND

5VIN

20 V5IN

GND

UDG-11105

PGND

GND

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-CAP+ 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...25

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DPA02257RGBR 替代型号

型号	品牌	替代类型	描述	数据表
TPS51462RGET	TI	功能相似	3.3-V/5-V Input, D-CAPâ¢ Mode Synchronous St
TPS51462RGER	TI	功能相似	3.3-V/5-V Input, D-CAPâ¢ Mode Synchronous St

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