TPS53851

更新时间： 2024-11-29 12:47:11

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
64页	1042K
描述
DUAL OR 2-PHASE, STACKABLE CONTROLLER

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TPS53851 数据手册

TPS53851

www.ti.com

SLUS985–DECEMBER 2009

DUAL OR 2-PHASE, STACKABLE CONTROLLER

Check for Samples: TPS53851

1 INTRODUCTION

1.1 FEATURES

• VDD From 4.5 V to 15 V, With Internal 5-V

Regulator

CSRT1

• V_OUTFrom 0.7 V to 5.8 V

• Converts From 15-V Input to 0.7-V Output at

1MHz

TPS53851

HDRV1

CS1

• Dual-Output or 2-Phase Interleaved Operation,

Stackable to 16 Phases

SW1

OUT1

• Supports Pre-Biased Outputs

LDRV1

Programmable Switching Frequency Up to 1

MHz/Phase

• 0.5% Internally Trimmed 0.7-V Reference

VIN

CSRT2

CS2

HDRV2

SW2

• 10-μA Shutdown Current

• Current Mode Control with Forced Current

OUT2

Sharing⁽¹⁾

• 1-V to 40-V Power Stage Operation Range

LDRV2

• Power Sharing from Different Input Voltage

Rails, (e.g. Master from 5 V, Slave from 12 V)

• True Remote Sensing Differential Amplifier

• Programmable Input Undervoltage Lockout

• Resistive or Inductor DCR Current Sensing

• Provide a 6-Bit Digitally-Controlled Output

When Used With TPS40120

UDG-09151

1.3 DESCRIPTION

The

TPS53851

multifunctional

synchronous buck controller that can be

configured to provide either a single-output

two-phase power supply or a power supply

that supports two independent outputs.

Several TPS53851 controllers can be stacked

up to a 16-phase multiphase single output

power supply. Alternatively, several controllers

providing multiple independent outputs can be

synchronized in an interleaving pattern for

improved input ripple current.

• 36-pin QFN Package

1.2 APPLICATIONS

•

Graphic Cards

Internet Servers

Networking Equipment

Telecommunications Equipment

DC Power Distributed Systems

The TPS53851 is capable of converting from a

15-V input to a 0.7-V output at 1MHz.

Each phase operates at a switching frequency

of up to 1 MHz. The two phases in one device

operate 180° out-of-phase. In a multiple device

stackable configuration, the phase shift of the

slaves, relative to a master, is programmable.

(1) Patents Pending

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.

PowerPAD 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...64

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与TPS53851相关器件

型号	品牌	获取价格	描述	数据表
TPS53851RHHR	TI	获取价格	DUAL OR 2-PHASE, STACKABLE CONTROLLER
TPS53851RHHT	TI	获取价格	DUAL OR 2-PHASE, STACKABLE CONTROLLER
TPS53915	TI	获取价格	具有 PMBus 的 1.5V 至 18V、12A 同步 SWIFT™ 降压转换器
TPS53915RVER	TI	获取价格	具有 PMBus 的 1.5V 至 18V、12A 同步 SWIFT™ 降压转换器 \| R
TPS53915RVET	TI	获取价格	具有 PMBus 的 1.5V 至 18V、12A 同步 SWIFT™ 降压转换器 \| R
TPS5401	TI	获取价格	0.5-A, 42-V Input, Step-Down SWIFT? Converter
TPS54010	TI	获取价格	2.2 - 4 -V, 14-A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)
TPS54010-EP	TI	获取价格	增强型产品 2.2V 至 4V、14A 输出的同步降压 PWM 转换开关
TPS54010MPWPEP	TI	获取价格	暂无描述
TPS54010MPWPREP	TI	获取价格	暂无描述

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