Datasheet > C1608X7R1H152K

C1608X7R1H152K

更新时间： 2024-11-20 06:45:51

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
9页	206K
描述
High-Integration, High-Efficiency Power Solution Using DC/DC Converters With DVFS

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C1608X7R1H152K 数据手册

Application Report

SLVA340A–June 2009–Revised May 2010

High-Integration, High-Efficiency Power Solution Using

DC/DC Converters With DVFS

Ambreesh Tripathi .......................................................................... PMP - DC/DC Low-Power Converters

ABSTRACT

This reference design helps those desiring to design-in the TMS320C6742, TMS320C6746,

TMS320C6748 and OMAP-L138. This design, employing sequenced power supplies, describes a system

with an input voltage of 5V, and uses a high-efficiency DC/DC Converter with integrated FETs and DVFS

for a small, simple system.

Sequenced power supply architectures are becoming commonplace in high-performance microprocessor

and digital signal processor (DSP) systems. To save power and increase processing speeds, processor

cores have small-geometry cells that require lower supply voltages than the system-bus voltages. Power

management in these systems requires special attention. This application note addresses these topics

and suggests solutions for output-voltage sequencing.

Contents

Introduction .................................................................................................................. 1

Power Requirements ....................................................................................................... 2

Features ...................................................................................................................... 3

List of Material ............................................................................................................... 5

List of Figures

PMP4977 Reference Design Schematic.................................................................................

Optional circuit for DVDD_A, DVDD_B and DVDD_C .................................................................

Shows Sequencing in Start-Up Waveform ..............................................................................

DCDC1: Efficiency vs Output Current....................................................................................

DCDC2: Efficiency vs Output Current....................................................................................

DCDC3: Efficiency vs Output Current....................................................................................

List of Tables

PMP4977 List of Material ..................................................................................................

Introduction

In dual-voltage architectures, coordinated management of power supplies is necessary to avoid potential

problems and ensure reliable performance. Power supply designers must consider the timing and voltage

differences between core and I/O voltage supplies during power-up and power-down operations.

Sequencing refers to the order, timing and differential in which the two voltage rails are powered up and

down. A system designed without proper sequencing may be at risk for two types of failures. The first of

these represents a threat to the long term reliability of the dual-voltage device, while the second is more

immediate, with the possibility of damaging interface circuits in the processor or system devices such as

memory, logic or data-converter ICs.

I²C is a trademark of Philips Electronics N.V. Corporation.

SLVA340A–June 2009–Revised May 2010

High-Integration, High-Efficiency Power Solution Using DC/DC Converters With

DVFS

12 3 4 5 6 7...9

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与C1608X7R1H152K相关器件

型号	品牌	获取价格	描述	数据表
C1608X7R1H152KB	TDK	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 50V, 10% +Tol, 10% -Tol, X7R, 15% TC, 0.0015uF, Su
C1608X7R1H152KT	TDK	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 50V, 10% +Tol, 10% -Tol, X7R, 15% TC, 0.0015uF, Su
C1608X7R1H152M	TDK	获取价格	CAP CER 1500PF 50V X7R 0603
C1608X7R1H153K	TDK	获取价格	Ceramic Capacitors For General Use SMD
C1608X7R1H153K	INFINEON	获取价格	16A Highly Integrated SupIRBuck
C1608X7R1H153K080AA	TDK	获取价格	Multilayer Ceramic Chip Capacitors
C1608X7R1H153K080AA_17	TDK	获取价格	Multilayer Ceramic Chip Capacitors
C1608X7R1H153KT	TDK	获取价格	Ceramic Capacitor, Multilayer, Ceramic, 50V, 10% +Tol, 10% -Tol, X7R, 15% TC, 0.015uF, Sur
C1608X7R1H153M080AA	TDK	获取价格	CAP CER 0.015UF 50V X7R 0603
C1608X7R1H153M080AA_17	TDK	获取价格	Multilayer Ceramic Chip Capacitors

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