SC2463

更新时间： 2024-10-01 04:05:27

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器开关
页数	文件大小	规格书
23页	460K
描述
High Performance Quad Output Switching Regulator

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SC2463 数据手册

SC2463

High Performance Quad Output

Switching Regulator

POWER MANAGEMENT

Description

Features

The SC2463 is a high performance controller for multi-

output converters that can be configured for a wide vari-

ety of applications. The SC2463 utilizes PWM synchro-

nous buck topologies where efficiency is most important.

It also provides two dedicated programmable positive

linear regulators using external transistors. Each of the

four outputs is adjustable down to 0.5V. The two PWM

switchers are synchronized 180° out of phase reducing

input ripple, allowing for fewer input capacitors. Power

up sequencing prevents converter latch-up.

Two synchronized converters for low noise

Power up sequencing to prevent latch-up

Out of phase operation for low input ripple

Over current protection

Wide input range, 4.5 to 30V

Programmable frequency up to 700kHz

Low shutdown current 100uA

Two synchronous bucks for high efficiency at high

current

Two programmable positive linear regulators

Output voltage as low as 0.5V

Small package TSSOP-28. This product is fully

WEEE and RoHS compliant

The SC2463 can be synchronized to other converters to

prevent beat frequencies. The wide range programmable

operating frequency allows users to optimize a converter

design. The PWM switchers sense the voltage across the

low-side MOSFETs on-resistance to efficiently provide

adjustable current-limit, eliminating costly current-sense

resistors. A POK signal is issued when soft-start is com-

plete on both PWM switchers and their outputs are within

10% of the set point.

Applications

DSL applications with multiple input voltage

requirements

Mixed-Signal applications requiring 4 positive

output voltages

Cable modem power management

Base station power management

Typical Application Circuit

+4.5-30V

SS/SHDN

OSC

BST2

GD2H

PH2

+3.3V

SYNC

POK

(as low as 0.5V)

+3.3V

+2.5V

GD2L

FB2

C10

C14

C11

BD4

FB4

BD3

FB3

EO2

SC2463

C12

BST1

GD1H

PH1

C13

+1.5V

R10

GD1L

FB1

(as low as 0.5V)

C15

R12

R13

C17

C18

EO1

C19

R11

C20

R15

+1.2V

R16 R17

R14

R18

C16

Revision: May 16, 2007

www.semtech.com

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与SC2463相关器件

型号	品牌	获取价格	描述	数据表
SC2463TSTRT	SEMTECH	获取价格	High Performance Quad Output Switching Regulator
SC246B	ASI	获取价格	TRIAC, 200V V(DRM), 10A I(T)RMS,
SC246C	ASI	获取价格	TRIAC, 300V V(DRM), 10A I(T)RMS,
SC246D	POWEREX	获取价格	TRIAC, 400V V(DRM), 10A I(T)RMS
SC246D	ASI	获取价格	TRIAC, 400V V(DRM), 10A I(T)RMS,
SC246E	POWEREX	获取价格	TRIAC, 500V V(DRM), 10A I(T)RMS
SC246M	POWEREX	获取价格	TRIAC, 600V V(DRM), 10A I(T)RMS
SC246M	ASI	获取价格	TRIAC, 600V V(DRM), 10A I(T)RMS,
SC2475	SYSTEMSENSOR	获取价格	Strobes and Horn Strobes
SC2475	GAMEWELL-FCI	获取价格	SC Strobes and PC Horn/Strobes