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SC1403ITSTRT

更新时间： 2024-02-08 03:12:39

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
31页	560K
描述
Mobile Multi-Output PWM Controller with Lossless Current Sense

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中文翻译

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技术参数
数据手册
替代型号

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SC1403ITSTRT 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	TSSOP
包装说明：	TSSOP, TSSOP28,.25	针数：	28
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.8
模拟集成电路 - 其他类型：	DUAL SWITCHING CONTROLLER	控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	30 V
最小输入电压：	6 V	标称输入电压：	15 V
JESD-30 代码：	R-PDSO-G28	JESD-609代码：	e3
长度：	9.7 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	28
最高工作温度：	85 °C	最低工作温度：	-40 °C
最大输出电流：	1 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP28,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.2 mm	子类别：	Switching Regulator or Controllers
表面贴装：	YES	切换器配置：	PUSH-PULL
最大切换频率：	380 kHz	温度等级：	INDUSTRIAL
端子面层：	MATTE TIN	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	4.4 mm
Base Number Matches：	1

SC1403ITSTRT 数据手册

SC1403

Mobile Multi-Output PWM Controller

with Lossless Current Sense

POWER MANAGEMENT

Description

Features

The SC1403 is a multiple-output power supply controller 3.3V and 5V dual synchronous outputs, resistor

designed to power battery operated systems. The

SC1403 provides synchronous buck converter control

for two (3.3V and 5V) power supplies. An efficiency of

95% can be achieved for the two supplies. The SC1403

uses Semtech’s proprietary Virtual Current Sense™ tech-

nology along with external error amplifier compensation

to achieve enhanced stability and DC accuracy over a

wide range of output filter components while maintain-

ing fixed frequency operation. Lossless current sensing

can be used to eliminate current sense resistors and

reduce cost. The SC1403 also provides a 5V linear regu-

lator for system housekeeping. The 5V linear regulator

is derived from the battery; for improved efficiency, the

output is switched to the 5V output when available.

programmable to 2.5V

Fixed frequency or PSAVE operation for maximum

efficiency over wide load range

5V / 50mA linear regulator

Virtual Current Sense™ for enhanced stability

Lossless current limiting

Out of phase switching reduces input capacitance

External compensation supports wide range of

output filter components

Programmable power-up sequence

Power Good output

Output overvoltage and overcurrent protection with

output undervoltage shutdown

6µA typical shutdown current

Control functions include power-up sequencing, soft start,

power-good signaling, and frequency synchronization. Line

and load regulation is to +/-1%. The internal oscillator

can be set to 200kHz, 300kHz, or synchronized to an

external clock. The mosfet drivers provide >1A peak

drive current for fast mosfet switching.

6mW typical quiescent power

Applications

Notebook and subnotebook computers

Tablet PCs

The SC1403 includes a PSAVE# input to select pulse skip-

ping mode for high efficiency at light load, or fixed fre-

quency mode for low noise operation.

Embedded applications

Typical Application Circuit

Revision 5, April 2004

United States Patent No. 6,377,032

www.semtech.com

12 3 4 5 6 7...31

中文翻译

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SC1403ITSTRT 替代型号

型号	品牌	替代类型	描述	数据表
SC1403ITSTR	SEMTECH	完全替代	Mobile Multi-Output PWM Controller with Virtual Current SenseTM
ADP3421JRU-REEL7	ONSEMI	功能相似	SWITCHING CONTROLLER, PDSO28, TSSOP-28
SC1404ITSTR	SEMTECH	功能相似	Mobile Multi-Output PWM Controller with Virtual Current Sense

与SC1403ITSTRT相关器件

型号	品牌	获取价格	描述	数据表
SC1404	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current Sense
SC1404_05	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current SenseTM
SC1404ISSTR	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current Sense
SC1404ISSTRT	SEMTECH	获取价格	暂无描述
SC1404ITSTR	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current Sense
SC1404ITSTRT	SEMTECH	获取价格	Dual Switching Controller, Current-mode, 380kHz Switching Freq-Max, PDSO28, ROHS COMPLIANT
SC1405	SEMTECH	获取价格	HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
SC1405B	SEMTECH	获取价格	High Speed Synchronous Power MOSFET Smart Driver
SC1405B.TR	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, CMOS, PDSO14, 0.635 MM PITCH, MO-153AB1, TSSOP-14
SC1405B.TRT	SEMTECH	获取价格	Half Bridge Based MOSFET Driver, 3A, PDSO14, 0.635 MM PITCH, MO-153AB1, TSSOP-14

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