SC1402

更新时间： 2024-01-19 18:22:45

品牌	Logo	应用领域
商升特 - SEMTECH		电脑控制器
页数	文件大小	规格书
18页	271K
描述
Multi-Output, Low-Noise Power Supply Controller for Notebook Computers

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技术参数
数据手册

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SC1402 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP,	针数：	28
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.86
模拟集成电路 - 其他类型：	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：	e0
长度：	10.2 mm	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	封装主体材料：	PLASTIC/EPOXY
封装代码：	SSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, SHRINK PITCH	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	2 mm
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	330 kHz	温度等级：	INDUSTRIAL
端子面层：	TIN LEAD	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：	5.3 mm
Base Number Matches：	1

SC1402 数据手册

Multi-Output, Low-Noise Power Supply

Controller for Notebook Computers

SC1402

TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com

December 15, 2000

DESCRIPTION

FEATURES

•= 6V to 30V Input range

The SC1402 is pin compatible with the MAX1632 with

improved load regulation performance. The SC1402 is

a multiple-output power supply controller designed to

power logic supply components in battery operated

systems. The SC1402 utilizes synchronous rectified

buck topologies to generate two voltages, (3.3V and

5V) with up to 95% efficiency. It also provides two lin-

ear regulators for system housekeeping functions. The

12V linear regulator output is generated from a coupled

inductor of the 5V switching regulator.

•= 3.3V and 5V dual synchronous rectified outputs

•= Fixed frequency or PSAVE for maximum efficiency

over wide load current range

•= 5V/50mA linear regulator

•= 12V/120mA linear regulator

•= Precision 2.5V reference output

•= Programmable power-up sequence

•= Power good output (RESET)

•= Output over current protection

•= Output over voltage protection

•= Output under voltage shut down

•= 4µA typical shut down current

•= 7mW typical quiescent power

Control functions include: power up sequencing, soft

start, power-good signaling, automatic bootstrapping

for high side MOSFETs, and frequency synchroniza-

tion. An internal precision 2.5V reference ensures ±2%

output voltage. The internal oscillator can be adjusted

to 200kHz, 300kHz or synchronized to an external

clock. The MOSFET drivers provide 1A peak drive

current for fast MOSFET switching.

APPLICATIONS

•= Notebook and subnotebook computers

•= PDAs and Mobile communicators

•= Desktop DC-DC converters

The SC1402 includes a PSAVE enable input to select

a pulse skipping mode for high efficiency or a fixed fre-

quency mode for low noise operation.

ORDERING INFORMATION:

DEVICE

PACKAGE⁽¹⁾

TEMP. (T_A)

SC1402ISS

SSOP-28

-40 - +85°C

Note:

(1) Only available in tape and reel packaging. (Suffix ‘.TR’).

TYPICAL APPLICATION CIRCUIT

NEWBURY PARK CA 91320

652 MITCHELL ROAD

12 3 4 5 6 7...18

中文翻译

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与SC1402相关器件

型号	品牌	获取价格	描述	数据表
SC1402ISS	SEMTECH	获取价格	Multi-Output, Low-Noise Power Supply Controller for Notebook Computers
SC1402ISS.TR	SEMTECH	获取价格	Switching Controller, Current-mode, 1A, 330kHz Switching Freq-Max, PDSO28, MO-150AH, SSOP-
SC1402ISS.TRT	SEMTECH	获取价格	Switching Controller, Current-mode, 1A, 330kHz Switching Freq-Max, PDSO28, MO-150AH, SSOP-
SC1402ISST	SEMTECH	获取价格	Switching Controller, Current-mode, 0.2A, 330kHz Switching Freq-Max, PDSO28, SSOP-28
SC1402ISSTR	SEMTECH	获取价格	Switching Controller, Current-mode, 330kHz Switching Freq-Max, PDSO28, MO-150AH, SSOP-28
SC1403	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current SenseTM
SC1403_04	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Lossless Current Sense
SC1403ITSTR	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current SenseTM
SC1403ITSTRT	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Lossless Current Sense
SC1404	SEMTECH	获取价格	Mobile Multi-Output PWM Controller with Virtual Current Sense

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