Datasheet > SC401B

SC401B

更新时间： 2024-11-27 07:20:31

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器
页数	文件大小	规格书
32页	1470K
描述
15A Integrated FET Regulator with Programmable LDO

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

SC401B 数据手册

SC401B

15A Integrated FET Regulator

with Programmable LDO

POWER MANAGEMENT

Features

Description



Power System

The SC401B is a stand-alone synchronous EcoSpeed^TMbuck

power supply which incorporates Semtech’s advanced

patented adaptive on-time control architecture. This pro-

vides excellent light-load efficiency and fast transient

response. It features integrated power MOSFETs, a boot-

strap switch, and a programmable LDO in a 5x5mm

package. The device is highly eﬃcient and uses minimal

PCB area. The SC401B has the same package and pin con-

ﬁguration as the entire SC40xB series for compatibility.

• Input voltage — 3V to 17V

• Bias voltage — 3V to 5.5V LDO or external

• Up to 96% peak eﬃciency

• Integrated bootstrap switch

• Programmable LDO output — 200mA

• Reference tolerance — 1% T_J= -40 to +125 °C

• Programmable soft-start time

Logic Input/Output Control



• Independent EN controls for LDO and switcher

• Programmable V_INUVLO threshold

• Power good output

The SC401B supports using standard capacitor types such

as electrolytic or specialty polymer, in addition to ceramic,

at switching frequencies up to 1MHz. The programmable

frequency, synchronous operation, and selectable power

save provide high eﬃciency operation over a wide load

range.

• Selectable PSAVE or FCM mode

Protection

• Over-voltage and under-voltage

• TC compensated R_DS(ON)sensed current limit

• Thermal Shutdown

Additional features include a programmable soft-start,

programmable cycle-by-cycle over-current limit protec-

tion, under-voltage and over-voltage protection, soft

shutdown, and selectable power save. The device also

provides separate enable inputs for the PWM controller

and LDO as well as a power good output for the PWM

controller.



Output Capacitor Types

• High ESR — SP, POSCAP, OSCON

• Ceramic capacitors

Package

• Lead-free package — 5x5mm, 32-Pin MLPQ

• RoHS/WEEE compliant and Halogen free

Applications

The wide input range and programmable frequency make

the device extremely ﬂexible and easy to use in a broad

range of applications.



Networking and telecommunication equipment

Printers, DSL, and STB applications

Embedded systems and power supply modules

Point of load power supplies

Typical Application Circuit

EN/PSV

ILIM

ENABLE/PSAVE

ENABLE LDO

RILIM

ENL

TON

LXS

RTON

PGOOD

VOUT

PGOOD

VOUT

10Ω

SC401B

VDD

VEXT/LDO

1µF

CSOFT

COUT

RFB1

RFB2

BST

VIN

LXBST

AGND

PGND

CIN

CBST

Rev. 2.1

12 3 4 5 6 7...32

中文翻译

下载PDF

与SC401B相关器件

型号	品牌	获取价格	描述	数据表
SC4020FH	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-100	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-101	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-150	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-1R0	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-1R5	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-220	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-2R2	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-2R8	BEL	获取价格	SMD POWER INDUCTORS Open frame construction
SC4020FH-330	BEL	获取价格	SMD POWER INDUCTORS Open frame construction

与SC401B相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

46
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

63
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

60

产品中心

服务支持

精选活动

关于我们

帮助中心

SC401B

SC401B 数据手册

与SC401B相关器件

与SC401B相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SC401B

SC401B 数据手册

与SC401B相关器件

与SC401B相关文章

您还可以找

您在本页遇到什么问题？