SC403B

更新时间： 2024-01-11 18:36:20

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	846K
描述
6A EcoSpeedÂ® Integrated FET Regulator with Programmable LDO

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中文翻译

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技术参数
数据手册

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SC403B 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	QFN	包装说明：	HVQCCN,
针数：	32	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.73	其他特性：	ALSO OPERATES AS LDO REGULATOR
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	28 V	最小输入电压：	3 V
标称输入电压：	12 V	JESD-30 代码：	S-XQCC-N32
长度：	5 mm	功能数量：	1
端子数量：	32	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流：	7.2 A
标称输出电压：	5 V	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
座面最大高度：	1 mm	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	1000 kHz
温度等级：	AUTOMOTIVE	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	5 mm
Base Number Matches：	1

SC403B 数据手册

SC403B

6A EcoSpeed^®Integrated FET

Regulator with Programmable LDO

POWER MANAGEMENT

Features

Description



Power System:

The SC403B is a stand-alone synchronous EcoSpeed buck

• Input voltage — 3V to 28V

power supply which incorporates Semtech’s advanced

patented adaptive on-time control architecture. It 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.

• Internal or external bias voltage — 3V to 5.5V

• Reference Voltage — 600mV

• Integrated bootstrap switch

• Programmable LDO output — 200mA

• 1% reference tolerance -40 to +85 °C

• EcoSpeed architecture with pseudo-ﬁxed fre-

quency adaptive on-time control

Logic Input/Output Control:

The SC403B supports using standard capacitor types such

as electrolytic or special 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.



• Independent control EN for LDO and switcher

• Programmable V_INUVLO threshold

• Power good output

• Selectable power save mode

• Programmable soft start time

Protections:

Additional features include a programmable soft-start,

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

tion, under and over-voltage protections, soft shutdown,

and selectable power-save. The device also provides sep-

arate enable inputs for the PWM controller and LDO as

well as a power good output for the PWM controller.

• Over-voltage and under-voltage

• TC compensated R_DS(ON)sensed current limit

• Thermal shutdown



Any ESR — SP, POSCAP, OSCON, and ceramic capacitors

Package:

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

• Fully RoHS/WEEE compliant and halogen-free

The wide input and bias voltage ranges, programmable

frequency, and programmable LDO make the device

extremely flexible and easy to use in a broad range of

applications. The SC403B can be used in server computers

and single cell or multi-cell battery systems in addition to

traditional DC power supply applications.

Applications



Oﬃce automation and computing

Networking and telecommunication equipment

Point of load power supplies and module replacement

Typical Application Circuit

ENABLE/PSAVE

RILIM

LXS

ENL

TON

ENABLE LDO

RTON

PGOOD

VOUT

PGOOD

VOUT

10Ω

VDD

VEXT/LDO

SC403B

1µF

CSOFT

COUT

RFB1

RFB2

BST

VIN

CIN

CBST

US Patent: 2010/0033215A1

Rev. 2.1

12 3 4 5 6 7...32

中文翻译

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与SC403B相关器件

型号	品牌	获取价格	描述	数据表
SC403BMLTRT	SEMTECH	获取价格	Switching Regulator, 7.2A, 1000kHz Switching Freq-Max, 5 X 5 MM, HALOGEN FREE AND ROHS COM
SC403EVB	SEMTECH	获取价格	6A EcoSpeedTM Integrated FET Regulator with Programmable LDO
SC403MLTRT	SEMTECH	获取价格	6A EcoSpeedTM Integrated FET Regulator with Programmable LDO
SC4040	SEMTECH	获取价格	PRECISION SHUNT VOLTAGE REFERENCE
SC4040AS	SEMTECH	获取价格	PRECISION SHUNT VOLTAGE REFERENCE
SC4040AS.TR	SEMTECH	获取价格	Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO8, SOP-8
SC4040ASK	SEMTECH	获取价格	PRECISION SHUNT VOLTAGE REFERENCE
SC4040ASK.TRT	SEMTECH	获取价格	Two Terminal Voltage Reference, 1 Output, 2.5V, PDSO3, SOT-23, 3 PIN
SC4040ASKT	SEMTECH	获取价格	Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO3, SOT-23, 3 PIN
SC4040ASKTR	SEMTECH	获取价格	Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, BIPolar, PDSO3, SOT-23, 3

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