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SC402B

更新时间： 2024-01-10 18:00:53
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 1464K
描述
10A EcoSpeed? Integrated FET Regulator with Programmable LDO

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中文翻译

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SC402B 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, LCC32,.2SQ,20
针数：32Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：2.16
模拟集成电路 - 其他类型：ANALOG CIRCUIT控制模式：VOLTAGE-MODE
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：10 A封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装等效代码：LCC32,.2SQ,20
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认证状态：Not Qualified
座面最大高度：1 mm子类别：Switching Regulator or Controllers
最大供电电压 (Vsup)：28 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：12 V表面贴装：YES
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 mmBase Number Matches：1

SC402B 数据手册

 浏览型号SC402B的Datasheet PDF文件第2页浏览型号SC402B的Datasheet PDF文件第3页浏览型号SC402B的Datasheet PDF文件第4页浏览型号SC402B的Datasheet PDF文件第5页浏览型号SC402B的Datasheet PDF文件第6页浏览型号SC402B的Datasheet PDF文件第7页 
SC402B  
10A EcoSpeed® Integrated FET  
Regulator with Programmable LDO  
POWER MANAGEMENT  
Features  
Description  
®
Power System  
The SC402B is a stand-alone synchronous EcoSpeed buck  
• Input voltage — 3V to 28V  
• Bias voltage — 3V to 5.5V LDO or external  
• Up to 96% peak efficiency  
• Integrated bootstrap switch  
• Programmable LDO output — 200mA  
• Reference tolerance — 1% TJ= -40 to +125 °C  
• Programmable soft start time  
Logic Input/Output Control  
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 SC402B has the same package and pin con-  
figuration as the entire SC40x series for compatibility.  
• Independent EN controls for LDO and switcher  
• Programmable VIN UVLO threshold  
• Power good output  
The SC402B 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 RDS(ON) sensed current limit  
• Thermal Shutdown  
Output Capacitor Types  
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 operation. The  
device also provides separate enable inputs for the PWM  
controller and LDO as well as a power good output for the  
PWM controller.  
• 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 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  
RILIM  
ENL  
TON  
LXS  
ENABLE LDO  
RTON  
PGOOD  
VOUT  
PGOOD  
VOUT  
L1  
10Ω  
SC402B  
VDD  
SS  
VEXT/LDO  
LX  
1µF  
CSOFT  
COUT  
+
RFB1  
RFB2  
BST  
VIN  
FB  
VIN  
CIN  
CBST  
© 2011 Semtech Corporation  
Rev. 2.1  
1
1234567...32

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