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SC2602LEVB PDF预览

SC2602LEVB

更新时间: 2024-01-16 17:20:40
品牌 Logo 应用领域
商升特 - SEMTECH 控制器
页数 文件大小 规格书
14页 463K
描述
Synchronous Voltage Mode Controller for Distributed Power Supply

SC2602LEVB 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:SOIC
包装说明:SOP, SOP14,.25针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.64
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:12.6 V
最小输入电压:4.2 VJESD-30 代码:R-PDSO-G14
JESD-609代码:e3长度:8.65 mm
功能数量:1端子数量:14
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:SOP封装等效代码:SOP14,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:1.75 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:220 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

SC2602LEVB 数据手册

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SC2602L  
Synchronous Voltage Mode Controller  
for Distributed Power Supply  
POWER MANAGEMENT  
Description  
Features  
The SC2602L is low-cost, full featured, synchronous volt-  
age-mode controller designed for use in single ended  
power supply applications where efficiency is of primary  
concern. Synchronous operation allows for the elimina-  
tion of heat sinks in many applications. The SC2602L is  
ideal for implementing DC/DC converters needed to  
power advanced microprocessors in low cost systems,  
or in distributed power applications where efficiency is  
important. Internal level-shift, high-side drive circuitry, and  
preset shoot-through control, allows the use of inexpen-  
sive N-channel power MOSFETs.  
‹ Synchronous operation for high efficiency (95%)  
‹ RDS(ON) current sensing  
‹ Output voltage can be programmed as low as 0.8V  
‹ On-chip power good and OVP functions  
‹ Small size with minimum external components  
‹ Soft Start  
‹ Enable function  
‹ SO-14 package is fully WEEE and RoHS compliant  
Applications  
‹ Microprocessor core supply  
‹ Low cost synchronous applications  
‹ Voltage Regulator Modules (VRM)  
‹ DDR termination supplies  
‹ Networking power supplies  
‹ Sequenced power supplies  
SC2602L features include temperature compensated  
voltage reference, triangle wave oscillator and current  
sense comparator circuitry. Power good signaling, shut-  
down, and over voltage protection are also provided.  
The SC2602L operates at a fixed 200kHz which is for  
optimum compromise between efficiency, external com-  
ponent size, and cost.  
Two SC2602L can be used together to sequence two  
voltage regulators for power up in telecom systems. The  
power good of the first SC2602L connected to the en-  
able of the second SC2602L makes this possible.  
Typical Application Circuit  
V_pullup  
5V IN  
R1  
R2  
R3  
C1  
+
C3  
C2  
U1  
GND  
C4  
C5  
C6  
1
14  
13  
12  
11  
10  
9
SS/SHDN  
VCC  
GND  
2
3
4
5
6
7
PWRGD SS/SHDN  
PWRGD  
OVP  
OVP  
COMP  
SENSE  
BSTH  
R4  
R5  
C7  
OCSET  
PHASE  
DH  
Q1  
Q2  
L1  
12V IN  
BSTL  
C8  
2.5VOUT  
D1  
8
R6  
R7  
PGND  
DL  
SC2602L  
+
C10  
C9  
GND  
R8  
Figure 1. Typical distributed power supply  
Revision: January 05, 2006  
1
www.semtech.com  

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