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SC4501MLTRT PDF预览

SC4501MLTRT

更新时间: 2024-11-26 04:05:23
品牌 Logo 应用领域
商升特 - SEMTECH 调节器开关软启动
页数 文件大小 规格书
21页 617K
描述
2Amp, 2MHz Step-Up Switching Regulator with Soft-Start

SC4501MLTRT 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:HVSON, SOLCC10,.12,20针数:10
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.8
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:16 V
最小输入电压:1.4 V标称输入电压:2 V
JESD-30 代码:S-PDSO-N10JESD-609代码:e3
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:10
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:2.8 A封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装等效代码:SOLCC10,.12,20
封装形状:SQUARE封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BOOST
最大切换频率:2000 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 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 mm
Base Number Matches:1

SC4501MLTRT 数据手册

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SC4501  
2Amp, 2MHz Step-Up Switching  
Regulator with Soft-Start  
POWER MANAGEMENT  
Features  
Description  
The SC4501 is a high-frequency current-mode step-up  
switching regulator with an integrated 2A power transis-  
tor. Its high switching frequency (programmable up to  
2MHz) allows the use of tiny surface-mount external pas-  
sive components. Programmable soft-start eliminates high  
inrush current during start-up. The internal switch is rated  
at 32V making the converter suitable for high voltage ap-  
plications such as Boost, SEPIC and Flyback.  
u Low saturation voltage switch: 220mV at 2A  
u Constant switching frequency current-mode control  
u Programmable switching frequency up to 2MHz  
u Soft-Start function  
u Input voltage range from 1.4V to 16V  
u Output voltage up to 32V  
u Low shutdown current  
u Adjustable undervoltage lockout threshold  
u Small low-profile thermally enhanced packages  
The operating frequency of the SC4501 can be set with an  
external resistor. The ability to set the operating frequency  
gives the SC4501 design flexibilities. A dedicated COMP  
pin allows optimization of the loop response. The SC4501  
is available in thermally enhanced 8-Pin MSOP and 10-pin  
MLPD packages.  
Applications  
u Flat screen LCD bias supplies  
u TFT bias supplies  
u XDSL power supplies  
u Medical equipment  
u Digital video cameras  
u Portables devices  
u White LED power supplies  
Typical Application Circuit  
D1  
L1  
VOUT  
VIN  
5V  
12V, 0.7A  
10BQ015  
R1  
174K  
6
5
Efficiency  
IN  
SHDN  
SC4501  
SW  
FB  
95  
3
8
2
1
OFF ON  
10.5mH, 700KHz  
4.7mH, 1.4MHz  
C2  
10mF  
C1  
2.2mF  
90  
85  
80  
75  
70  
65  
60  
55  
50  
SS  
GND  
COMP  
ROSC  
R2  
20K  
R3  
C4  
C3  
47nF  
4
7
C6  
R4  
3.3mH, 2MHz  
All Capacitors are Ceramic.  
MSOP-8 Pinout  
f / MHz R3 / KW R4 / KW C4 / pF C6 / pF  
L1 / mH  
VIN = 5V  
VOUT = 12V  
0.7  
1.35  
2
22.1  
30.9  
63.4  
22.1  
9.31  
4.75  
2200  
820  
-
-
10.5 (Falco D08019)  
4.7 (Falco D08017)  
0.0  
0.1  
0.2  
0.3  
0.4  
0.5  
0.6  
0.7  
Load Current (A)  
470  
22  
3.3 (Coilcraft DO1813P)  
Figure 1(a). 5V to 12V Boost Converter.  
Figure 1(b). Efficiencies of 5V to 12V Boost Converters at  
700KHz, 1.4MHz and 2MHz.  
Revision: October 25, 2005  
1
www.semtech.com  

SC4501MLTRT 替代型号

型号 品牌 替代类型 描述 数据表
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