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SC4502HMLTRT

更新时间： 2024-09-16 09:33:23
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器开关式稳压器或控制器调节器电源电路开关式控制器软启动光电二极管
页数 文件大小 规格书
19页 407K
描述
1.4Amp, 2MHz Step-Up Switching Regulator with Soft-Start

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SC4502HMLTRT 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：3 X 3 MM, ROHS COMPLIANT, MLPD-10针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：8.04
Is Samacsys：N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 VJESD-30 代码：S-PDSO-N10
JESD-609代码：e3长度：3 mm
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 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）：NOT SPECIFIED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

SC4502HMLTRT 数据手册

 浏览型号SC4502HMLTRT的Datasheet PDF文件第2页浏览型号SC4502HMLTRT的Datasheet PDF文件第3页浏览型号SC4502HMLTRT的Datasheet PDF文件第4页浏览型号SC4502HMLTRT的Datasheet PDF文件第5页浏览型号SC4502HMLTRT的Datasheet PDF文件第6页浏览型号SC4502HMLTRT的Datasheet PDF文件第7页 
SC4502/SC4502H  
1.4Amp, 2MHz Step-Up Switching  
Regulator with Soft-Start  
POWER MANAGEMENT  
Features  
Description  
The SC4502/SC4502H is a high-frequency current-mode ‹ Low saturation voltage switch: 210mV  
step-up switching regulator with an integrated 1.4A  
(250mV for the SC4502H)  
power transistor. Its high switching frequency (program- ‹ Constant switching frequency current-mode control  
mable up to 2MHz) allows the use of tiny surface-mount ‹ Programmable switching frequency up to 2MHz  
external passive components. Programmable soft-start ‹ Soft-Start function  
eliminates high inrush current during start-up. The inter- ‹ Input voltage ranges from 1.4V to 16V  
nal switch is rated at 32V (40V for the SC4502H) mak- ‹ Output voltage up to 32V (40V for the SC4502H)  
ing the converter suitable for high voltage applications ‹ Low shutdown current  
such as Boost, SEPIC and Flyback.  
‹ Adjustable undervoltage lockout threshold  
‹ Small low-profile thermally enhanced lead free  
package. This product is fully WEEE and RoHS  
compliant.  
The operating frequency of the SC4502/SC4502H can  
be set with an external resistor. The ability to set the  
operating frequency gives the SC4502/SC4502H design  
flexibilities. A dedicated COMP pin allows optimization of  
the loop response. The SC4502/SC4502H is available  
in thermally enhanced 10-pin MLPD package.  
Applications  
‹ Flat screen LCD bias supplies  
‹ TFT bias supplies  
‹ XDSL power supplies  
‹ Medical equipment  
‹ Digital video cameras  
‹ Portables devices  
‹ White LED power supplies  
Typical Application Circuit  
D1  
L1  
VIN  
5V  
VOUT  
12V  
10BQ015  
Efficiency  
R1  
8
6,7  
SW  
FB  
866K  
95  
IN  
SHDN  
SC4502  
10.5 H, 700KHz  
H, 1.4MHz  
5.3µ  
3
µ
2
1
OFF ON  
90  
85  
80  
75  
70  
65  
60  
55  
50  
C2  
C1  
2.2µF  
10µF  
10  
SS  
GND  
4,5  
COMP  
ROSC  
R2  
R3  
C4  
100K  
C3  
9
C6  
47nF  
H, 2MHz  
3.3µ  
R4  
All Capacitors are Ceramic.  
VIN = 5V  
VOUT = 12V  
f (MHz) R3 (KΩ) R4 (KΩ) C4 (pF) C6 (pF)  
L1 (µH)  
0.0  
0.1  
0.2  
0.3  
0.4  
0.5  
0.7  
1.4  
2
33.2  
59.0  
73.2  
23.7  
9.53  
5.36  
1500  
560  
-
-
10.5 (Falco D08019)  
5.3 (Sumida CDRH5D28)  
3.3 (Coilcraft DO1813P)  
Load Current (A)  
330  
22  
Figure 1(b). Efficiencies of 5V to 12V Boost Converters at  
700KHz, 1.4MHz and 2MHz.  
Figure 1(a). 5V to 12V Boost Converter.  
Revision: July 25, 2005  
1
www.semtech.com  
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SC4502HMLTRT 替代型号

型号 品牌 替代类型 描述 数据表
SC4502MLTRT SEMTECH

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 1.4Amp, 2MHz Step-Up Switching Regulator with Soft-Start

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