1.5MHz的恒流模式双高效率CXSD62318脉冲宽度调制降压转换器100%占空比轻载高效PFM模式 | |||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP The CXSD62318 is a 1.5MHz constant frequency current mode, dual high-efficiencyPWM step-down converter. It is ideal for portable equipment requiring very high current up to 2A each channel from single-cell Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions. The CXSD62318 also can run at 100% duty cycle for low dropout operation,extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications. The CXSD62318 can supply up to 2A output load current each channel from a 2.3V to 6V input voltage and the output voltage can be regulated as low as 0.6V. The high switching frequency minimizes the size of external components while keeping switching losses low.The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation. The device is available in a Pb-free, 8-Lead ESOP package and is rated over the -40°C to +85°C temperature range.This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load. 产品特点 返回TOP
High Efficiency: Up to 96% 1.5MHz Constant Frequency Operation
Dual 2A Output Current No Schottky Diode Required 2.3V to 6V Input Voltage Range Output Voltage as Low as 0.6V PFM Mode for High Efficiency in Light Load 100% Duty Cycle in Dropout Operation Low Quiescent Current: 40μA Short Circuit Protection Thermal Fault Protection Inrush Current Limit and Soft Start <1μA Shutdown Current ESOP8 package 应用范围 返回TOP
Cellular and Smart Phones Wireless and DSL Modems PDAs Portable Instruments Digital Still and Video Cameras Set Top Box 技术规格书（产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 产品封装图 返回TOP
电路原理图 返回TOP
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双输出转降压换器Dual Output Regulator (Power Switch Integrated) |
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Part Number |
Function |
Vin(V) |
Iout |
Fsw |
VREF(V) |
HSFET Ron(Ω) |
LSFET Ron(Ω) |
Special Function |
Package |
|
双通道降压 |
2～6 |
0.8 A |
1.5MHz |
0.6 |
0.35 |
0.3 |
Int SS/Comp |
DFN3x3-10 |
|
|
双通道降压 |
2.3～6 |
1.5 A |
1.5MHz |
0.6 |
0.1 |
0.09 |
Int SS/Comp |
DFN3x3-12 |
|
|
双通道降压 |
2.3～6 |
2 A |
1.5MHz |
0.6 V |
0.1 |
0.09 |
Int SS/Comp |
ESOP8 |
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