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English1.5A的电流宽输入电压2.3V至6V励磁涌流限制及软起动CXSD62317双高效脉冲宽度调制PWM降压DC转换器
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产品概述 返回TOP
The CXSD62317 is a dual high-efficiency Pulse-Width-Modulated (PWM) step-down DC/DC
converter. It is capable of delivering 1.5A output current over a wide input voltage range from
2.3V to 6V, the CXSD62317 is ideally suited for portable electronic devices that are powered
from 1-cell Li-ion battery or from other power sources within the range such as cellular phones,
PDAs and other handheld devices. Two operational modes are available. PWM/Low-Dropout
auto-switch and shutdown modes. Internal synchronous rectifier with low RDS(ON) dramatically
reduces conduction loss at PWM mode. No external Schottky diode is required in practical
application. The CXSD62317 enters Low-Dropout mode when normal PWM cannot provide
regulated output voltage by continuously turning on the upper PMOS. The CXSD62317 enter
shutdown Mode And consumes less than 0.1μA when EN pin is pulled low.
产品特点 返回TOP
High Efficiency: Up to 96%
1.5MHz Constant Frequency Operation
1.5A Output Current
No Schottky Diode Required
2.3V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
Low Quiescent Current: 35μA
Thermal Fault Protection
Inrush Current Limit and Soft Start
<1μA Shutdown Current
Small 12-Lead WDFN package
应用范围 返回TOP
Cellular and Smart Phones
Personal Information Appliances
Wireless and DSL Modems
MP3 Players
Digital Still and Video Cameras
技术规格书（产品PDF) 返回TOP
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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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