CXSD62325是一种宽输入电压、高效率的有源CC降压DC/DC变换器,工作在CV(恒定输出电压)或CC(恒定输出电流)模式下。CXSD62325由带PWM控制的降压开关调节器组成。该装置包括参考电压源、振荡电路、误差放大器等,具有低纹波功率、高效率和良好的瞬态特性。该PWM控制电路能将占空比线性地形成0~90%。过电流保护功能是建立在外部,它可以设置一个电阻。
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7.相关产品
产品概述 返回TOP
CXSD62325 is a wide input voltage, high efficiency Active CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. CXSD62325 consists of step-down switching regulator with PWM control. The device includes a reference voltage source, oscillation circuit, error amplifier and etc. CXSD62325provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to the duty ratio linearly forms 0 up to 90%. An over current protection function is built outside that it can set by a resistance. An external compensation is easily to system stable; the low ESR output capacitor can be used. With the addition of an internal N-channel Power MOS, a coil, capacitors, and a diode connected externally, these ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devices when coupled with the PSOP-8 packages, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage up to 36V
产品特点 返回TOP
 Input Voltage:8V to 36V
 Vout Accuracy (VFB=1V) ±2%
 CC/CV mode(Constant Current and Constant Voltage)
 Up to 2.8A output current
 ±3%/±5%/15%Current limit Accuracy
 Duty ratio:0% to 90% PWM control
 Oscillation frequency:250KHz
 Thermal Shutdown function.
 Short Circuit Protect (SCP).
 Built-in internal LX N-channel MOS.
 Current mode non-synchronous PWM converter
 External current limit setting.
 Over Voltage Protection5.8V.
 Built in adjustable line-compensation.
 PSOP-8 Pb-Free package
应用范围 返回TOP
 Car charger
 Portable charger Device.
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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			 Buck DC/DC Converter  | 
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| 
			 Product  | 
			
			 Status  | 
			
			 Device Description  | 
			
			 VIN(min~max)  | 
			
			 VOUT  | 
			
			 IOUT  | 
			
			 IQ(typ)  | 
			
			 Vfb  | 
			
			 Frequency  | 
			
			 Pkg  | 
		
| 
			 Active  | 
			
			 40V/1.5A非同步降压  | 
			
			 3~36V  | 
			
			 ADJ  | 
			
			 1.5A  | 
			
			 4mA  | 
			
			 1.25V  | 
			
			 <100KHZ  | 
			
			 DIP8 SOP8  | 
		|
| 
			 Active  | 
			
			 30V/2A同步降压  | 
			
			 4.5~27V  | 
			
			 0.925~20Vin  | 
			
			 2A  | 
			
			 1.3mA  | 
			
			 0.925V  | 
			
			 340KHZ  | 
			
			 SOP8 PSOP8  | 
		|
| 
			 Active  | 
			
			 30V/2A同步降压  | 
			
			 4.5~27V  | 
			
			 0.925~20Vin  | 
			
			 3A  | 
			
			 1.3mA  | 
			
			 0.925V  | 
			
			 340KHZ  | 
			
			 PSOP8  | 
		|
| 
			 NEW  | 
			
			 40V/4.5A同步降压/线补/CC/CV/OC  | 
			
			 7~40V  | 
			
			 5V  | 
			
			 4.5A  | 
			
			 1.5mA  | 
			
			 5V  | 
			
			 150KHZ  | 
			
			 PSOP8  | 
		|
| 
			 Active  | 
			
			 5V/2A同步降压  | 
			
			 2.5~5V  | 
			
			 ADJ  | 
			
			 2A  | 
			
			 20uA  | 
			
			 0.6V  | 
			
			 1.5MHZ  | 
			
			 SOT23-5  | 
		|
| 
			 Active  | 
			
			 5V/1.4A同步降压  | 
			
			 2.5~5V  | 
			
			 ADJ  | 
			
			 1.4A  | 
			
			 25uA  | 
			
			 0.6V  | 
			
			 1.5MHZ  | 
			
			 SOT23-5  | 
		|
| 
			 NRFND  | 
			
			 40V/2.8A非同步降压/CC/CV  | 
			
			 8~36V  | 
			
			 ADJ  | 
			
			 2.8A  | 
			
			 2mA  | 
			
			 1V  | 
			
			 250KHZ  | 
			
			 PSOP8  | 
		|
| 
			 Active  | 
			
			 5V/3A同步降压  | 
			
			 3.3~18V  | 
			
			 ADJ  | 
			
			 2A  | 
			
			 10uA  | 
			
			 0.6V  | 
			
			 1.5MHZ  | 
			
			 SOT23-6\  | 
		|



