The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down converter,supply u

The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down converter,supply up to 2A output load current from a 2.5V to 5.5V input voltage and the output voltage can be regulat

                          目录

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载（PDF文档）

   5.产品封装      6.电路原理图     7.相关产品

一.产品概述

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   The CXSD6121 SwitchReg is a 1.5MHz constant fre-quency current mode PWM step-down 

converter. It is ideal for portable equipment requiring very high current up to 2A from single-cell

 Lithium-ion batteries  while still achieving over 90% efficiency during peak load condi-tions. 

The CXSD6121 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 CXSD6121 can supply up to 2A output load current from a 2.5V to 5.5V input voltage

 and the  output voltage can be regulated as low as 0.6V. The high switching fre-quency minimizes

 the size of external components while keeping switching losses low. The internal slope 

compen-sation setting allows  the device to operate with smaller inductor values to optimize

 size and provide efficient operation.

      The CXSD6121 is available with adjustable (0.6V to VIN) output voltage.

二.产品特点

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· Input Voltage Range: 2.5V to 5.5V

· Output Voltages from 0.6V to VIN

· 2A Output Current

· High Efficiency: Up to 96%

· 1.5MHz Constant Switching Frequency

· Low RDS(ON) Internal Switches: 0.13Ω

· Allows Use of Ceramic Capacitors

· Current Mode Operation for Excellent Line and Load Transient Response

· Short-Circuit and Thermal Fault Protection

· Soft Start

· Low Dropout Operation: 100% Duty Cycle

· Low Shutdown Current: ISHUTDOWN < 1μA

· SOP8 Package

· -40°C to +125°C Temperature Range

三.应用范围

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·Cellular Phones

·Digital Cameras

·DSP Core Supplies

·PDAs

·Portable Instruments

·Smart Phones    

四.技术规格书（产品PDF)

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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！

 

五.产品封装图

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六.电路原理图

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七.相关芯片选择指南

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系列名称	输入电压 (V)		输出电压 (V)			最大输出电流 (mA)	特点
	最小	最大	最小	标准	最大
CXSD6118	2.5V	5.5V		可调		2000	PWM同步降压转换器：效率95%以上
CXSD6121	2.5V	5.5V		可调		2000	PWM同步降压转换器：效率95%以上
CXSD6119	2.5V	5.5V		可调		1000	PWM同步降压转换器：效率95%以上
CXSD6122	2.5V	5.5V		可调		800	PWM同步降压转换器：效率95%以上
CXSD6120	2.5V	5.5V	1.75		1.86	600	PWM同步降压转换器：效率95%以上
CXSD6115	2.5V	5.5V	1.75		1.86	600	PWM同步降压转换器：效率95%以上
CXSD6116	2.5V	5.5V		可调		600	PWM同步降压转换器：效率95%以上
CXSD6117	2.5V	5.5V		可调		600	PWM同步降压转换器：效率95%以上