The CXSD6122 is a 1.5MHz constant frequency, slope compensated current
mode PWM stepdown converter. The device integrates a main switch and a
synchronous rectifier for high efficiency without an external Schottky
diode. It is ideal for powering portable equipment that runs from a
single cell lithium-Ion (Li+) battery. The CXSD6122 can supply 800mA
of load current from a 2.0V to 5.5V input voltage. The output voltage
can be regulated as low as 0.6V. The CXSD6122 can also run at 100% duty
cycle for low dropout operation, extending battery life in portable system.
Pulse Skipping Mode operation at light loads provides very low output ripple voltage for noise sensitive applications.
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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）
一.产品概述
The CXSD6122 is a 1.5MHz constant frequency, slope compensated current
mode PWM stepdown converter. The device integrates a main switch and a
synchronous rectifier for high efficiency without an external Schottky
diode. It is ideal for powering portable equipment that runs from a
single cell lithium-Ion (Li+) battery. The CXSD6122 can supply 800mA
of load current from a 2.0V to 5.5V input voltage. The output voltage
can be regulated as low as 0.6V. The CXSD6122 can also run at 100% duty
cycle for low dropout operation, extending battery life in portable system.
Pulse Skipping Mode operation at light loads provides very low output ripple voltage for noise sensitive applications.
The CXSD6122 is offered in a low profile (1mm) 5-pin, SOT package, and is
available in an adjustable version and fixed output voltage of 1.2V, 1.5V
and 1.8V.
二.产品特点
• High Efficiency: Up to 96%
• 1.5MHz Constant Switching Frequency
• 800mA Output Current at VIN=5V
• Integrated Main switch and synchronous rectifier. No Schottky Diode Required
• 2.0V to 5.5V Input Voltage Range
• Output Voltage as Low as 0.6V
• 100% Duty Cycle in Dropout
• Low Quiescent Current: 270μA
• Slope Compensated Current Mode Control for Excellent Line and Load Transient Response • Short Circuit Protection
• Thermal Fault Protection
•<1μA Shutdown Current
• Space Saving 5-Pin SOT23 package Output voltage adjustable(输出电压可调）
三.应用范围
• Cellular and Smart Phones
• Microprocessors and DSP Core Supplies
• Wireless and DSL Modems
• PDAs
• MP3 Player
• Digital Still and Video Cameras
• Portable Instruments
四.技术规格书（产品PDF)
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
六.电路原理图
七.相关芯片选择指南
| 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 |
