CXSD6269

CXSD6269空载供电电流为22_A,停机时降至<1_A。脉冲宽度调制(pulse width modulation)操作为噪声敏感应用提供非常低的输出纹波电压。100%的占空比能力提供低辍学操作,延长电池寿命在便携式系统

CXSD6269恒定频率电流模式架构的高效单片同步降压调节器2.7V到5.5V的输入电压适合单锂离子电池供电

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产品简介

                          目录qit嘉泰姆

   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)qit嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品qit嘉泰姆

一.产品概述qit嘉泰姆


    The CXSD6269 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The 2.7V to 5.5V input voltage range makes the CXSD6269 ideally suited for single Li-Ion battery-powered applications. Supply current with no load is 22ȝA, dropping to<1ȝA in shut-down. PWM (Pulse Width Modulation) operation provides very low output ripple voltage for noise sensitive applications. 100% duty cycle capability provides low dropout operation, extending battery life in portable systems.qit嘉泰姆

   The switching frequency is internally set at 1.5MHz, allowing the use of tiny surface mount inductors and capacitors. Low output voltages are easily supported with the 0.6V feedback reference voltage. The CXSD6269 is available in SOT23 package. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode.  qit嘉泰姆

二.产品特点qit嘉泰姆


 Ƶ 600mA Output Currentqit嘉泰姆

 Ƶ High Efficiency: Up to 95%qit嘉泰姆

 Ƶ Tiny 5-Pin SOT23 Packageqit嘉泰姆

 Ƶ 1.5MHz Constant Frequency Operationqit嘉泰姆

 Ƶ 2.7V to 5.5V Input Voltage Rangeqit嘉泰姆

 Ƶ Low Dropout Operation: 100% Duty Cycleqit嘉泰姆

 Ƶ Low Quiescent Current: Only 22ȝA During Operationqit嘉泰姆

 Ƶ Shutdown Mode Draws < 1ȝA Supply Currentqit嘉泰姆

 Ƶ No Schottky Diode Requiredqit嘉泰姆

 Ƶ 0.6V Reference Allows Low Output Voltagesqit嘉泰姆

 Ƶ Overtemperature Protectedqit嘉泰姆

 Ƶ Adjustable Output Voltage.qit嘉泰姆

 Ƶ Current Mode Operation for Excellent Line and Load Transient Responseqit嘉泰姆

三.应用范围qit嘉泰姆


Ƶ Cellular Telephones qit嘉泰姆

Ƶ Personal Information Appliances qit嘉泰姆

Ƶ Wireless and DSL Modemsqit嘉泰姆

Ƶ Digital Still Cameras qit嘉泰姆

Ƶ MP3 Playersqit嘉泰姆

Ƶ Portable Instruments    qit嘉泰姆

四.技术规格书(产品PDF)qit嘉泰姆


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qit嘉泰姆

 QQ截图20160419174301.jpgqit嘉泰姆

五.产品封装图qit嘉泰姆


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六.电路原理图qit嘉泰姆


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七.相关芯片选择指南     更多同类产品......qit嘉泰姆


降压型开关稳压器
Product VIN VOUT IOUT IQ Freq. VFB Efficiency PD(@TA = 25¡ãC) Package
Min Max Min Max Max Typ  Typ Typ  Max Max
(V)  (V)  (mA)  (uA)  (KHz) (V)  % (W) 
CXSD6271 2.7 5.5 1 4 2000 80 1000 0.6 96% 0.5 SOT-23-5L
CXSD6272 3 5.5 1 4 2000 80 1000 0.6 96 0.5 SOT-23-5L
CXSD6270 2.7 5.5 1 4 1200 65 1500 0.6 92 0.5 SOT-23-5L
CXSD6269 2.7 5.5 1 4 600 22 1500 0.6 95 0.5 SOT-23-5L

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