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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
发表时间:2020-04-19浏览次数:77
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
 

                          目录n3e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)n3e嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品n3e嘉泰姆

一.产品概述n3e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.n3e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.  n3e嘉泰姆

二.产品特点n3e嘉泰姆


 Ƶ 600mA Output Currentn3e嘉泰姆

 Ƶ High Efficiency: Up to 95%n3e嘉泰姆

 Ƶ Tiny 5-Pin SOT23 Packagen3e嘉泰姆

 Ƶ 1.5MHz Constant Frequency Operationn3e嘉泰姆

 Ƶ 2.7V to 5.5V Input Voltage Rangen3e嘉泰姆

 Ƶ Low Dropout Operation: 100% Duty Cyclen3e嘉泰姆

 Ƶ Low Quiescent Current: Only 22ȝA During Operationn3e嘉泰姆

 Ƶ Shutdown Mode Draws < 1ȝA Supply Currentn3e嘉泰姆

 Ƶ No Schottky Diode Requiredn3e嘉泰姆

 Ƶ 0.6V Reference Allows Low Output Voltagesn3e嘉泰姆

 Ƶ Overtemperature Protectedn3e嘉泰姆

 Ƶ Adjustable Output Voltage.n3e嘉泰姆

 Ƶ Current Mode Operation for Excellent Line and Load Transient Responsen3e嘉泰姆

三.应用范围n3e嘉泰姆


Ƶ Cellular Telephones n3e嘉泰姆

Ƶ Personal Information Appliances n3e嘉泰姆

Ƶ Wireless and DSL Modemsn3e嘉泰姆

Ƶ Digital Still Cameras n3e嘉泰姆

Ƶ MP3 Playersn3e嘉泰姆

Ƶ Portable Instruments    n3e嘉泰姆

四.技术规格书(产品PDF)n3e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n3e嘉泰姆

 QQ截图20160419174301.jpgn3e嘉泰姆

五.产品封装图n3e嘉泰姆


blob.png  n3e嘉泰姆

六.电路原理图n3e嘉泰姆


blob.png   n3e嘉泰姆

七.相关芯片选择指南     更多同类产品......n3e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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