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

产品手册

产品订购

产品简介

                          目录a70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)a70嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品a70嘉泰姆

一.产品概述a70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.a70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.  a70嘉泰姆

二.产品特点a70嘉泰姆


 Ƶ 600mA Output Currenta70嘉泰姆

 Ƶ High Efficiency: Up to 95%a70嘉泰姆

 Ƶ Tiny 5-Pin SOT23 Packagea70嘉泰姆

 Ƶ 1.5MHz Constant Frequency Operationa70嘉泰姆

 Ƶ 2.7V to 5.5V Input Voltage Rangea70嘉泰姆

 Ƶ Low Dropout Operation: 100% Duty Cyclea70嘉泰姆

 Ƶ Low Quiescent Current: Only 22ȝA During Operationa70嘉泰姆

 Ƶ Shutdown Mode Draws < 1ȝA Supply Currenta70嘉泰姆

 Ƶ No Schottky Diode Requireda70嘉泰姆

 Ƶ 0.6V Reference Allows Low Output Voltagesa70嘉泰姆

 Ƶ Overtemperature Protecteda70嘉泰姆

 Ƶ Adjustable Output Voltage.a70嘉泰姆

 Ƶ Current Mode Operation for Excellent Line and Load Transient Responsea70嘉泰姆

三.应用范围a70嘉泰姆


Ƶ Cellular Telephones a70嘉泰姆

Ƶ Personal Information Appliances a70嘉泰姆

Ƶ Wireless and DSL Modemsa70嘉泰姆

Ƶ Digital Still Cameras a70嘉泰姆

Ƶ MP3 Playersa70嘉泰姆

Ƶ Portable Instruments    a70嘉泰姆

四.技术规格书(产品PDF)a70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a70嘉泰姆

 QQ截图20160419174301.jpga70嘉泰姆

五.产品封装图a70嘉泰姆


blob.png  a70嘉泰姆

六.电路原理图a70嘉泰姆


blob.png   a70嘉泰姆

七.相关芯片选择指南     更多同类产品......a70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

◀ 上一篇:CXSD6270高效同步降压DC-DC转换器2.7v至5.5v的宽输入电压脉冲跳过调制(PSM)100%的占空比

返回顶部

下一篇▶:CXSU6397固定工作频率的电流模式控制的的同步降压转换芯片消耗1uA 600mA的输出能力2.5V 到 5.5V 的输入