Single Buck Voltage Mode PWM Controller CXMD3256 is a voltage mode, fixed 200kHz/300kHz/600kHz switching frequency,synchronous buck converter. CXSD6296 allows wide input voltage that is either a

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The CXMD3256 is a voltage mode, fixed 200kHz/300kHz/600kHz switching frequency,synchronous buck converter. The CXSD6296 allows wide input voltage that is either a single 5~1 2V or two supply voltage(s) for various applications. A power-on-reset (POR) circuit monitors the VCC supply voltage to prevent wrong logic controls. Abuilt- in soft-start circuit prevents the output voltages from over- shoot as well as limits the input current. An internal 0.6V/0.8V Temperature-compensated reference voltage with high accuracy is designed to meet the requirement of low out- put voltage applications. The CXSD6296 provides excel- lent output voltage regulations against load current variation. The controller’s over-current protection monitors the out- put current by using the voltage drop across the RDS (ON) of low-side MOSFET, eliminating the need for a cur- rent sensing resistor that features high efficiency and low cost. In addition, the CXMD3256 also integrates excel- lent protection functions. The over-voltage protection (OVP), under-voltage protection (UVP). OVP circuit which monitors the FB voltage to prevent the PWM output from over voltage, and UVP circuit which monitors the FB voltage to prevent the PWM output from under voltage or short circuit.The CXMD3256 is available in SOP-8P packages

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Wide 5V to 12V Supply Voltagefr4嘉泰姆

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Power-On-Reset Monitoring on VCCfr4嘉泰姆

Excellent Output Voltage Regulationsfr4嘉泰姆

0.6V Internal Reference for CXMD3256/A/Dfr4嘉泰姆

0.8V Internal Reference for CXMD3256B/Cfr4嘉泰姆

±0.6% Over-Temperature Rangefr4嘉泰姆

Integrated Soft-Startfr4嘉泰姆

Voltage Mode PWM Operation with External Compensationfr4嘉泰姆

Up to 90%DutyRatio for Fast Transient Responsefr4嘉泰姆

Constant Switching Frequencyfr4嘉泰姆

300kHz ±10% for CXMD3256/Bfr4嘉泰姆

200kHz ±10% for CXMD3256Cfr4嘉泰姆

600kHz ±10% for CXMD3256A/Dfr4嘉泰姆

Integrated Bootstrap Forward P-CH MOSFETfr4嘉泰姆

50%Under-Voltage Protectionfr4嘉泰姆

125%Over-Voltage Protectionfr4嘉泰姆

Adjustable Over-Current Protection Thresholdfr4嘉泰姆

Using the RDS(ON) of Low-Side MOSFETfr4嘉泰姆

Shutdown Control byCOMPfr4嘉泰姆

SOP-8P Packagefr4嘉泰姆

Lead Free and Green Devices Availablefr4嘉泰姆

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