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 Voltagey1U嘉泰姆

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Power-On-Reset Monitoring on VCCy1U嘉泰姆

Excellent Output Voltage Regulationsy1U嘉泰姆

0.6V Internal Reference for CXMD3256/A/Dy1U嘉泰姆

0.8V Internal Reference for CXMD3256B/Cy1U嘉泰姆

±0.6% Over-Temperature Rangey1U嘉泰姆

Integrated Soft-Starty1U嘉泰姆

Voltage Mode PWM Operation with External Compensationy1U嘉泰姆

Up to 90%DutyRatio for Fast Transient Responsey1U嘉泰姆

Constant Switching Frequencyy1U嘉泰姆

300kHz ±10% for CXMD3256/By1U嘉泰姆

200kHz ±10% for CXMD3256Cy1U嘉泰姆

600kHz ±10% for CXMD3256A/Dy1U嘉泰姆

Integrated Bootstrap Forward P-CH MOSFETy1U嘉泰姆

50%Under-Voltage Protectiony1U嘉泰姆

125%Over-Voltage Protectiony1U嘉泰姆

Adjustable Over-Current Protection Thresholdy1U嘉泰姆

Using the RDS(ON) of Low-Side MOSFETy1U嘉泰姆

Shutdown Control byCOMPy1U嘉泰姆

SOP-8P Packagey1U嘉泰姆

Lead Free and Green Devices Availabley1U嘉泰姆

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