NCP3101C Datasheet | onsemi

NCP3101C Wide Input Voltage Synchronous Buck Converter The NCP3101C is a high efficiency, 6 A DC- DC buck converter designed to operate from a 5 V to 12 V supply. The device is capable of producing an output voltage as low as 0.8 V. The NCP3101C can continuously output 6 A through MOSFET switches driven by an internally set 275 k Hz oscillator. The 40- pin device provides an optimal level of integration to reduce size and cost of the power supply. The NCP3101C also incorporates an externally pensated transconductance error amplifier and a capacitor programmable soft- start function. Protection Features include programmable short circuit protection and input under voltage lockout (UVLO). The NCP3101C is available in a 40- pin QFN package. Features http://onsemi. MARKING DIAGRAM QFN40, 6x6 CASE 485AK 1 40 A WL YY WW G NCP3101C AWLYYWWG - - - - - - - - - - - - Split Power Rail 2.7 V to 18 V on PWRVCC 275 k Hz Internal Oscillator Greater Than 90% Max Efficiency Boost Pin Operates to 35 V Voltage Mode PWM Control 0.8 V $1% Internal Reference Voltage Adjustable Output Voltage Capacitor Programmable Soft- Start 85% Max Duty Cycle Input Undervoltage Lockout Resistor Programmable Current Limit These are Pb- Free Devices = Assembly Location = Wafer Lot = Year = Work Week = Pb- Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 24 of this data sheet. Applications - Servers / Networking - DSP and FPGA Power Supply - DC- DC Regulator Modules D1 CBST CPHS BST PWRVCC PWRPHS PWRVCC PWRPHS EP (EP) VCC PWRGND CVCC BG P/DIS RSET CP FC AGND (EP) PWRGND (EP) FB AGND R2 LO CO R1 100 95 90 EFFICIENCY (%) 85 80 75 70 65 60 55 50 0 1 2 VIN = 5 V VIN = 12 V VOUT = 3.3 V IOUT (A) 3 4 5 6 Figure 1. Typical Application Diagram Figure 2. Efficiency © Semiconductor ponents Industries, LLC, 2011 August, 2011 - Rev. 1 Publication Order Number: NCP3101C/D VCC 13 FB 16 POR UVLO BST 24...