ME3148 Description
The ME3148 is a 160KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator.
The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. An internal compensation block is built in to minimize external component count.
ME3148 Features
Input Voltage Range 8V~36V
Maximum output current 3A
Fixed 160KHz Switching Frequency
Output Adjustable from 1.25V to 33V
Minimum Drop Out 0.3V
Internal Optimize Power MOSFET
Excellent line and load regulation
With output constant current loop
Built in OTP,OCP and OVP
Recommend output power less than 13W
ME3148 Applications
Car Charger
Battery Charger
Portable instrument power supply
Buck constant current driver
Monitor LED Backlighting
General purpose LED lighting
ME3148 Package
8-pin ESOP8
ME3148 Typical Application（Constant Voltage Charge）
ME3148 Typical Application（Constant Voltage Constant Current Charge）
ME3148 Typical Application（Constant Current LED Driver ）
ME3148 Selection Guide
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Product Series
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Package
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ME3148ASPG
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ESOP8
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ME3148 Pin Configuration
ME3148 Pin Assignment
ME3148 Block Diagram
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