AP3005 - BCD Semiconductor

AP3005 2A 420kHz PWM BUCK DC-DC CONVERTER

The AP3005 is a 420kHz fixed frequency PWM buck (step-down) DC-DC converter, capable of driving a 2A load with high efficiency, low ripple and excellent line and load regulation. The device includes a voltage reference, an oscillation circuit, an error amplifier, an internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from.

Features

• 2A Constant Output Current
• 130mΩ RDSON Internal Power MOSFET Switch
• Up to 94% Efficiency
• Fixed 420kHz Frequency
• Wide 4.75V to 25V Input Voltage Range
• Output Voltage Adjustable from 0.8V to 21V
• Built in Thermal Shutdown Function
• Built-in Current Limit Function
• Built-in Soft-Start Function
• Support Ceramic or Electrolytic Capacitors Applications
• Portable DVD
• LCD Monitor/LCD TV
• Digital Photo Frame
• ADSL
• Set-up Box The AP3005 is available in SOIC-8 package. Mar. 2011 Rev. 1. 4 SOIC-8 Figure 1. Package Type of AP3005 BCD Semiconductor Manufacturing Limited 1 2A 420kH.