LN8105 - natlinear

LN8105 4.0A / 23V Step-Down Converter

LN8105 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc. LN8105 provides low-ripple power, high efficiency,and excellent transient characteristics. The PWM control circuit is able to very the duty ratio linearly from 0 up to 100%. This con.

Features

as low current consumption. Since this converter can accommodate an input voltage up to 23V, it is also suitable for the operation via an AC adapter.
■ Features
 Input voltage: 4.2V to 23V.
 Output voltage: 0.8V to VIN.
 Duty ratio: 0% to 100% PWM control
 Oscillation frequency: 300KHz typ.
 Soft-start, Current limit, Enable function
 Thermal Shutdown function
 Built-in internal P-channel MOS
 SOP-8 Package.
■ Applications
 PC Motherboard
 LCD Monitor
 Graphic Card
 DVD-Video Player
 Telecom Equipment
 ADSL Modem
 Printer and other Peripheral Equipment
 Microprocessor core sup.