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LR8406 - 1.2MHz Synchronous Boost Converter

Description

NO.

Switch Pin.

Connect an inductor between this pin and VIN.

Features

  • : z Up to 96% Efficiency z True Output Load Disconnect During Shutdown z Delivers 100mA@3.3V from Single AA Cell z Delivers 300mA@5V from Two AA Cells z Delivers 600mA@5V from Single Li Cell z Low Voltage Start-Up: 0.85V z Continuous Switching at Light Loads z Internal Synchronous Rectifier z Current Mode Control with Internal Compensation z 1.2MHz Fixed Frequency Switching z Input Range: 0.5V to 4.5V z Output Range: 2.5V to 4.3V (Up to 5.5V with Schottky) z Logic Controlled Shutdown(.

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Datasheet preview – LR8406

Datasheet Details

Part number LR8406
Manufacturer LRC
File Size 631.62 KB
Description 1.2MHz Synchronous Boost Converter
Datasheet download datasheet LR8406 Datasheet
Additional preview pages of the LR8406 datasheet.

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Full PDF Text Transcription

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1.2A, 1.2MHz Synchronous Boost Converter with Output Disconnect LESHAN RADIO COMPANY, LTD. /5 Series „ INTRODUCTION: The /5 devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery. The boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency, which contain an internal NMOS switch and PMOS synchronous rectifier. The maximum peak current in the boost switch is typically limited to a value of 1.2A. A switching frequency of 1.2MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors.
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