LTC3126 Datasheet 2.5a Synchronous Step-down Regulator

Manufacturer: Linear Technology (now Analog Devices)

Datasheet Details

Part number	LTC3126
Manufacturer	Linear Technology (now Analog Devices)
File Size	1.97 MB
Description	2.5A Synchronous Step-Down Regulator
Datasheet	LTC3126-Linear.pdf

General Description

The LTC®3126 is a high efficiency synchronous buck converter with an internal no-loss PowerPath™ supporting seamless operation from two separate input power sources.

Pin-selectable ideal diode-OR and priority input modes with user programmable undervoltage lockout thresholds provide full control over the transition between the input power sources.

The fast, automatic switchover provided by the internal PowerPath eliminates the need for hold-up capacitors and minimizes disturbances on the output rail.

Key Features

n Seamless, Automatic Transition Between Two Input Power Sources n Wide Input Voltage Range: 2.4V to 42V n Wide Output Voltage Range: 0.818V to VIN n Up to 2.5A Continuous Output Current n Pin-Selectable Priority and Ideal Diode-OR Modes n Burst Mode® Operation, IQ = 2µA n 95% Efficiency at 1A, VIN = 12V, VOUT = 5V n 1µA Current in Shutdown n Programmable Input UVLO Thresholds n Input Valid, Priority Channel and PGOOD Indicators n 200kHz to 2.2MHz Fixed Frequency PWM n Synchronizable to an Exter.

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