Datasheet4U Logo Datasheet4U.com

LT3991

1.2A Step-Down Regulator

LT3991 Features

* n Ultralow Quiescent Current: 2.8µA IQ Regulating 12VIN to 3.3VOUT n Fixed Output Voltages: 3.3V, 5V 2.1µA IQ Regulating 12VIN n Low Ripple Burst Mode® Operation: Output Ripple < 15mVP-P n Wide Input Voltage Range: 4.3V to 55V n 1.2A Maximum Output Current n Adjustable Switching Frequency: 2

LT3991 General Description

The LT®3991 is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 55V. Low quiescent current design consumes only 2.8µA of supply current while regulating with no load. Low ripple Burst Mode operation maintains high efficiency at low output curr.

LT3991 Datasheet (378.56 KB)

Preview of LT3991 PDF

Datasheet Details

Part number:

LT3991

Manufacturer:

Linear Technology

File Size:

378.56 KB

Description:

1.2a step-down regulator.

📁 Related Datasheet

LT3990 350mA Step-Down Regulator (Linear Technology)

LT3990 350mA Step-Down Regulator (Analog Devices)

LT3990-3.3 350mA Step-Down Regulator (Analog Devices)

LT3990-3.3 350mA Step-Down Regulator (Linear)

LT3990-5 350mA Step-Down Regulator (Analog Devices)

LT3990-5 350mA Step-Down Regulator (Linear)

LT3991-3.3 1.2A Step-Down Regulator (Linear)

LT3991-5 1.2A Step-Down Regulator (Linear)

LT3999 1MHz Push-Pull DC/DC Driver (Linear)

LT3905 Boost DC/DC Converter (Linear Technology)

TAGS

LT3991 1.2A Step-Down Regulator Linear Technology

Image Gallery

LT3991 Datasheet Preview Page 2 LT3991 Datasheet Preview Page 3

LT3991 Distributor