Linear Technology LT3480 Switching Regulator Datasheet

This product is a 36V, 2A, 2.4MHz step-down switching regulator with 70µA quiescent current.


Linear Technology LT3480 Switching Regulator Datasheet - cover page
Brand
Linear Technology
Document type
Datasheet
Language
English
Pages
24
File format
PDF
File size
305 KB
Published
09 April, 2012
Updated
30 September, 2023
Model
LT3480
MD5 checksum
5D490B2B267CF613B1A5EC8B8B5CAAB9

About this manual

The LT3480 is a monolithic buck switching regulator that operates from 3.6 V to 36 V input and delivers up to 2 A output current. It features an adjustable switching frequency from 200 kHz to 2.4 MHz, a 0.79 V feedback reference, and a low quiescent current of 70 pA at 12 V input. Burst‑mode operation reduces input current to about 70 µA under light load.

Typical applications include automotive battery regulation, power for portable products, distributed supply regulation, and industrial supplies. The device is available in 10‑lead MSOP, 10‑lead MSE, and 3 mm × 3 mm DFN packages with exposed pads for thermal management.

What's inside

  • Features
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Typical Performance Characteristics
  • Pin Functions
  • Operation
  • Package Description
  • Typical Application

Specifications

Input Voltage Range3.6 V to 36 V
Maximum Output Current2 A
Feedback Reference Voltage0.790 V
Quiescent Current70 pA (typical at 12 V IN)
Adjustable Switching Frequency200 kHz to 2.4 MHz

Frequently asked questions

What is the input voltage range of the LT3480?

The LT3480 operates from a minimum of 3.6 V up to 36 V input.

How much output current can the LT3480 provide?

It can deliver up to 2 A of output current.

What is the quiescent current of the LT3480 at 12 V input?

The quiescent current is about 70 pA.

What is the feedback reference voltage for regulation?

The internal reference voltage on the FB pin is 0.790 V.

Download PDF (305 KB)

More Linear Technology Manuals


View all Linear Technology manuals →