Product Summary

The LT3462/LT3462A are general purpose fixed frequency current mode inverting DC/DC converters. Both devices feature an integrated Schottky and a low VCESAT switch allowing a small converter footprint and lower parts cost. The LT3462 switches at 1.2MHz while the LT3462A switches at 2.7MHz. These high speeds enable the use of tiny, low cost and low height capacitors and inductors.

The LT3462/LT3462A operate in a dual inductor inverting topology that filters both the input and output currents.Very low output voltage ripple approaching 1mVP-P can be achieved when ceramic capacitors are used. Fixed frequency switching ensures a clean output free from low frequency noise typically present with charge pump solutions.The 40V switch allows a VIN to VOUT differential ofup to 38V for dual inductor topologies.

Both devices provide a low impedance 1.265V reference output to supply the feedback resistor network. A ground referenced, high impedance FB input allows high feedback resistor values without compromising output accuracy.

The LT3462/LT3462A are available in a 6-lead SOT-23package.



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Features

Integrated Schottky Rectifier
Fixed Frequency 1.2MHz/2.7MHz Operation
Very Low Noise: 1mVP-P Output Ripple
Low VCESAT Switch: 270mV at 250mA
±5V at 100mA from 5V Input
±12V at 30mA from 3.3V Input
Low Input Bias Current GND Based FB Input
Low Impedance (40 Ohm) 1.265V Reference Output
High Output Voltage: Up to ±38V
Wide Input Range: 2.5V to 16V
Uses Tiny Surface Mount Components
Low Shutdown Current: <10μA
Low Profile (1mm) SOT-23 (ThinSOT?) Package

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT3462ES6#TRPBF
LT3462ES6#TRPBF


IC REG INV ADJ 0.25A TSOT23-6

Data Sheet

0-2500: $1.34
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LT3420
LT3420

Other


Data Sheet

Negotiable 
LT3420-1
LT3420-1

Other


Data Sheet

Negotiable 
LT3420EDD#PBF
LT3420EDD#PBF


IC PHOTOFLASH CAP CHARGER 10-DFN

Data Sheet

0-363: $1.76
LT3420EDD#TRPBF
LT3420EDD#TRPBF


IC PHOTOFLASH CAP CHARGER 10-DFN

Data Sheet

Negotiable 
LT3420EDD-1#PBF
LT3420EDD-1#PBF


IC PHOTOFLASH CAP CHARGER 10-DFN

Data Sheet

0-363: $1.76
LT3420EDD-1#TRPBF
LT3420EDD-1#TRPBF


IC PHOTOFLASH CAP CHARGER 10-DFN

Data Sheet

0-2500: $1.79