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LT3462 Datasheet

LT3462 Datasheet

Inverting 1.2MHz DC/DC Converters with Integrated Schottky
Part No.: LT3462
Page: 12 Pages
Size: 432 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-12-29 13:41:25
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LT3462 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT3462ES6#PBF Tube   LTBBV 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LT3462ES6#TRPBF Reel 2500 LTBBV 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LT3462ES6#TRMPBF Reel 500 LTBBV 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT3462 Datasheet(PDF)

LT3462 Datasheet(Picture)

LT3462 Features

  • Integrated Schottky Rectifier
  • Fixed Frequency 1.2MHz 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 (40Ω) 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

LT3462 Applications

  • CCD Bias
  • LCD Bias
  • GaAs FET Bias
  • General Purpose Negative Voltage Supply

LT3462 Description

The LT3462 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. These high speeds enable the use of tiny, low cost and low height capacitors and inductors.

The LT3462 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.

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