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LT3462A Datasheet

LT3462A Datasheet

Inverting 2.7MHz DC/DC Converters with Integrated Schottky
Part No.: LT3462A
Page: 12 Pages
Size: 431 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-12-29 13:45:30
DataSheet: Download

LT3462A Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT3462AES6#PBF Tube   LTBGB 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LT3462AES6#TRPBF Reel 2500 LTBGB 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LT3462AES6#TRMPBF Reel 500 LTBGB 1 6 -40°C ~ 85°C 6-Lead Plastic TSOT-23  
LT3462AEDC#PBF Tube   LHGH 1 8 -40°C ~ 85°C 8-Lead (2mm × 2mm) Plastic DFN  
LT3462AEDC#TRPBF Reel 2500 LHGH 1 8 -40°C ~ 85°C 8-Lead (2mm × 2mm) Plastic DFN  
LT3462AEDC#TRMPBF Reel 500 LHGH 1 8 -40°C ~ 85°C 8-Lead (2mm × 2mm) Plastic DFN  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT3462A Datasheet(PDF)

LT3462A Datasheet(Picture)

LT3462A Features

  • Integrated Schottky Rectifier
  • Fixed Frequency 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 (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
  • 8‑Lead DFN (2mm × 2mm × 0.75mm) Package, LT3462A Only

LT3462A Applications

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

LT3462A Description

The 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 LT3462A switches at 2.7MHz. These high speeds enable the use of tiny, low cost and low height capacitors and inductors.

The 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.

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