LT3505

PRODUCTION

1.2A, Step-Down Switching Regulator in 3mm × 3mm DFN

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $2.90
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Part Details

  • Wide Input Range: 3.6V to 36V Operating, 40V Maximum
  • Up to 1.2A Output Current
  • Resistor-Programmable Fixed-Frequency Operation from 200kHz to 3MHz
  • Output Adjustable Down to 780mV
  • Short-Circuit Robust
  • Uses Tiny Capacitors and Inductors
  • Soft-Start
  • Low Shutdown Current: <2µA
  • Low VCESAT Switch: 350mV at 1A
  • Thermally Enhanced, Low Profile 3mm x 3mm DFN-8 and MSOP-8 Packages
LT3505
1.2A, Step-Down Switching Regulator in 3mm × 3mm DFN
750kHz, 3.3V Step-Down Converter Efficiency Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Digital Power System Managers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Dual-Supply Monitors 1
LTC2960
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PowerPath, Ideal Diodes, and Load Switches 1
LTC4359
RECOMMENDED FOR NEW DESIGNS Ideal Diode Controller with Reverse Input Protection
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
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Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

  • LT3505
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC1395A

LT3505 HV Buck Regulator Board with Plug-in Interface

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Product Details

DC1395A: Demo Board for LT3505 1.2A, Step-Down Switching Regulator in 3mm × 3mm DFN

eval board
schematic 2
DC1023A

LT3505EDD Demo Board | 6V ≤ VIN ≤ 36V, VOUT = 5V @ 1A

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Product Details

Demo circuit DC1023A is a monolithic step-down DC/DC switching regulator featuring the LT3505. The demo circuit is designed for a 5V/1A output from a 6V to 36V input.


 
DC1395A
LT3505 HV Buck Regulator Board with Plug-in Interface
DC1395A - Schematic
DC1023A
LT3505EDD Demo Board | 6V ≤ VIN ≤ 36V, VOUT = 5V @ 1A
DC1023A - Schematic

Latest Discussions

3 Years Ago
RE: defect LT3505
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