LT3693
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LT3693

36V, 3.5A, 2.4MHz Step-Down Switching Regulator

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $4.59
Features
  • Wide Input Range: 3.6V to 36V
  • 3.5A Maximum Output Current
  • Adjustable Switching Frequency: 200kHz to 2.4MHz
  • Low Shutdown Current: IQ < 1µA
  • Integrated Boost Diode
  • Synchronizable Between 250kHz to 2MHz
  • Power Good Flag
  • Saturating Switch Design: 95mΩ On-Resistance
  • 0.790V Feedback Reference Voltage
  • Output Voltage: 0.79V to 30V
  • Thermal Protection
  • Soft-Start Capability
  • Small 10-Pin Thermally Enhanced MSOP and (3mm × 3mm) DFN Packages
Additional Details
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The LT3693 is an adjustable frequency (200kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages up to 36V. A high efficiency 95mΩ switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability. Shutdown reduces input supply current to less than 1µA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage. The LT3693 is available in 10-Pin MSOP and 3mm × 3mm DFN packages with exposed pads for low thermal resistance.

Applications

  • Automotive Battery Regulation
  • Power for Portable Products
  • Distributed Supply Regulation
  • Industrial Supplies
  • Wall Transformer Regulation
Part Models 8
1ku List Price Starting From $4.59

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT3693EMSE#PBF

PRODUCTION

LT3693EMSE#TRPBF

PRODUCTION

LT3693IMSE#PBF

PRODUCTION

LT3693IMSE#TRPBF

PRODUCTION

Apr 2, 2021

- 21_0064

Test Platform Conversion for LT3693 MSOP

LT3693EMSE#PBF

PRODUCTION

LT3693EMSE#TRPBF

PRODUCTION

LT3693IMSE#PBF

PRODUCTION

LT3693IMSE#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0130

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LT3693EMSE#PBF

PRODUCTION

LT3693EMSE#TRPBF

PRODUCTION

LT3693IMSE#PBF

PRODUCTION

LT3693IMSE#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT3693EMSE#PBF

PRODUCTION

LT3693EMSE#TRPBF

PRODUCTION

LT3693IMSE#PBF

PRODUCTION

LT3693IMSE#TRPBF

PRODUCTION

Apr 2, 2021

- 21_0064

arrow down

Test Platform Conversion for LT3693 MSOP

LT3693EMSE#PBF

PRODUCTION

LT3693EMSE#TRPBF

PRODUCTION

LT3693IMSE#PBF

PRODUCTION

LT3693IMSE#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0130

arrow down

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LT3693EMSE#PBF

PRODUCTION

LT3693EMSE#TRPBF

PRODUCTION

LT3693IMSE#PBF

PRODUCTION

LT3693IMSE#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC1272A

LT3693EMSE Demo Board | 6.3V ≤ VIN ≤ 36V, VOUT = 5V @ 3.5A

Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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