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LT3690EUFE#TRPBF The LT3690EUFE#TRPBF is a synchronous step-down switching regulator from LT, designed for input voltages up to 36V and capable of delivering up to 4A. It operates with a low quiescent current and features a wide output voltage range.
Mfr Part #:

LT3690EUFE#TRPBF

Available from 1 distributors
Mfr Name: LT
LT
The LT3690EUFE#TRPBF is a synchronous step-down switching regulator from LT, designed for input voltages up to 36V and capable of delivering up to 4A. It operates with a low quiescent current and features a wide output voltage range.
✓ Total Stock: 3,900 pcs

LT3690EUFE#TRPBF Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
3,900 pcs
On Request
3900 pcs On Request 1 On Request On Request 18+ On Request On Request
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LT3690EUFE#TRPBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Style
Mounting Type
Output Current
Package / Case
Quiescent Current
SVHC Present
Tape & Reel
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LT3690EUFE#TRPBF Description

Short technical summary and product information.

The LT3690EUFE#TRPBF is a versatile monolithic buck switching regulator from LT, accepting input voltages from 3.9V up to 36V. It integrates a high efficiency 30mΩ N-channel synchronous power switch, eliminating the need for an external Schottky diode and improving efficiency. This regulator utilizes current mode topology for fast transient response and good loop stability.

 

Key electrical specifications include a maximum output current of 4A, a feedback reference voltage of 0.8V, and an adjustable oscillator frequency range from 170kHz to 1.5MHz. It supports low ripple Burst Mode operation, maintaining high efficiency at low output currents with quiescent current as low as 70µA at 12VIN to 3.3VOUT. The output voltage can be programmed from 0.8V to 20V.

 

Protection features include programmable undervoltage lockout, short-circuit protection, frequency foldback, and thermal shutdown. A power good flag signals when the output voltage reaches 90% of the programmed level. The device is available in a small, thermally enhanced 4mm x 6mm QFN package with exposed pads for low thermal resistance, suitable for surface mount applications.

LT3690EUFE#TRPBF Quick Information

Product Type: Synchronous Step-Down Switching Regulator
Series: LT3690
Canonical Name: LT3690EUFE#TRPBF Synchronous Step-Down Switching Regulator
Subcategory: DC-DC

LT3690EUFE#TRPBF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

LT3690EUFE#TRPBF Features

  • 36V input, 4A output synchronous buck regulator.
  • Integrated 30mΩ N-channel synchronous switch.
  • Low 70µA quiescent current in Burst Mode.
  • Wide 0.8V to 20V output voltage range.
  • Programmable 170kHz to 1.5MHz oscillator.

LT3690EUFE#TRPBF Applications

  • Suitable for automotive systems.
  • Ideal for industrial power supplies.
  • Used in distributed supply regulation.
  • Powers low power applications efficiently.

LT3690EUFE#TRPBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LT3690EUFE#TRPBF?

3.9V to 36V.

What is the output voltage range?

0.8V to 20V.

What is the maximum output current?

4A.

What package is the LT3690EUFE#TRPBF available in?

QFN 4mm x 6mm.

What is the oscillator frequency range?

170kHz to 1.5MHz, programmable and synchronizable.

What is the quiescent current?

70µA at 12VIN to 3.3VOUT.

What is the feedback reference voltage?

0.8V.

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