Mfr Part #:

LT1172

Mfr Name: LT

The LT1172 is a high efficiency switching regulator from LT, designed for versatile power management applications. It features a wide input voltage range and low quiescent current.

✓ Total Stock: 28 pcs

LT1172 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	28 pcs On Request	28 pcs	On Request	1	On Request	On Request	07+	On Request	On Request

LT1172 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	LT
Input Voltage	3 V to 60 V
Lead Style	Through Hole
Mounting Type	Surface Mount
Package / Case	TO-220
Quiescent Current	6 mA
SVHC Present	Not Present

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LT1172 Description

Short technical summary and product information.

The LT1172 is a monolithic high-power switching regulator manufactured by LT. It operates at a constant frequency of 100kHz and supports a wide input voltage range from 3V to 60V. This device is designed for high efficiency and requires very few external parts, making it easy to implement in various designs.

Key features include a low quiescent current of 6mA and a shutdown mode that draws only 50µA. The LT1172 integrates all necessary oscillator, control, and protection circuitry on a single die. It can be operated in numerous switching configurations, including buck, boost, flyback, forward, inverting, and Cuk topologies. The LT1172 is available in standard 5-pin TO-3, TO-220 power packages, as well as 8-pin MiniDIP and surface mount packages.

This switching regulator is self-protected against overloads and offers fully floating outputs in flyback-regulated mode. It can also be externally synchronized. Its robust design and integrated features make it suitable for a broad range of power supply applications where efficiency and reliability are critical.

LT1172 Quick Information

Product Type: Switching Regulator

Series: LT1172

Canonical Name: LT1172 High Efficiency Switching Regulator

Subcategory: DC-DC Switching Regulators

LT1172 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

LT1172 Features

High efficiency switching regulator IC.
Wide 3V to 60V input voltage range.
Low 6mA quiescent current.
100kHz switching frequency.
Self-protected against overloads.

LT1172 Applications

Suitable for buck and boost converters.
Ideal for flyback and forward topologies.
Used in inverting and Cuk configurations.
Versatile power management solutions.
Applications requiring high efficiency.

LT1172 FAQs

6 frequently asked questions generated from this part’s specifications.

What is the switching frequency of the LT1172?

100 kHz.

What is the maximum switch current?

1.25 A.

What is the input voltage range?

3 V to 60 V.

What is the quiescent current?

6 mA.

What is the shutdown current?

50 µA.

What package options are available?

N-8, DDPAK-5, SO-8, SW-16, and TO-220.