LT1374CS8-5 The LT1374CS8-5 is a 4.5A monolithic buck mode switching regulator featuring a constant 500kHz switching frequency and fixed 5V output. Designed for high efficiency with cycle-by-cycle current limiting and thermal shutdown.
Mfr Part #:

LT1374CS8-5

Available from 3 distributors
Mfr Name: LT
LT
The LT1374CS8-5 is a 4.5A monolithic buck mode switching regulator featuring a constant 500kHz switching frequency and fixed 5V output. Designed for high efficiency with cycle-by-cycle current limiting and thermal shutdown.
✓ Total Stock: 1,410 pcs

LT1374CS8-5 Available from 3 distributors

✓ Authorised
✓ Non-Authorised

LT1374CS8-5 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Industrial Grade
Medical Grade
Military Grade
SVHC Present

LT1374CS8-5 Description

Short technical summary and product information.

The LT1374CS8-5 is a high-performance, 4.5A step-down switching regulator manufactured by Linear Technology. Operating at a constant 500kHz switching frequency, this monolithic buck converter integrates a 4.5A power switch with an effective on-resistance of 0.07Ω. The device utilizes current-mode topology for fast transient response and excellent loop stability.

 

It features a fixed 5V output option, making it suitable for distributed power architectures and battery-powered applications. Efficiency is maintained across wide load ranges through output biasing and a supply boost capacitor. Additional protections include cycle-by-cycle current limiting, thermal shutdown, and short-circuit protection.

 

The part supports external synchronization up to 1MHz and offers a low-power shutdown mode drawing only 20µA. Packaged in a compact 8-pin SO-8 surface mount footprint, it minimizes external component size, requiring an inductor as small as 1.8µH.

LT1374CS8-5 Quick Information

Product Type: DC-DC Switching Regulator
Series: LT1374
Canonical Name: LT1374CS8-5 4.5A Buck Mode Switching Regulator
Subcategory: Step-Down Switching Regulator

LT1374CS8-5 Compliance

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

LT1374CS8-5 Features

  • Fixed 5V output for simplified design.
  • Constant 500kHz switching frequency operation.
  • Integrated 4.5A switch with 0.07Ω resistance.
  • Cycle-by-cycle current limiting protection.
  • Low 20µA shutdown current consumption.

LT1374CS8-5 Applications

  • Ideal for portable computer power systems.
  • Suitable for battery charger circuits.
  • Used in distributed power distribution networks.
  • Designed for compact battery-powered equipment.
  • Fits compact surface mount layouts.

LT1374CS8-5 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LT1374CS8-5?

The output voltage is 5 V.

What is the maximum output current of the LT1374CS8-5?

The maximum output current is 4.5 A.

What is the switching frequency of the LT1374CS8-5?

The switching frequency is 500 kHz.

What is the maximum input voltage for the LT1374CS8-5?

The maximum input voltage is 25 V.

What package type is the LT1374CS8-5 available in?

The LT1374CS8-5 is available in an SO-8 surface-mount package.

What is the control topology of the LT1374CS8-5?

The control topology is buck (step-down).

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