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LT1374CS8 The LT1374CS8 is a monolithic buck mode switching regulator featuring a 4.5A internal switch and a constant 500kHz switching frequency. It offers current mode control for fast transient response and includes cycle-by-cycle current limiting and thermal shutdown protection.
Mfr Part #:

LT1374CS8

Available from 2 distributors
Mfr Name: LT
LT
The LT1374CS8 is a monolithic buck mode switching regulator featuring a 4.5A internal switch and a constant 500kHz switching frequency. It offers current mode control for fast transient response and includes cycle-by-cycle current limiting and thermal shutdown protection.
✓ Total Stock: 9,536 pcs

LT1374CS8 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
9,536 pcs
On Request
9536 pcs On Request 1 On Request On Request 17+ On Request On Request
HK XINYUANXIN ELECTRONIC TECH LIMITED ✓
Non-Authorised Inventory information
On Request
On Request
On Request On Request 1 On Request On Request On Request On Request On Request
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LT1374CS8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Industrial Grade
Input Voltage
Lead Style
Mounting Type
Output Current
Protection Features
Quiescent Current
SVHC Present
Topology
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LT1374CS8 Description

Short technical summary and product information.

The LT1374CS8 is a high-performance 500kHz step-down switching regulator designed for efficient power conversion in space-constrained applications. Featuring a 4.5A integrated power switch and current mode topology, it delivers fast transient response and excellent loop stability. The high switching frequency significantly reduces the size of external passive components, allowing the use of small surface-mount inductors and capacitors.

 

Designed for wide input voltage ranges up to 25V, the regulator maintains high efficiency across a broad load current range. Key features include a low effective supply current of 2.5mA, a deep shutdown mode drawing only 20µA, and synchronization capability to an external clock up to 1MHz. Comprehensive protection mechanisms ensure reliable operation under fault conditions, including cycle-by-cycle current limiting, thermal shutdown, and short-circuit protection. Housed in a compact SO-8 package, the LT1374CS8 is ideal for portable computers, battery-powered systems, and distributed power architectures.

LT1374CS8 Quick Information

Product Type: DC-DC Switching Regulator
Series: LT1374
Canonical Name: LT1374CS8
Subcategory: DC-DC Converter

LT1374CS8 Compliance

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

LT1374CS8 Features

  • Integrates a 4.5A power switch for high current delivery.
  • Constant 500kHz switching frequency minimizes external component size.
  • Current mode control ensures fast transient response and stability.
  • Deep shutdown mode reduces supply current to 20µA.
  • Includes cycle-by-cycle current limiting and thermal shutdown.

LT1374CS8 Applications

  • Ideal for portable computer power management systems.
  • Suitable for battery charger circuits and power supplies.
  • Used in distributed power distribution networks.
  • Fits well in battery-powered equipment designs.

LT1374CS8 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum input voltage for the LT1374CS8?

25 V.

What package does the LT1374CS8 come in?

SO-8 surface mount package.

What is the switching frequency of the LT1374CS8?

500 kHz.

What is the output current rating of the LT1374CS8?

4.5 A.

What topology does the LT1374CS8 use?

Buck (step-down).

What control mode does the LT1374CS8 employ?

Current mode control.

What protection features are included in the LT1374CS8?

Cycle-by-cycle current limiting, thermal shutdown, and short circuit protection.

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