LT1578CS8-2.5#PBF

$4.56

Description：IC REG BUCK 2.5V 1.5A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:8fa3f8f93e4c Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 2.5V 1.5A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：-
Current - Output：1.5A
Frequency - Switching：200kHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SO

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LT1578CS8-2.5#PBF

Overview

The LT1578CS8-2.5#PBF is a monolithic buck mode switching regulator manufactured by Analog Devices Inc., housed in an 8-pin SOIC package. It integrates a 1.5A switch, oscillator, control circuitry, and logic within a single die. The device operates at a fixed switching frequency of 200kHz and utilizes current-mode topology to ensure fast transient response and stable loop performance. It accepts input voltages ranging from 4V to 15V and provides a fixed output voltage of 2.5V with a maximum output current capability of 1.5A.

Feature Summary

Integrates a 1.5A power switch and all necessary control logic for compact design
Employs current-mode topology for rapid transient response and enhanced stability
Operates as a synchronous step-down converter for high efficiency

Applications

3.3V or 2.5V DC-to-DC conversion circuits
Battery-powered systems requiring efficient step-down regulation
Industrial control power supplies

Procurement Notes

Verify the specific suffix (e.g., CS8) against the required operating temperature range and package dimensions. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the fixed 2.5V output aligns with system requirements, as adjustable variants exist within the same family.

Selection Notes

Select this component when a fixed 2.5V output is required alongside a 1.5A load capacity. The integrated 1.5A switch eliminates the need for external pass transistors. Consider the 200kHz frequency for balancing component size and efficiency. Verify that the input voltage range of 4V to 15V covers the source supply variations.

Part Context

This part belongs to the LT1578 family of monolithic switching regulators. Variants such as LT1578IS8-2.5 offer extended industrial temperature ranges. The CS8 designation indicates commercial grade operation. Related parts include the LT1579 for battery management and other buck converters like the LT1777 for different voltage or current profiles.