LT1578CS8#PBF

$9.04

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

SKU:e4c24de1716f Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 1.5A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：1.21V
Voltage - Output (Max)：14.1V
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#PBF

Overview

The LT1578CS8#PBF is a monolithic buck mode switching regulator manufactured by Analog Devices Inc. It operates at a fixed frequency of 200kHz and integrates a 1.5A power switch along with all necessary oscillator, control, and logic circuitry on the die. The device utilizes current-mode topology to ensure fast transient response and stable loop performance. It accepts an input voltage range of 4V to 15V and provides a single adjustable output voltage starting from 1.25V. The component is housed in an 8-pin SOIC package.

Feature Summary

Integrates a 1.5A power switch within a monolithic buck mode switching regulator architecture
Employs current-mode topology for rapid transient response and robust loop stability
Includes internal oscillator, control mechanisms, and logic circuitry to minimize external component count

Applications

3.3V DC-DC step-down converter circuits
Dual-output SEPIC converter designs
General-purpose low-voltage power supply regulation

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status through manufacturer declarations. Check availability as distribution channels may indicate limited stock or discontinuation. Ensure the package type matches the design requirements before ordering.

Selection Notes

Select this component for applications requiring a simple buck conversion solution with integrated high-current switching capability. The fixed 200kHz frequency allows for compact passive component selection. Consider the input voltage range and required output current when evaluating suitability for the target power stage.

Part Context

This part belongs to the LT1578 family of switching regulators designed for efficient DC-DC conversion. It serves as a core power management IC for systems needing reliable step-down voltage regulation without complex external control loops.