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ST1S40IDR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

ST1S40IDR product

ST1S40IDR

Voltage Regulators - DC DC Switching Regulators

Buck Regulator3ASynchronous

The ST1S40IDR is a high-efficiency 3A synchronous step-down regulator designed for compact point-of-load applications.

Best for

  • Point of load regulation
  • Core and I/O supplies

Avoid if

  • Applications requiring extremely low quiescent current in standby

Check before use

  • Thermal dissipation requirements for the SO8-BW package

Key specifications

Output Current
3 A
Input Voltage
4.0 V - 18 V
Switching Frequency
850 kHz

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power Management

Datasheet

ST1S40IDR-STMicroelectronics-datasheet-68071808.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ST1S40IDR: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is an internally compensated 850 kHz fixed-frequency PWM synchronous step-down regulator capable of delivering up to 3A of output current.