LTC1147CS8-3.3#TRPBF

$4.17

Description：IC REG CTRLR BUCK 8SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:85832d8d9a49 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK 8SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：3.5V ~ 14V
Frequency - Switching：-
Duty Cycle (Max)：100%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SO

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LTC1147CS8-3.3#TRPBF

Overview

The LTC1147CS8-3.3#TRPBF is a high-efficiency step-down switching regulator controller manufactured by Analog Devices Inc. It operates from an input voltage range of 3.5V to 12V and provides a fixed 3.3V output with up to 700mA current capability. The device features automatic Burst Mode operation for maintaining efficiency at low loads, a 400kHz switching frequency, and a shutdown pin for power management. It is housed in an 8-pin SOIC package.

Feature Summary

Automatic Burst Mode operation maintains high efficiency at low output currents
Integrated shutdown control for power management
Fixed 3.3V output voltage regulation

Applications

Battery-powered portable equipment
Industrial control systems
Communication modules

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging versus tube variants. Confirm RoHS compliance status through official documentation. Ensure the component matches the exact Analog Devices part number to avoid compatibility issues with existing designs.

Selection Notes

Select this controller for applications requiring high efficiency across varying load conditions. Consider the 400kHz switching frequency for inductor size trade-offs. Verify input voltage stability within the 3.5V to 12V range for proper operation.

Part Context

This component belongs to the LTC1147 series of DC/DC controllers. It is designed as a drop-in replacement for older linear regulators in battery-operated systems where efficiency is critical. The series supports various output voltages while maintaining a compact footprint.