LTC1147CS8-5#TRPBF

$4.17

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

SKU:7fcaaa4e7ff2 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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LTC1147CS8-5#TRPBF

Overview

The LTC1147CS8-5#TRPBF is a high-efficiency step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5 V to 16 V and provides a fixed 5 V output. The device supports up to 700 mA output current with a typical static current of 160 uA. It functions at a switching frequency of 400 kHz and includes shutdown capability. The component is housed in an 8-SOIC package and is rated for operation between -40°C and +85°C.

Feature Summary

Features automatic Burst Mode operation to maintain high efficiency at low output currents
Includes internal compensation and current limit protection
Supports 100% duty cycle operation

Applications

Battery-powered systems requiring high efficiency
Industrial control power supplies
Portable instrumentation

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the operating temperature grade matches system requirements, as industrial variants may differ from commercial grades. Ensure the SOIC-8 footprint aligns with PCB layout constraints. Cross-reference the manufacturer part number directly with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this controller for designs requiring a buck topology with fixed 5 V output. Consider the 400 kHz switching frequency for passive component size trade-offs. Evaluate the 160 uA quiescent current against battery life requirements. Verify that external MOSFETs support the required current and voltage ratings for the intended load.

Part Context

This component belongs to the LTC1147 series of switching regulator controllers. It is designed as a cost-effective solution for step-down conversion applications. The series is characterized by its simplicity and ability to drive external N-channel MOSFETs efficiently without requiring complex external compensation networks.