LT1725CS#PBF

$8.46

Description：IC REG CTRLR FLYBACK 16SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:7aa966331604 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR FLYBACK 16SOIC
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Up/Step-Down
Output Configuration：Positive or Negative, Isolation Capable
Topology：Flyback
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：9.7V ~ 22V
Frequency - Switching：90kHz ~ 115kHz
Duty Cycle (Max)：90%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable, Soft Start
Operating Temperature：0°C ~ 100°C (TJ)
Mounting Type：Surface Mount
Package / Case：16-SOIC (0.154", 3.90mm Width)
Supplier Device Package：16-SO
Grade：-
Qualification：-

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LT1725CS#PBF

Overview

The LT1725CS#PBF is a monolithic switching regulator controller designed for isolated flyback topologies. It drives external MOSFET gates with a fixed 50 kHz to 250 kHz switching frequency and supports up to 90% duty cycle. The device operates from a 12.1 V supply, delivering 500 mA output current within a -40°C to +125°C temperature range. Packaged in a 16-lead SOIC, it features shutdown control and soft start functionality.

Feature Summary

Monolithic design optimized for isolated flyback converter applications
Integrated gate driver for external N-channel MOSFETs
Built-in soft start mechanism to limit inrush current
Shutdown pin for power management control

Applications

Isolated DC-DC power supplies
General purpose flyback converters
Industrial power systems
Telecommunications equipment

Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance when sourcing. Confirm the SOIC-16 package dimensions match your PCB footprint requirements. Ensure the operating voltage and current ratings align with your target flyback transformer specifications before procurement.

Selection Notes

Select this component for designs requiring a dedicated flyback controller rather than an integrated switch. Consider the 16-lead SOIC package for surface mount assembly. Verify that the external MOSFET selection matches the drive capabilities and thermal requirements of the application.

Part Context

This part belongs to the LT1725 series of switching regulators manufactured by Analog Devices Inc. It serves as a core control element for power conversion circuits, distinct from complete DC-DC converter modules by requiring external power switches and magnetics.