LTC3805EDD#PBF

$4.85

Description：IC REG CTRLR FLYBACK 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:7c1a246be4db Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3805EDD#PBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR FLYBACK 10DFN. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3805EDD#PBF

Description：IC REG CTRLR FLYBACK 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Up/Step-Down
Output Configuration：Positive, Isolation Capable
Topology：Flyback
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：3.95V ~ 9.5V
Frequency - Switching：70kHz ~ 700kHz
Duty Cycle (Max)：80%
Synchronous Rectifier：No
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Soft Start
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x3)

DC DC Switching Controllers datasheet and documents for LTC3805EDD#PBF

LTC3805EDD#PBF

DC DC Switching Controllers Overview

The LTC3805EDD#PBF is a current mode DC/DC controller designed for flyback, boost, and SEPIC converter applications. It drives an N-channel MOSFET with an adjustable switching frequency ranging from 70 kHz to 700 kHz. The device supports input voltages up to 75 V via an internal shunt regulator or direct low-impedance supply. Key electrical parameters include a quiescent current of 360 μA during normal operation and 40 μA during micropower startup. It offers ±1.5% output voltage accuracy and operates within a temperature range of -40°C to +125°C. The component is housed in a 10-lead DFN EP package.

DC DC Switching Controllers Feature Summary

Supports flyback, boost, and SEPIC topologies with external programming of operating frequency and slope compensation
Provides programmable overcurrent sensing to protect against overload and short-circuit conditions
Features micropower startup capability with automatic restart functionality managed by an external soft-start capacitor

DC DC Switching Controllers Applications

Isolated flyback power supplies requiring high input voltage ranges
Non-isolated boost converters for step-up voltage regulation
SEPIC converters for wide input voltage conversion scenarios

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'EDD' corresponds to the industrial temperature grade (-40°C to +125°C) and DFN EP package configuration. Confirm RoHS compliance status through official Analog Devices documentation. Ensure the ordering part number matches the exact pinout and thermal pad requirements for your PCB layout design.

DC DC Switching Controllers Selection Notes

Select this controller when designing flyback, boost, or SEPIC converters requiring adjustable frequency operation. It is suitable for applications needing high input voltage support up to 75 V. Consider the 360 μA quiescent current for efficiency requirements. Verify that the external components can handle the required peak currents and voltage stresses associated with the chosen topology.

DC DC Switching Controllers Part Context

This component belongs to the LTC3805 family of adjustable frequency current mode controllers manufactured by Analog Devices. The family includes variants such as the IMSE and HMSE packages. These controllers are engineered for versatile power conversion architectures, offering flexibility in frequency selection and robust protection features for industrial and commercial power management systems.