LTC3891EFE#PBF

$9.69

Description：IC REG CTRLR BUCK 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:62c75a8dab6a Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3891EFE#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 BUCK 20TSSOP. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3891EFE#PBF

Description：IC REG CTRLR BUCK 20TSSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：4V ~ 60V
Frequency - Switching：105kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max)：99%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：20-TSSOP-EP
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for LTC3891EFE#PBF

LTC3891EFE#PBF

DC DC Switching Controllers Overview

The LTC3891EFE#PBF is a low quiescent current synchronous step-down DC/DC controller from Analog Devices. It drives all N-channel power stages with an input voltage range of 4V to 60V and supports output voltages from 800mV to 24V. The device features a typical no-load quiescent current of 50µA, a switch frequency up to 900kHz, and operates within a temperature range of -40°C to +125°C. Packaged in a 20-lead TSSOP with exposed pad, it offers precise load regulation of 0.01%.

DC DC Switching Controllers Feature Summary

Synchronous buck topology for high efficiency
Low quiescent current operation
Integrated soft start and tracking
Precision voltage reference

DC DC Switching Controllers Applications

Distributed DC power systems
Battery operated digital devices
Automotive always-on systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component matches the 20-TSSOP-EP package specification. Cross-reference the Mouser number 584-LTC3891EFE#PBF for accurate identification during procurement processes.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring wide input voltage ranges up to 60V. Consider the 50µA quiescent current for battery-powered designs. Evaluate the 900kHz switching frequency against EMI requirements. Verify compatibility with N-channel MOSFETs for the synchronous rectification stage.

DC DC Switching Controllers Part Context

This component belongs to the LTC3891 series of synchronous step-down controllers. It is designed to drive external N-channel power MOSFETs. The device integrates essential control functions for efficient power conversion. It serves as a core element in modern power management integrated circuits.