| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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5,910 pcs
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5910 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LTC3891EFE#TRPBF from Analog Devices is a high-performance, synchronous step-down switching regulator DC/DC controller. It is designed to drive an all N-channel synchronous power MOSFET stage, offering a constant frequency current mode architecture with a phase-lockable frequency up to 750kHz.
This controller supports a wide input voltage range from 4V to 60V, making it suitable for various intermediate bus voltages and battery chemistries. The output voltage can be programmed between 0.8V and 24V. Key features include a low operating quiescent current of 50μA, extending battery life, and a precision 0.8V reference with a power good output indicator. The TRACK/SS pin allows for adjustable output voltage soft-start or tracking during start-up, while current foldback protects MOSFETs during short-circuit conditions.
The device operates with a maximum duty cycle of 99% and offers selectable continuous, pulse-skipping, or low ripple Burst Mode operation at light loads. It supports RSENSE or DCR current sensing and has selectable current limit. The operating temperature range is -40°C to 125°C (TJ).
Packaged in a 20-TSSOP (0.173", 4.40mm Width) Exposed Pad, the LTC3891EFE#TRPBF is designed for surface mount applications. Its robust design and feature set make it suitable for automotive always-on systems, battery-powered digital devices, and distributed DC power systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 4V to 60V.
It comes in a 20-TSSOP-EP (0.173", 4.40mm Width) Exposed Pad surface mount package.
The operating temperature range is -40°C to 125°C (junction).
The maximum output current is 5A.
The switching frequency can be programmed from 50kHz to 900kHz, or phase-locked from 75kHz to 750kHz, or set internally from 105kHz to 835kHz.
Yes, it features synchronous rectification.