| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,140 pcs
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2140 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LTC3546 is a dual, constant-frequency, synchronous step-down DC/DC converter from ADI Electronics, designed for medium power applications. It supports configurable 3A/1A or 2A/2A output configurations.
The device operates with an input voltage range of 2.3V to 5.5V and offers adjustable output voltages from 0.6V to 5V. It features internal synchronous low RDS(ON) power switches, eliminating the need for external Schottky diodes and providing high efficiency up to 96%. The switching frequency can be set to 2.25MHz, adjusted between 0.75MHz to 4MHz, or synchronized to an external clock.
User-selectable modes, including Burst Mode operation, pulse skipping, and forced continuous mode, allow for a trade-off between ripple noise and power efficiency. Burst Mode operation is particularly effective at light loads, providing high efficiency. The regulator is capable of low dropout configurations, with both channels operating at 100% duty cycle. In shutdown mode, the device draws less than 1µA.
The LTC3546EUFD#TRPBF is available in a thermally enhanced 28-lead 4mm x 5mm QFN package, suitable for surface mount applications.
The input voltage range is 2.3V to 5.5V.
The output voltage is adjustable from 0.6V to 5V.
The switching frequency is programmable from 0.75MHz to 4MHz, and can be set to 2.25MHz or synchronized to an external clock.
Efficiency is up to 96% in Burst Mode operation.
The shutdown current is less than 1µA.
Yes, it supports 100% duty cycle for low dropout operation.
It is available in a 28-VFQFN Exposed Pad package.