| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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726 pcs
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726 pcs | On Request | 1 | On Request | On Request | 08+ | On Request | On Request |
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The LTC3547EDDB is a dual, 2.25MHz, constant-frequency, synchronous step-down DC/DC converter designed for portable systems. Each regulator can supply 300mA continuous output current, with an input voltage range of 2.5V to 5.5V, making it suitable for Li-Ion and USB powered devices.
This converter features automatic Burst Mode operation for increased efficiency at light loads and low dropout operation due to its 100% duty cycle. It supports low output voltages with a 0.6V feedback reference voltage. The device operates with a quiescent current of only 40µA during operation and less than 1µA in shutdown, further extending battery life.
The LTC3547EDDB is available in a low-profile 3mm x 2mm DFN package with a height of 0.75mm. Internal compensation allows for the use of ceramic capacitors, and internal soft-start reduces inrush current during startup. Its current mode operation ensures excellent line and load transient response.
The input voltage range is 2.5V to 5.5V.
Each regulator can supply 300mA continuous output current at VIN = 3V.
The switching frequency is internally set at 2.25MHz.
The quiescent current during operation for both channels is typically 40µA.
The shutdown current is less than 1µA.
The device offers high efficiency dual step-down outputs of up to 96%.
The feedback reference voltage is 0.6V.