LTC3544 - Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA

The LTC3544 is a quad, high efficiency, monolithic synchronous buck Regulator using a constant-frequency, current mode architecture. The four Regulators operate independently with separate run pins. The 2.25V to 5.5V input voltage range makes the LTC3544 well suited for single Li-Ion/polymer battery-powered applications. 100% duty cycle provides low dropout operation, extending battery runtime in portable systems. Low ripple Burst Mode operation increases efficiency at light loads, further extending battery runtime with typically only 20mV of ripple.
Switching frequency is internally set to 2.25MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switches increase efficiency and eliminate the need for external Schottky Diodes Low output voltages are easily supported with the 0.8V feedback reference voltage.
The LTC3544 is available in a low profile (0.75mm) (3mm 3mm) QFN package.
By Linear Technology Corporation
LTC3544 's PackagesLTC3544 's pdf datasheet
LTC3544BEUD-PBF QFN
LTC3544BEUD-TRPBF QFN
LTC3544EUD-PBF QFN
LTC3544EUD-TRPBF QFN




LTC3544 Pinout, Pinouts
LTC3544 pinout,Pin out
This is one package pinout of LTC3544,If you need more pinouts please download LTC3544's pdf datasheet.

LTC3544 Application circuits
LTC3544 circuits
This is one application circuit of LTC3544,If you need more circuits,please download LTC3544's pdf datasheet.


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