LTC3544B - Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA

The LTC3544B 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 LTC3544B well suited for single Li-Ion/polymer battery-powered applications. 100% duty cycle provides low dropout operation, extending battery runtime in portable systems. At moderate and low output load levels PWM pulse skip mode operation provides very low output ripple voltage for noise sensitive applications.
Switching frequency is internally set to 2.25MHz, allowing the use of small surface mount inductors and capacitors.
The internal synchronous switches increase ef ciency and eliminate the need for external Schottky Diodes Low output voltages are easily supported with the 0.8V feedback reference voltage.
The LTC3544B is available in a low pro le (0.75mm) (3mm 3mm) QFN package.
By Linear Technology Corporation
LTC3544B 's PackagesLTC3544B 's pdf datasheet

LTC3544B Pinout, Pinouts
LTC3544B pinout,Pin out
This is one package pinout of LTC3544B,If you need more pinouts please download LTC3544B's pdf datasheet.

LTC3544B Application circuits
LTC3544B circuits
This is one application circuit of LTC3544B,If you need more circuits,please download LTC3544B's pdf datasheet.

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