Microchip Technology

The MIC2204 is a high efficiency 2MHz PWM synchronous buck switching regulator. Power conversion efficiency of above 95% is easily obtainable over a wide range of applications. A proprietary internal compensation technique ensures stability with the smallest possible inductor and ceramic output capacitor. The MIC2204 operates from 2.3V to 5.5V input and features internal power MOSFETs that can supply over 600mA of output current with output voltages down to 1V. The MIC2204 implements a constant 2MHz pulse-width-modulation (PWM) control scheme which reduces spurious noise in sensitive RF and communication applications. Additionaly, the MIC2204 can be synchronized to an external clock, or multiple MIC2204s can easily be daisy-chained with the SYNCLOCK feature. The MIC2204 has a high bandwidth loop (typ. 200kHz) which allows ultra fast transient response times. This is very useful when powering applications that require fast dynamic response such as CPU cores and RF circuitry in high performance cellular phones and PDAs. The MIC2204 is available in 10-pin MSOP package with an operating junction temperature range from -40°C to 125°C .

The MIC2210 is a dual µCap low dropout regulator with an open-drain driver and power-on reset circuit. The first regulator is capable of sourcing 150mA, while the second regulator can source up to 300mA and includes a power-on reset function. The open-drain output is capable of sinking 150mA for LED backlighting applications. Ideal for battery operated applications, the MIC2210 offers 1% accuracy, extremely low dropout voltage (80mV @ 100mA), and extremely low ground current, only 48µA total. Equipped with a TTL logic compatible enable pin, the MIC2210 can be put into a zero off-mode current state, drawing no current when disabled. The MIC2210 is a µCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost. The MIC2210 is available in fixed output voltages in the 10-pin 3mm x 3mm MLF® leadless package.

The MIC2213 is a dual µCap low dropout regulator with an open-drain driver and power-on reset circuit. The first regulator is capable of sourcing 150mA, while the second regulator can source up to 300mA. A power-on reset function monitors both outputs, indicating a fault on either output 1 or output 2. The open-drain output is capable of sinking 150mA for LED backlighting applications. The MIC2213 adds the additional feature of sequencing between the outputs, with the output of regulator 1 having to settle before the output of regulator 2 can begin to turn-on. Ideal for battery operated applications, the MIC2213 offers 1% accuracy, extremely low dropout voltage (80mV @ 100mA), and extremely low ground current, only 48µA total. Equipped with a TTL logic compatible enable pin, the MIC2213 can be put into a zero off-mode current state, drawing no current when disabled. The MIC2213 is a µCap design, operating with very small ceramic output capacitors for stability, reducing required board space and component cost.

The MIC2215 is a high performance, triple LDO voltage regulator, with each regulator capable of providing 250mA continuous output current. Ideal for battery operated applications, the MIC2215 offers 1% initial accuracy, extremely low dropout voltage (100mV @ 150mA), and low ground current at light load (typically 110µA per regulator). Equipped with a noise bypass pin and featuring very high power supply ripple rejection (PSRR) of up to 80dB, the MIC2215 provides the lowest noise and highest efficiency solution for RF applications in portable electronics such as cellular phones and wireless LAN applications. Equipped with TTL logic-compatible enable pins, each of the regulators in the MIC2215 can be put into a zero-current off-mode where the supply current is much less than 1µA when all the regulators are disabled. The MIC2215 is a µCap design, which enables a stable output with small ceramic output capacitors, reducing both cost and required board space for output bypassing.