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300 milliamp low dropout regulator operates down to 1.7 volts

Milpitas, Calif. — Linear Technology Corp.'s 300 mA very low dropout (VLDO) linear regulator with input voltage capability down to 1.7 volts features a low internal reference voltage with corresponding adjustable output voltage operation from 0.4 V to 3.6 V.

Linear Tech's LTC3035 also maintains a low dropout voltage of 45 millivolts at full load current. To allow operation at low input voltages, the LTC3035 regulator includes an integrated charge pump converter that provides the necessary headroom for the internal LDO circuitry. This low input voltage capability enables performance in applications ranging from Li-Ion or 2xAA alkaline cell to low input to low output voltage conversion systems.

The LTC3035's tight output voltage ±2 percent accuracy, low quiescent and shutdown currents of 100 microamps and 1 microamp, respectively, combined with fast transient response and small solution footprint with few external components, make it practical for battery-powered handheld devices such as Bluetooth -enabled devices, cellular phones, media players, handheld medical and industrial instruments, according to the Linear Technology.

The LTC3035 regulator optimizes stability and transient response with low electrostatic resistance (ESR), ceramic output capacitors as small as 1 microfarad. Internal safety circuitry includes short-circuit and reverse output current protection, plus output current and thermal limiting.

The LTC3035EDDB is available now in an 8-lead DFN (3 x 2 x 0.75 mm) package for $1.29 each in 1,000-piece quantities. Click here for the LTC3035 data sheet.

Linear Technology Corp. , 1-800-454-6327, www.Linear.com.

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