Datasheet Analog Devices LTC3035 — 数据表

LTC3035
300mA VLDO Linear
Regulator with Charge Pump
Bias Generator U FEATURES DESCRIPTIO ■ The LTC®3035 is a micropower, VLDO™ (very low dropout) linear regulator which operates from input voltages as
low as 1.7V. The device is capable of supplying 300mA of
output current with a typical dropout voltage of only
45mV. To allow operation at low input voltages the LTC3035
includes a charge pump generator that provides the necessary bias voltage for the internal LDO circuitry. Output
current comes directly from the input supply for high
efficiency regulation. The charge pump bias generator
requires only a 0.1µF flying capacitor and a 1µF bypass
capacitor for operation. The low 0.4V internal reference
voltage allows the LTC3035 to be programmed to much
lower output voltages than commonly available in LDOs.
The output voltage is programmed via two tiny SMD
resistors. The LTC3035’s low quiescent current makes it
an ideal choice for use in battery-powered systems. ■
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