The LTC1516 is a micropower charge pump DC/DC converter that produces a regulated 5V output from a 2V to 5V supply. Extremely low supply current (12µA typical with no load, < 1µA in shutdown) and low external parts count (two 0.22µF flying capacitors and two 10µF capacitors at VIN and VOUT ) make the LTC1516 ideally suited for small, light load battery-powered applications. Typical efficiency (VIN = 3V) exceeds 70% with load currents between 50µA and 50mA. Modulating the SHDN pin keeps the typical efficiency above 70% with load currents all the way down to 10µA. The LTC1516 operates as either a doubler or a tripler depending on V IN and output load conditions to improve overall efficiency. The part has thermal shutdown and can survive a continuous short from VOUT to GND. In shut-down the load is disconnected from VIN . The LTC1516 is available in an 8-pin SO package in both commercial and industrial temperature grades. Applications * 2-Cell to 5V Conversion * Li-Ion Battery Backup Supplies * Local 3V to 5V Conversion * 5V Flash Memory Programmer * Smart Card Readers * Ultralow Power: Typical Operating ICC = 12µA * Short Circuit/Thermal Protection * Regulated 5V ±4% Output * 2V to 5V Input Range * No Inductors * ICC in Shutdown: < 1µA * Output Current: * 20mA (VIN > 2V) * 50mA (VIN > 3V) * Shutdown Disconnects Load from VIN * Internal Oscillator: 600kHz * Compact Application Circuit (0.1 in2) * 8-Pin SO Package https://elecena.pl/product/250984/micropower-regulated-5v-charge-pump-dc-dc-converter 2007-03-02 https://elecena.pl/product/250984/micropower-regulated-5v-charge-pump-dc-dc-converter 2014-04-19 https://elecena.pl/product/250984/micropower-regulated-5v-charge-pump-dc-dc-converter 2025-01-18