This application note describes a DC/DC converter that runs from a low input voltage, such as a lithium ion battery. The input voltage range is from 0.3V to 1.6V.
Application Note AN113 is a collection of circuit designs titled "Tales From the Laboratory Notebook" published by Linear Technology in August 2007. The document details three specific DC/DC converter topologies intended for operation from extremely low input voltages, such as those provided by solar cells or thermopiles.
| Minimum Input Voltage (JFET) | 300mV to 1.6V |
|---|---|
| Maximum Output Current (JFET) | 2mA |
| Minimum Input Voltage (Bipolar) | 300mV (running) / 550mV (start) |
| Maximum Output Current (Bipolar) | 6mA |
| Output Voltage Range (APD Bias) | 200V from 5V |
The circuit can run from inputs as low as 300mV up to 1.6V.
The 5V output can supply up to 2mA.
It requires a 550mV input to start, but can run down to 300mV once started.