The LT3023 is a dual, micropower, low noise, low dropout regulator. It can provide 100mA of output current with a dropout voltage of 300mV. Its quiescent current is 20μA and its shutdown current is less than 0.1μA.
The LT3023 regulator provides two independent low‑noise, low‑quiescent channels for battery‑powered applications. Each channel delivers up to 100 mA, supports an input voltage from 1.8 V to 20 V, and can be adjusted from 1.22 V to 20 V. The device features very low shutdown current (<0.1 pA) and internal protection against reverse battery connection, over‑current, and over‑temperature.
The regulator is stable with output capacitors as low as 1 pF and works with ceramic, tantalum, or aluminum electrolytic capacitors. Pin functions, package options (10‑lead MSOP and DFN), and typical performance curves are detailed in the document, along with ordering information and startup/shutdown sequencing guidelines.
| Low Noise | 20 µV/√Hz (10 Hz‑100 kHz) |
|---|---|
| Quiescent Current | 20 µA per channel |
| Output Current | 100 mA per channel |
| Shutdown Current | <0.1 pA |
| Dropout Voltage | 300 mV at 100 mA |
| Input Voltage Range | 1.8 V to 20 V |
| Adjustable Output Voltage | 1.22 V to 20 V |
| Stability with Output Capacitor | Stable with 1 pF output capacitor |
| Reverse Battery Protection | Enabled |
| Over‑current and Over‑temperature Protection | Enabled |
The LT3023 draws about 20 µA per channel when active.
In shutdown mode the current drops to less than 0.1 pA per channel.
The dropout voltage is approximately 300 mV when delivering 100 mA.
It operates with an input voltage from 1.8 V up to 20 V.