TC1269 is a fixed output, high accuracy (typically ±0.5%) CMOS upgrade for older (bipolar) low dropout regulators. It has very low ground current, low dropout voltage, 300mA output current, high output voltage accuracy, standard or custom output voltages, power saving shutdown mode, bypass input for ultra quiet operation, over current and over temperature protection.
The TC1269 is a 300 mA CMOS low‑dropout regulator featuring ultra‑low ground current, low dropout voltage, shutdown mode, and optional bypass input for ultra‑quiet operation. It is intended for battery‑operated systems, portable computers, medical instruments, and other portable electronics.
The device provides over‑temperature and over‑current protection, operates from –40 °C to +125 °C, and is supplied in an 8‑Pin MSOP package. Electrical specifications include a typical supply current of 50 µA at full load, a shutdown current of about 0.05 µA, and a typical dropout voltage of 240 mV. Recommended external components are a 1 µF output capacitor and an optional 470 pF bypass capacitor to reduce output noise.
| Maximum Output Current | 300 mA |
|---|---|
| Dropout Voltage (typical) | 240 mV at full load |
| Operating Temperature Range | -40 °C to +125 °C |
| Package Type | 8‑Pin MSOP |
The device incorporates both over‑temperature and over‑current protection.
Total supply current is typically 50 µA at full load, giving a very low ground current.