The TA78DMxxS series are positive‑fixed‑output low‑dropout voltage regulator ICs offered in 5 V, 8 V, 9 V and 12 V versions. They can source up to 500 mA and feature low standby current, low dropout voltage, and multiple protection functions, making them suitable for battery‑powered equipment.
The document provides maximum ratings, electrical characteristics, application circuit examples, allowable power dissipation curves, and a mechanical outline drawing for the TO‑220 NIS package (HSIP3‑P‑2.54A).
| Maximum Output Current | 500 mA |
|---|---|
| Low Dropout Voltage | < 0.75 V at 500 mA |
| Low Standby Current | 800 µA Typical |
| Operating Input Voltage (VIN) | 29 V |
| Input Surge Voltage | 60 V |
| Power Dissipation (Ta = 25 °C) | 2 W |
The devices can source up to 500 mA of output current.
The dropout voltage is less than 0.75 V when delivering 500 mA.
Typical standby current is 800 µA.
The maximum power dissipation is 2 W at 25 °C.