The XC6408 series is a positive voltage regulator IC manufactured using CMOS process with 28V operation voltage. The series consists of a voltage reference, an error amplifier, a current limiter, a thermal shutdown circuit and a phase compensation circuit plus a driver transistor. The output voltage and the detect voltage are user selectable in 0.1V increments. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level. The XC6408D series monitors its output voltage and provides reset signal if its output voltage falls below the pre-set voltage. This reset time (release delay time) can be set by an external capacitor. The XC6408E series monitors an external power supply and enables the output to be turned off and the IC becomes a stand-by mode.
The XC6408 series is a positive‑voltage regulator IC manufactured with a CMOS process for operation up to 28 V. It integrates a voltage reference, error amplifier, current limiter, thermal shutdown, phase‑compensation circuit and a driver transistor. Output and detect voltages are selectable in 0.1 V steps, with built‑in over‑current and thermal protection.
Two variants are offered: the XC6408D monitors its own output voltage and provides a reset signal, while the XC6408E monitors an external supply and can place the IC in standby mode. The device is supplied in SOT‑89‑5, SOT‑25 and USP‑6C packages and is RoHS‑compliant.
| Maximum Output Current | 150 mA (VIN = VOUT + 3.0 V) |
|---|---|
| Dropout Voltage | 175 mV @ IOUT=20 mA (VOUT=12 V) |
| Input Voltage Range | 2.0 V – 28.0 V |
| Output Voltage Range | 2.0 V – 18.0 V (0.1 V increments) |
| Detect Voltage Range | 2.0 V – 16.0 V (0.1 V increments) |
| Regulator Accuracy | ±2 % |
| Typical Supply Current (XC6408D) | 9.5 µA |
| Typical Supply Current (XC6408E) | 8 µA |
| Operating Temperature Range | -40 °C to +85 °C |
| Available Packages | SOT‑89‑5, SOT‑25, USP‑6C |
The series can deliver up to 150 mA of output current.
It operates with an input voltage from 2.0 V to 28.0 V.
The device is available in SOT‑89‑5, SOT‑25 and USP‑6C packages.
Typical supply current for XC6408E is 8 µA.