The XC6220 series is a highly accurate, low noise, high speed, low dropout, and large current CMOS voltage regulator with GreenOperation function. The series consists of a voltage reference, an error amplifier, a current limiter, an inrush current prevention circuit and a phase compensation circuit plus a driver transistor. With a 0.2Ω on-resistance driver transistor integrated, the ultra low dropout voltage performance with output currents up to 1A greatly extends battery life as does the GreenOperation function which can switch between high speed and power save modes automatically.
The XC6220 Series is a low‑dropout (LDO) CMOS voltage regulator that delivers up to 1 A with high accuracy and low noise. It features a built‑in GreenOperation mode that automatically switches between high‑speed and power‑save operation based on load current, extending battery life.
The document provides detailed pin assignments, electrical characteristics, typical application circuits, and packaging information for the SOT‑25, SOT‑89‑5, USP‑6C, and SOP‑8FD variants. Guidance on capacitor selection, inrush current protection, and thermal shutdown is also included.
| Output Voltage Range | 0.8 V ~ 5.0 V (0.05 V steps) |
|---|---|
| Dropout Voltage (100 mA) | 20 mV |
| Voltage Accuracy (VOUT ≥ 2.0 V) | ±1 % |
| Stand‑by Current (Power‑Save mode) | 8 µA (typ.) |
| Thermal‑Shutdown Detect Temperature | 150 °C |
| Inrush Current Limit | 700 mA (max, ~1 ms) |
| Recommended Output Capacitor | Low‑ESR ceramic |
| CE Pin Function | Turns output off, enters standby |
The CE pin disables the output and puts the IC into a standby mode, greatly reducing power consumption.
GreenOperation automatically switches the regulator between high‑speed mode and power‑save mode according to the output current level.
A low‑ESR ceramic capacitor is recommended for the output stabilization capacitor (C L).