Designed to meet the needs of sensitive RF and analog circuits, the TPS7A21 provides low noise, high PSRR, and low quiescent current, as well as excellent line and load transient response. The TPS7A21 achieves excellent noise performance without the need for a separate noise filter capacitor.

The TPS7A21 is designed to operate properly with a single 1-µF input capacitor and a single 1-µF ceramic output capacitor. The effective output capacitance must be at least 0.4 µF across all operating voltage and temperature conditions.