請幫忙下戴這幾篇:
1. A low power external capacitor-less low drop-out regulator with low over/undershoot voltage and high PSR
2. A wide input voltage range, high power supply rejection low-dropout regulator with a closed-loop charge pump for sensor front-end circuits
3. A Quiescent 407-nA Output-Capacitorless Low-Dropout Regulator With 0-100-mA Load Current Range
4. A 0.91- μ A-quiescent-current capacitor-less LDO with sub-threshold transient enhancement and bulk-driven feed-forward supply ripple cancellation