LP38690-ADJ/LP38692-ADJ 1A Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors
The LP38690‑ADJ and LP38692‑ADJ are 1 A low‑dropout CMOS linear regulators with an adjustable output. They offer a 2.5 % adjust‑pin voltage accuracy, ultra‑low dropout voltage, and extremely low quiescent current, making them suitable for battery‑powered and portable devices.
Typical applications include hard‑disk drives, notebook computers, battery‑powered devices, and portable instrumentation. The devices are offered in SOT‑223 and 6‑Lead LLP packages, with enable pins for power‑on control on the LP38692‑ADJ variant.
| Dropout Voltage | 450 mV typ @ 1 A (typ. 5 V out) |
|---|---|
| Ground Pin Current | 55 pA typ at full load |
| Adjust Pin Voltage Accuracy | 2.5 % (25 °C) |
| Output Voltage Range | 1.25 V – 9 V |
| Input Voltage Range | 2.7 V – 10 V |
| Off‑State Quiescent Current | 1 pA |
| Enable Pin (LP38692‑ADJ) | Provides on/off control |
The typical dropout voltage is 450 mV at a 1 A load.
The ground pin current is typically 55 pA at full load.
The adjust pin voltage accuracy is 2.5 % at 25 °C.
They are offered in SOT‑223 and 6‑Lead LLP packages.