The ISL80101 is a high-performance low-dropout regulator (LDO) capable of delivering 1A output current. It operates from input voltages of 2.2V to 6V and provides adjustable output voltages ranging from 0.8V to 5V. Fixed output voltage options are available in 0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V. The LDO features a soft-start pin that allows adjustment of in-rush current and delay for a valid output voltage. It utilizes a sub-micron CMOS process, offering lower quiescent current and faster load transient response compared to bipolar LDOs. It is suitable for various applications including DSP, FPGA, and µP core power supplies, noise-sensitive instrumentation systems, post regulation of switched mode power supplies, industrial systems, medical equipment, telecommunications and networking equipment, servers, and hard disk drives.
The ISL80101 is a low‑voltage, high‑current LDO regulator that operates from 2.2 V to 6 V input and provides selectable output voltages from 0.8 V up to 5 V. It delivers up to 1 A continuous current, features a typical dropout of 130 mV at full load, and includes adjustable in‑rush current limiting, short‑circuit protection, and thermal shutdown.
The device is offered in a 10‑lead DFN package and will also be available in TO‑220‑5, TO‑263‑5, and SOT‑223‑5 packages. It is RoHS‑compliant, Pb‑free, and includes an enable pin with a typical turn‑on threshold of 0.8 V and a power‑good flag for fault detection.
| Input voltage range | 2.2 V – 6 V |
|---|---|
| Output voltage options | 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V |
| Maximum output current | 1 A |
| Typical dropout voltage (1 A) | 130 mV |
| PSRR (1 kHz, 1 A load) | 58 dB |
| Output noise (300 Hz‑300 kHz) | 100 µV rms |
| Enable pin turn‑on threshold | 0.8 V (typical) |
| Package options | 10‑lead DFN, TO‑220‑5, TO‑263‑5, SOT‑223‑5 |
The typical dropout voltage is 130 mV at a 1 A load.
The enable pin turns on at about 0.8 V.
It is offered in a 10‑lead DFN package and will also be available in TO‑220‑5, TO‑263‑5, and SOT‑223‑5 packages.