The ISL9000 is a high performance dual LDO from Philips that can provide 300mA of current, with low noise, high PSRR and low IQ.
The ISL9000 is a high‑performance dual low‑dropout regulator (LDO) capable of sourcing 300 mA per output with low standby current, excellent transient response, and very high PSRR. Each LDO includes independent enable and power‑on‑reset pins, soft‑start, current‑limit, and over‑heat protection. The device operates from 2.3 V to 6.5 V input and offers selectable output voltages from 1.5 V to 3.3 V.
The datasheet includes ordering information, absolute maximum ratings, recommended operating conditions, detailed electrical specifications, typical performance curves, pin descriptions, and a typical application circuit. The ISL9000 is supplied in a 10‑lead DFN (3 mm × 3 mm) package and is RoHS‑compliant.
| Output current per LDO | 300 mA |
|---|---|
| Quiescent current (both LDOs active) | 42 µA |
| Dropout voltage (typical at 300 mA) | 200 mV |
| PSRR (1 kHz) | 90 dB |
| Input voltage range | 2.3 V – 6.5 V |
| Selectable output voltage range | 1.5 V – 3.3 V |
| Package | 10‑lead DFN 3 mm × 3 mm |
The device draws only about 42 µA with both LDOs enabled.
By connecting a timing capacitor to the CPOR pin; the delay is roughly 200 ms per 0.01 µF.
Each LDO can continuously source up to 300 mA.
It is supplied in a 10‑lead DFN (3 mm × 3 mm) plastic package.