Features
- High Performance LDO with 150mA Continuous Output
- Excellent Transient Response to Large Current Steps
- Excellent Load Regulation: <0.1% voltage change across full range of load current
- Very High PSRR: >90dB at 1kHz
- Wide Input Voltage Capability: 2.3V to 6.5V
- Extremely Low Quiescent Current: 31µA
- Low Dropout Voltage: Typically 200mV at 150mA
- Low Output Noise: Typically 20µVRMS at 100µA (1.5V)
- Stable with 1µF to 4.7µF Ceramic Capacitors
- Shutdown Pin Turns Off LDO with 1µA (max) Standby Current
- Soft-start Limits Input Current Surge During Enable
- Current Limit and Overheat Protection
- ±1.8% Accuracy Over all Operating Conditions
- 5 Ld SC-70 Package or 6 Ld µTDFN Package
- -40°C to +85°C Operating Temperature Range
- Pb-Free (RoHS compliant)
Description
ISL9003A is a high performance single low noise, high PSRR LDO that delivers a continuous 150mA of load current. It has a low standby current and is stable with 1µF of MLCC output capacitance with an ESR of up to 200mΩ. The ISL9003A has a very high PSRR of 90dB and output noise is 20µVRMS (typical). When coupled with a no load quiescent current of 31µA (typical), and 0. 5µA shutdown current, the ISL9003A is an ideal choice for portable wireless equipment. The ISL9003A comes in many fixed voltage options with ±1. 8% output voltage accuracy over temperature, line and load. Other output voltage options are available on request.
Parameters
| Attributes | Value |
|---|---|
| Input Voltage (Min) (V) | 2.3 |
| Input Voltage (Max) (V) | 6.5 |
| Output Voltage (Min) (V) | 1.5 |
| Output Voltage (Max) (V) | 3.3 |
| Output Current 1 (Max) (A) | 0.15 |
| Drop Out Voltage (Typical) | 200 @150mA |
| Fixed Output Voltage Option | Yes |
| PSRR (db) | 90 |
| Quiescent Current | 29 µA |
| Noise (10Hz to 100kHz) (μVrms) | 20 |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| SC70 | 2.0 x 1.2 x 1.90 | 5 | 0.7 |
Application Block Diagrams
|
Human Machine Interface (HMI) for Appliances
Customizable HMI system for smart appliances with display, touch, voice, and NFC options.
|
|
Off-road GPS Guidance System
High-accuracy GPS/GNSS system offers precise navigation for agricultural and industrial machinery.
|
|
Critical Power Monitoring System
Critical power monitoring system utilizes NB‑IoT or Cat‑M1, MCU, sensors, and battery backup.
|
Additional Applications
- PDAs, Cell Phones and Smart Phones
- Portable Instruments, MP3 Players
- Handheld Devices Including Medical Handhelds