Overview
The ADP124ARHZ-3.3-R7 is a low quiescent current, low dropout linear regulator produced by Analog Devices Inc. This device is part of the ADP124 series, which is designed to operate from an input voltage range of 2.3 V to 5.5 V and provide up to 500 mA of output current. The ADP124ARHZ-3.3-R7 is specifically configured to provide a fixed output voltage of 3.3 V, making it suitable for a variety of applications requiring stable and efficient power regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 to 5.5 | V |
| Output Voltage | 3.3 | V |
| Maximum Output Current | 500 | mA |
| Dropout Voltage | 130 | mV |
| Quiescent Current | 45 | µA |
| Shutdown Current | <1 | µA |
| Power Supply Rejection Ratio (PSRR) | 60 dB at 100 kHz | |
| Package Type | 8-lead exposed paddle MSOP or LFCSP | |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Low quiescent current of 45 µA and low shutdown current of less than 1 µA, making it ideal for battery-operated devices.
- Very low dropout voltage of 130 mV at a 500 mA load.
- Excellent power supply rejection ratio (PSRR) of 60 dB at 100 kHz.
- Internal soft start with a constant start-up time of 350 µs.
- Current limit and thermal overload protection.
- Logic controlled enable.
- Compact 8-lead exposed paddle MSOP and LFCSP packages.
- Stable operation with small 1.0 µF ceramic input and output capacitors.
Applications
- Digital camera and audio devices.
- Portable and battery-powered equipment.
- Automatic meter reading (AMR) meters.
- GPS and location management units.
- Medical instrumentation.
- Point of load power applications.
Q & A
- What is the input voltage range of the ADP124ARHZ-3.3-R7? The input voltage range is from 2.3 V to 5.5 V.
- What is the fixed output voltage of the ADP124ARHZ-3.3-R7? The fixed output voltage is 3.3 V.
- What is the maximum output current of the ADP124ARHZ-3.3-R7? The maximum output current is 500 mA.
- What is the quiescent current of the ADP124ARHZ-3.3-R7? The quiescent current is 45 µA.
- What is the dropout voltage of the ADP124ARHZ-3.3-R7? The dropout voltage is 130 mV at a 500 mA load.
- What is the power supply rejection ratio (PSRR) of the ADP124ARHZ-3.3-R7? The PSRR is 60 dB at 100 kHz.
- What type of packages are available for the ADP124ARHZ-3.3-R7? The device is available in 8-lead exposed paddle MSOP and LFCSP packages.
- What are the key protection features of the ADP124ARHZ-3.3-R7? The device includes current limit and thermal overload protection.
- What is the operating temperature range of the ADP124ARHZ-3.3-R7? The operating temperature range is from -40°C to +125°C.
- What are some typical applications of the ADP124ARHZ-3.3-R7? Typical applications include digital cameras, portable and battery-powered equipment, AMR meters, GPS units, medical instrumentation, and point of load power applications.
