Overview
The ADP125ARHZ is a low quiescent current, low dropout linear regulator manufactured by Analog Devices Inc. This component is designed to provide high efficiency and stability in a variety of applications, particularly in battery-operated and space-constrained devices. The ADP125ARHZ is the adjustable version of the ADP124/ADP125 series, allowing the output voltage to be set between 0.8 V and 5.0 V using an external voltage divider. This regulator is ideal for applications requiring low power consumption and high performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 V to 5.5 V | V |
| Output Current | 500 mA | mA |
| Adjustable Output Voltage Range | 0.8 V to 5.0 V | V |
| Dropout Voltage | 130 mV | mV |
| Quiescent Current | 45 µA | µA |
| Shutdown Current | <1 µA | µA |
| Accuracy | 1% | % |
| Package Type | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad | |
| Number of Pins | 8 | |
| RoHS Compliance | Yes |
Key Features
- Low quiescent current of 45 µA and low shutdown current of less than 1 µA, making it suitable for battery-operated devices.
- Low dropout voltage of 130 mV at a 500 mA load, enhancing efficiency and allowing operation over a wide input voltage range.
- Excellent power supply rejection ratio (PSRR) of 60 dB at 100 kHz and good load/line transient response.
- Internal soft start with a constant start-up time of 350 µs.
- Current limit and thermal overload protection for reliability.
- Logic-controlled enable feature.
- Compact 8-lead exposed paddle MSOP and LFCSP packages.
Applications
- Digital cameras 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 ADP125ARHZ?
The input voltage range is from 2.3 V to 5.5 V. - What is the maximum output current of the ADP125ARHZ?
The maximum output current is 500 mA. - How is the output voltage adjusted in the ADP125ARHZ?
The output voltage can be adjusted between 0.8 V and 5.0 V using an external voltage divider. - What is the dropout voltage of the ADP125ARHZ?
The dropout voltage is 130 mV. - What is the quiescent current of the ADP125ARHZ?
The quiescent current is 45 µA. - What are the package options for the ADP125ARHZ?
The package options are 8-TSSOP and 8-MSOP with an exposed pad. - Is the ADP125ARHZ RoHS compliant?
Yes, the ADP125ARHZ is RoHS compliant. - What are some key applications of the ADP125ARHZ?
Key applications include digital cameras, portable and battery-powered equipment, AMR meters, GPS units, medical instrumentation, and point of load power applications. - Does the ADP125ARHZ have built-in protection features?
Yes, it includes current limit and thermal overload protection. - How does the ADP125ARHZ handle start-up?
The ADP125ARHZ has an internal soft start feature with a constant start-up time of 350 µs.
