Overview
The ADP124ACPZ-3.3-R7 is a low quiescent current, low dropout linear voltage regulator produced by Analog Devices Inc. This regulator is designed to operate from an input voltage range of 2.3 V to 5.5 V and can provide up to 500 mA of output current. It is particularly suited for battery-operated portable equipment due to its low quiescent current and high efficiency. The ADP124 series offers 31 fixed-output voltage options, with the ADP124ACPZ-3.3-R7 specifically providing a fixed output voltage of 3.3 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.3 | 5.5 | V | |
| Output Voltage | 3.3 | V | ||
| Maximum Output Current | 500 | mA | ||
| Quiescent Current (IOUT = 500 mA) | 210 | 280 | µA | |
| Dropout Voltage (IOUT = 500 mA) | 130 | mV | ||
| Load Regulation (IOUT = 1 mA to 500 mA) | 0.0005 | 0.001 | %/mA | |
| Package Type | 8-lead exposed paddle MSOP and LFCSP |
Key Features
- Low quiescent current of 210 µA at 500 mA load, making it ideal for battery-operated devices.
- Low dropout voltage of 130 mV at 500 mA load, enhancing efficiency and allowing operation over a wide input voltage range.
- Fixed output voltage of 3.3 V, with other models offering adjustable output voltage options.
- Excellent power supply rejection ratio (PSRR) of 60 dB at 100 kHz.
- Optimized for use with small 1.0 µF ceramic input and output capacitors.
- Internal soft start with a constant start-up time of 350 µs.
- Current limit and thermal overload protection.
- Logic controlled enable.
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 ADP124ACPZ-3.3-R7?
The input voltage range is from 2.3 V to 5.5 V. - What is the maximum output current of the ADP124ACPZ-3.3-R7?
The maximum output current is 500 mA. - What is the quiescent current of the ADP124ACPZ-3.3-R7 at a 500 mA load?
The quiescent current is 210 µA. - What is the dropout voltage of the ADP124ACPZ-3.3-R7 at a 500 mA load?
The dropout voltage is 130 mV. - What type of capacitors is the ADP124ACPZ-3.3-R7 optimized for?
The regulator is optimized for use with small 1.0 µF ceramic input and output capacitors. - Does the ADP124ACPZ-3.3-R7 have built-in protection features?
Yes, it includes current limit and thermal overload protection. - What is the typical start-up time of the ADP124ACPZ-3.3-R7?
The internal soft start provides a constant start-up time of 350 µs. - What are some common applications of the ADP124ACPZ-3.3-R7?
Common applications include digital cameras, portable and battery-powered equipment, AMR meters, GPS units, medical instrumentation, and point of load power. - What is the package type of the ADP124ACPZ-3.3-R7?
The package types available are 8-lead exposed paddle MSOP and LFCSP. - How is the output voltage controlled in the ADP124ACPZ-3.3-R7?
The ADP124ACPZ-3.3-R7 provides a fixed output voltage of 3.3 V, while other models in the series offer adjustable output voltage options.
