Overview
The ADP124ACPZ-1.8-R7 is a low quiescent current, low dropout linear regulator produced by Analog Devices Inc. This device is part of the ADP124 series, designed to operate efficiently in a variety of applications requiring stable voltage regulation. It is particularly suited for battery-operated and portable equipment due to its low power consumption and high performance characteristics.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 2.3 | 5.5 | V | |
| Output Voltage | VOUT | 1.8 | V | ||
| Maximum Output Current | IOUT | 500 | mA | ||
| Quiescent Current (IOUT = 0 mA) | IGND | 45 | 105 | µA | |
| Quiescent Current (IOUT = 500 mA) | IGND | 210 | 280 | µA | |
| Dropout Voltage (IOUT = 500 mA) | VDO | 130 | mV | ||
| Power Supply Rejection Ratio (PSRR) at 100 kHz | PSRR | 60 | dB | ||
| Package Type | 8-lead LFCSP |
Key Features
- Low quiescent current: 45 µA (IOUT = 0 mA) and 210 µA (IOUT = 500 mA).
- Low dropout voltage: 130 mV at 500 mA load.
- High power supply rejection ratio (PSRR): 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.
Q & A
- What is the input voltage range of the ADP124ACPZ-1.8-R7? The input voltage range is from 2.3 V to 5.5 V.
- What is the fixed output voltage of the ADP124ACPZ-1.8-R7? The fixed output voltage is 1.8 V.
- What is the maximum output current of the ADP124ACPZ-1.8-R7? The maximum output current is 500 mA.
- What is the quiescent current of the ADP124ACPZ-1.8-R7 at no load? The quiescent current is 45 µA at no load.
- What is the dropout voltage of the ADP124ACPZ-1.8-R7 at 500 mA load? The dropout voltage is 130 mV at 500 mA load.
- Does the ADP124ACPZ-1.8-R7 have built-in protection features? Yes, it includes current limit and thermal overload protection.
- What type of package does the ADP124ACPZ-1.8-R7 come in? It comes in an 8-lead LFCSP package.
- What is the power supply rejection ratio (PSRR) of the ADP124ACPZ-1.8-R7 at 100 kHz? The PSRR is 60 dB at 100 kHz.
- Is the ADP124ACPZ-1.8-R7 suitable for battery-operated devices? Yes, it is designed for battery-operated and portable equipment due to its low quiescent current and high efficiency.
- What is the start-up time of the ADP124ACPZ-1.8-R7? The start-up time is 350 µs due to the internal soft start feature).
