Overview
The ADP121-ACBZ18R7 is a low dropout, linear regulator produced by Analog Devices Inc. This component is part of the ADP121 series, known for its low quiescent current and high efficiency. The ADP121-ACBZ18R7 operates from an input voltage range of 2.3 V to 5.5 V and provides a fixed output voltage of 1.8 V, with a maximum output current of 150 mA. It is particularly suited for battery-operated portable equipment due to its low power consumption and compact packaging.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range (VIN) | TJ = −40°C to +125°C | 2.3 | 5.5 | V | |
| Output Voltage (VOUT) | 1.8 | V | |||
| Output Current (IOUT) | 0 | 150 | mA | ||
| Quiescent Current (IGND) | IOUT = 0 μA | 11 | 21 | μA | |
| Quiescent Current (IGND) | IOUT = 150 μA | 30 | 40 | μA | |
| Dropout Voltage | IOUT = 150 mA | 135 | mV | ||
| Operating Temperature Range | −40 | +125 | °C | ||
| Package Type | 4-Ball WLCSP |
Key Features
- Low quiescent current: 11 μA with 0 μA load and 30 μA with 150 mA load.
- Low dropout voltage: 135 mV at 150 mA load.
- High efficiency due to low dropout voltage.
- Short-circuit protection and thermal overload protection.
- Optimized for stable operation with small 1 μF ceramic output capacitors.
- Compact packaging: Available in 4-ball 0.4 mm pitch WLCSP and 5-lead TSOT packages.
- Wide input voltage range: 2.3 V to 5.5 V.
- Fixed output voltage options ranging from 1.2 V to 3.3 V.
Applications
The ADP121-ACBZ18R7 is ideal for various portable and battery-operated applications due to its low power consumption and high efficiency. Some common applications include:
- Battery-operated portable equipment such as smartphones, tablets, and handheld devices.
- Wearable electronics like smartwatches and fitness trackers.
- IoT devices that require low power consumption.
- Medical devices that need reliable and efficient power regulation.
Q & A
- What is the input voltage range of the ADP121-ACBZ18R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the fixed output voltage of the ADP121-ACBZ18R7?
The fixed output voltage is 1.8 V.
- What is the maximum output current of the ADP121-ACBZ18R7?
The maximum output current is 150 mA.
- What is the quiescent current of the ADP121-ACBZ18R7 at full load?
The quiescent current at full load (150 mA) is 30 μA.
- Does the ADP121-ACBZ18R7 have built-in protection features?
Yes, it includes short-circuit protection and thermal overload protection.
- What type of capacitors are recommended for stable operation?
Small 1 μF ceramic output capacitors are recommended for stable operation.
- What are the available package types for the ADP121 series?
The ADP121 series is available in 4-ball 0.4 mm pitch WLCSP and 5-lead TSOT packages.
- What is the operating temperature range of the ADP121-ACBZ18R7?
The operating temperature range is from −40°C to +125°C.
- What are some typical applications for the ADP121-ACBZ18R7?
Typical applications include battery-operated portable equipment, wearable electronics, IoT devices, and medical devices.
- How does the ADP121-ACBZ18R7 improve efficiency in battery-operated devices?
The low dropout voltage and low quiescent current improve efficiency, allowing for longer battery life in portable devices.
