Overview
The ADP121-AUJZ12R7 is a 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 provides up to 150 mA of output current. It is particularly noted for its low quiescent current of 30 μA at full load, making it ideal for battery-operated portable equipment. The ADP121-AUJZ12R7 is available in a compact 5-lead TSOT package, optimizing for small footprint solutions in various portable applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | TJ = −40°C to +125°C | 2.3 | 5.5 | V | |
| Output Voltage | VOUT | 1.2 | 3.3 | V | ||
| Maximum Output Current | IOUT | 150 | mA | |||
| Quiescent Current | IGND | IOUT = 150 mA | 30 | 40 | μA | |
| Dropout Voltage | VDO | IOUT = 150 mA | 135 | mV | ||
| UnderVoltage Lockout (UVLO) | UVLORISE | Input Voltage Rising | 2.25 | V | ||
| UnderVoltage Lockout (UVLO) | UVLOFALL | Input Voltage Falling | 1.5 | V | ||
| Output Noise | OUTNOISE | 10 Hz to 100 kHz, VIN = 5 V, VOUT = 1.2 V | 40 | μV rms | ||
| Power Supply Rejection Ratio (PSRR) | PSRR | 10 kHz, VIN = 5 V, VOUT = 1.2 V | 70 | dB | ||
| Operating Temperature Range | TJ | -40 | +125 | °C | ||
| Package Type | TSOT-23-5 |
Key Features
- Low dropout voltage of 135 mV at 150 mA load, enhancing efficiency and allowing operation over a wide input voltage range.
- Low quiescent current of 30 μA at full load, making it suitable for battery-operated devices.
- Available in output voltages ranging from 1.2 V to 3.3 V.
- Optimized for stable operation with small 1 μF ceramic output capacitors.
- Short-circuit protection and thermal overload protection to prevent damage in adverse conditions.
- Compact 5-lead TSOT and 4-ball 0.4 mm pitch halide-free WLCSP packages for minimal board area.
Applications
The ADP121-AUJZ12R7 is designed for use in a variety of portable applications, including battery-operated devices, handheld electronics, and other low-power systems where efficiency and compact size are critical. It is also suitable for use in general-purpose voltage regulation in consumer electronics, industrial control systems, and medical devices.
Q & A
- What is the input voltage range of the ADP121-AUJZ12R7? The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum output current of the ADP121-AUJZ12R7? The maximum output current is 150 mA.
- What is the quiescent current of the ADP121-AUJZ12R7 at full load? The quiescent current is 30 μA at full load.
- What are the available output voltages for the ADP121-AUJZ12R7? The available output voltages range from 1.2 V to 3.3 V.
- What type of protection does the ADP121-AUJZ12R7 have? It has short-circuit protection and thermal overload protection.
- What is the typical output noise of the ADP121-AUJZ12R7? The typical output noise is 40 μV rms for VOUT = 1.2 V.
- What is the power supply rejection ratio (PSRR) of the ADP121-AUJZ12R7? The PSRR is 70 dB at 10 kHz for VOUT = 1.2 V.
- What are the package options for the ADP121-AUJZ12R7? It is available in 5-lead TSOT and 4-ball 0.4 mm pitch halide-free WLCSP packages.
- What is the operating temperature range of the ADP121-AUJZ12R7? The operating temperature range is from -40°C to +125°C.
- Why is the ADP121-AUJZ12R7 suitable for battery-operated devices? It is suitable due to its low quiescent current and low dropout voltage, which enhance efficiency and prolong battery life.
