Overview
The ADP151AUJZ-1.2-R7, produced by Analog Devices Inc., is an ultralow noise, low dropout (LDO) linear regulator. This device operates from an input voltage range of 2.2 V to 5.5 V and provides up to 200 mA of output current. It is designed to achieve superior noise performance without the need for a noise bypass capacitor, making it ideal for noise-sensitive analog and RF applications. The ADP151 is also optimized for use with small 1 µF ceramic capacitors, which is beneficial for high-performance, space-constrained applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 2.2 | 5.5 | V | |
| Output Voltage | VOUT | 1.1 | 3.3 | V | |
| Maximum Output Current | IOUT | 200 | mA | ||
| Dropout Voltage at 200 mA | VDROPOUT | 135 | 230 | mV | |
| Quiescent Current (IGND) at IOUT = 0 mA | IGND | 10 | µA | ||
| Quiescent Current (IGND) at IOUT = 200 mA | IGND | 265 | µA | ||
| Shutdown Current | < 1 | µA | |||
| Noise Performance | 9 | µV rms |
Key Features
- Ultralow noise performance: 9 µV rms without the need for a noise bypass capacitor.
- Low dropout voltage: 135 mV at 200 mA load.
- Low quiescent current: 10 µA with IOUT = 0 mA and 265 µA with IOUT = 200 mA.
- Low shutdown current: < 1 µA.
- Stable operation with 1 µF ceramic input and output capacitors.
- Short-circuit and thermal overload protection.
- Available in TSOT, LFCSP, and WLCSP packages for compact designs.
Applications
The ADP151AUJZ-1.2-R7 is suitable for a variety of applications, including:
- Noise-sensitive analog and RF circuits.
- Battery-operated portable equipment due to its low quiescent current.
- High-performance, space-constrained applications where small ceramic capacitors are necessary.
- General-purpose power supply needs in low-power systems.
Q & A
- What is the input voltage range of the ADP151AUJZ-1.2-R7? The input voltage range is from 2.2 V to 5.5 V.
- What is the maximum output current of the ADP151AUJZ-1.2-R7? The maximum output current is 200 mA.
- What is the typical noise performance of the ADP151AUJZ-1.2-R7? The typical noise performance is 9 µV rms.
- Does the ADP151AUJZ-1.2-R7 require a noise bypass capacitor? No, it does not require a noise bypass capacitor.
- What are the package options available for the ADP151AUJZ-1.2-R7? It is available in TSOT, LFCSP, and WLCSP packages.
- What is the quiescent current of the ADP151AUJZ-1.2-R7 at full load? The quiescent current is typically 265 µA at 200 mA load.
- Does the ADP151AUJZ-1.2-R7 have built-in protection features? Yes, it includes short-circuit and thermal overload protection.
- What type of capacitors is the ADP151AUJZ-1.2-R7 stable with? It is stable with 1 µF ceramic input and output capacitors.
- What is the typical shutdown current of the ADP151AUJZ-1.2-R7? The typical shutdown current is less than 1 µA.
- What are some common applications for the ADP151AUJZ-1.2-R7? It is commonly used in noise-sensitive analog and RF circuits, battery-operated portable equipment, and high-performance, space-constrained applications.
