Overview
The ADP151AUJZ-1.8-R7, produced by Analog Devices Inc., is an ultralow noise, low dropout (LDO) linear regulator. It operates from an input voltage range of 2.2 V to 5.5 V and can provide up to 200 mA of output current. This regulator is designed for noise-sensitive analog and RF applications, achieving superior noise performance without the need for a noise bypass capacitor. The ADP151 is suitable for battery-operated portable equipment due to its low quiescent current and shutdown current consumption.
Key Specifications
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 2.2 | 5.5 | V | ||
| Output Current | IOUT | 200 | mA | |||
| Output Voltage Options | VOUT | 1.1 | 3.3 | V | ||
| Dropout Voltage at 200 mA | VDROPOUT | IOUT = 200 mA | 135 | 230 | mV | |
| Quiescent Current at 200 mA Load | IQ | IOUT = 200 mA | 265 | μA | ||
| Shutdown Current | ISD | 0.2 | μA | |||
| Noise Performance | 9 | μV rms | ||||
| Current Limit Threshold | ILIMIT | TJ = 0°C to +125°C | 220 | 400 | mA |
Key Features
- Ultralow Noise Performance: Achieves 9 µV rms noise without the need for a noise bypass capacitor, making it ideal for noise-sensitive analog and RF applications.
- Low Dropout Voltage: 135 mV at 200 mA load, improving efficiency and allowing operation over a wide input voltage range.
- Low Quiescent Current: 265 μA at 200 mA load, suitable for battery-operated portable equipment.
- Stable Operation with Small Capacitors: Stable with 1 µF ceramic input and output capacitors.
- Multiple Output Voltage Options: 16 fixed output voltage options ranging from 1.1 V to 3.3 V.
- Protection Circuits: Short-circuit and thermal overload protection to prevent damage in adverse conditions.
- Compact Packaging: Available in 5-lead TSOT, 6-lead LFCSP, and 4-ball WLCSP packages for the smallest footprint solution.
Applications
- Noise-Sensitive Analog and RF Applications: Ideal for applications requiring low noise, such as audio, medical devices, and RF circuits.
- Battery-Operated Portable Equipment: Suitable for devices like smartphones, tablets, and other portable electronics due to its low quiescent current and shutdown current consumption.
- High Performance, Space-Constrained Applications: Designed for stable operation with small ceramic capacitors, making it suitable for compact and high-performance systems.
Q & A
- What is the input voltage range of the ADP151?
The input voltage range of the ADP151 is from 2.2 V to 5.5 V.
- What is the maximum output current of the ADP151?
The ADP151 can provide up to 200 mA of output current.
- What is the noise performance of the ADP151?
The ADP151 achieves an ultralow noise performance of 9 µV rms.
- Does the ADP151 require a noise bypass capacitor?
No, the ADP151 does not require a noise bypass capacitor to achieve its ultralow noise performance.
- What are the available output voltage options for the ADP151?
The ADP151 is available with 16 fixed output voltage options ranging from 1.1 V to 3.3 V.
- What is the quiescent current of the ADP151 at full load?
The quiescent current of the ADP151 at 200 mA load is typically 265 μA.
- What kind of protection circuits does the ADP151 have?
The ADP151 includes short-circuit and thermal overload protection circuits.
- In what packages is the ADP151 available?
The ADP151 is available in 5-lead TSOT, 6-lead LFCSP, and 4-ball WLCSP packages.
- Is the ADP151 suitable for battery-operated devices?
- Can the ADP151 operate with small ceramic capacitors?
