Overview
The ADP151ACBZ-3.3-R7 is an ultralow noise, low dropout (LDO) linear regulator produced by Analog Devices Inc. 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 specifically designed for noise-sensitive analog and RF applications, offering superior noise performance without the need for a noise bypass capacitor. The ADP151 is ideal for battery-operated, portable equipment due to its low quiescent current and low shutdown current consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.2 V to 5.5 V | V |
| Output Voltage | 3.3 V (fixed) | V |
| Maximum Output Current | 200 mA | mA |
| Dropout Voltage | 135 mV (at 200 mA load) | mV |
| Quiescent Current | 265 μA (typical at 200 mA load) | μA |
| Shutdown Current | <1 μA | μA |
| Noise Performance | 9 μV rms | μV rms |
| Input and Output Capacitors | 1 μF ceramic (recommended) | F |
| Package Options | TSOT, LFCSP, WLCSP (4-ball, 0.4 mm pitch) |
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: 265 μA (typical) at 200 mA load.
- Low shutdown current: <1 μA.
- Stable operation with small 1 μF ceramic input and output capacitors.
- Short-circuit and thermal overload protection.
- Internal pull-down resistor on the EN input.
- Available in TSOT, LFCSP, and WLCSP packages for compact designs.
Applications
The ADP151ACBZ-3.3-R7 is suitable for a variety of applications, including:
- Noise-sensitive analog and RF circuits.
- Battery-operated portable equipment.
- High-performance, space-constrained designs.
- Low-power consumer electronics.
- Medical devices requiring low noise power supplies.
Q & A
- What is the input voltage range of the ADP151ACBZ-3.3-R7?
The input voltage range is from 2.2 V to 5.5 V. - What is the maximum output current of the ADP151ACBZ-3.3-R7?
The maximum output current is 200 mA. - What is the typical quiescent current of the ADP151ACBZ-3.3-R7 at full load?
The typical quiescent current is 265 μA at 200 mA load. - Does the ADP151ACBZ-3.3-R7 require a noise bypass capacitor?
No, it does not require a noise bypass capacitor due to its ultralow noise performance. - What are the package options available for the ADP151ACBZ-3.3-R7?
The package options include TSOT, LFCSP, and WLCSP (4-ball, 0.4 mm pitch). - What is the dropout voltage of the ADP151ACBZ-3.3-R7 at 200 mA load?
The dropout voltage is 135 mV at 200 mA load. - Is the ADP151ACBZ-3.3-R7 protected against short-circuit and thermal overload?
Yes, it includes short-circuit and thermal overload protection circuits. - What type of capacitors are recommended for input and output?
1 μF ceramic capacitors are recommended. - What is the shutdown current consumption of the ADP151ACBZ-3.3-R7?
The shutdown current consumption is typically less than 1 μA. - What are some typical applications for the ADP151ACBZ-3.3-R7?
Typical applications include noise-sensitive analog and RF circuits, battery-operated portable equipment, and high-performance, space-constrained designs.
