Overview
The ADP7182AUJZ-2.5-R7 is a CMOS, low dropout (LDO) linear regulator produced by Analog Devices Inc. This regulator operates from an input voltage range of −2.7 V to −28 V and provides up to −200 mA of output current. It is designed for high-performance analog and mixed-signal circuits, offering high power supply rejection and low noise. The ADP7182 is available in both fixed and adjustable output voltage versions, with the ADP7182AUJZ-2.5-R7 specifically providing a fixed output voltage of −2.5 V. The device features an advanced proprietary architecture that ensures excellent line and load transient response with a small 2.2 μF ceramic output capacitor.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | −2.7 | −28 | V | |
| Output Current | IOUT | −200 | mA | ||
| Output Voltage (Fixed) | VOUT | −2.5 | V | ||
| Output Voltage Range (Adjustable) | VOUT | −1.22 | −VIN + VDO | V | |
| Output Noise (rms) | 18 | μV | |||
| Power Supply Rejection Ratio (PSRR) at 1 MHz | PSRR | 32 | 45 | dB | |
| Operating Junction Temperature Range | TJ | −40 | 125 | °C | |
| Storage Temperature Range | TSTG | −65 | 150 | °C | |
| Package Type | TSOT-23-5 |
Key Features
- High input voltage range: −2.7 V to −28 V
- Up to −200 mA of output current
- Low dropout voltage and high power supply rejection ratio (PSRR)
- Low output noise: 18 μV rms
- Adjustable and fixed output voltage options
- Enable logic compatible with positive or negative logic levels
- Small footprint packages: TSOT-23-5, LFCSP
- High performance suitable for analog and mixed-signal circuits
Applications
The ADP7182AUJZ-2.5-R7 is suitable for various high-performance applications, including:
- Communications and infrastructure
- Medical and healthcare devices
- Industrial and instrumentation systems
- Analog and mixed-signal circuits requiring high power supply rejection and low noise
Q & A
- What is the input voltage range of the ADP7182AUJZ-2.5-R7?
The input voltage range is from −2.7 V to −28 V. - What is the maximum output current of the ADP7182AUJZ-2.5-R7?
The maximum output current is up to −200 mA. - What is the fixed output voltage of the ADP7182AUJZ-2.5-R7?
The fixed output voltage is −2.5 V. - What is the output noise of the ADP7182AUJZ-2.5-R7?
The output noise is 18 μV rms. - What are the package options for the ADP7182?
The ADP7182 is available in TSOT-23-5, 6- and 8-lead LFCSP packages. - What is the operating junction temperature range of the ADP7182AUJZ-2.5-R7?
The operating junction temperature range is from −40°C to +125°C. - Is the enable logic of the ADP7182 compatible with both positive and negative logic levels?
Yes, the enable logic is compatible with both positive and negative logic levels. - What type of capacitors are recommended for use with the ADP7182?
X7R and X5R type capacitors are recommended; Y5V and Z5U capacitors are not recommended. - What are some typical applications of the ADP7182AUJZ-2.5-R7?
Typical applications include communications and infrastructure, medical and healthcare devices, and industrial and instrumentation systems. - How does the ADP7182 achieve high power supply rejection and low noise?
The ADP7182 uses an advanced proprietary architecture to achieve high power supply rejection and low noise.
