Overview
The ADP7182ACPZN-5.0R7 is a CMOS, low dropout (LDO) linear regulator manufactured 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 regulating 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 adjustable version allowing the output voltage to range from −1.22 V to −VIN + VDO via an external feedback divider.
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 | −1.2 | −5 | V | |
| Output Voltage (Adjustable) | VOUT | −1.22 | −VIN + VDO | V | |
| Power Supply Rejection Ratio (PSRR) at 1 MHz | PSRR | 32 | 45 | dB | |
| Output Noise | 18 | μV rms | |||
| Enable Logic | Positive or Negative | ||||
| Operating Junction Temperature Range | TJ | −40 | 125 | °C | |
| Package Types | 5-lead TSOT, 6- and 8-lead LFCSP |
Key Features
- High input voltage range: −2.7 V to −28 V
- Low dropout voltage and high power supply rejection ratio (PSRR)
- Low output noise: 18 μV rms
- Positive or negative enable logic for flexibility
- Adjustable output voltage via external feedback divider
- Small footprint packages: 5-lead TSOT, 6- and 8-lead LFCSP
- High line and load transient response with a small 2.2 μF ceramic output capacitor
Applications
- Regulation of high-performance analog and mixed-signal circuits
- Communications and infrastructure
- Medical and healthcare devices
- Industrial and instrumentation applications
Q & A
- What is the input voltage range of the ADP7182? The input voltage range is from −2.7 V to −28 V.
- What is the maximum output current of the ADP7182? The maximum output current is −200 mA.
- Can the output voltage of the ADP7182 be adjusted? Yes, the output voltage can be adjusted via an external feedback divider.
- What are the available package types for the ADP7182? The ADP7182 is available in 5-lead TSOT, 6- and 8-lead LFCSP packages.
- What is the output noise of the ADP7182? The output noise is 18 μV rms.
- Does the ADP7182 support positive or negative enable logic? Yes, it supports both positive and negative enable logic.
- What is the operating junction temperature range of the ADP7182? The operating junction temperature range is from −40°C to 125°C.
- What type of capacitors are recommended for use with the ADP7182? X7R and X5R type capacitors are recommended.
- In which applications is the ADP7182 commonly used? It is commonly used in communications, medical and healthcare, industrial, and instrumentation applications.
- How does the ADP7182 achieve high line and load transient response? It achieves high line and load transient response with a small 2.2 μF ceramic output capacitor.
