Overview
The ADP7182ACPZ-5.0-R7 is a CMOS, low dropout (LDO) linear regulator produced by Analog Devices Inc. This regulator is designed to operate from a wide input voltage range of -2.7 V to -28 V and provides up to 200 mA of output current. It is particularly suited for regulating high-performance analog and mixed-signal circuits operating from high voltage rails. The ADP7182 features an advanced proprietary architecture that ensures high power supply rejection and low noise, along with excellent line and load transient response.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | -2.7 | -28 | V | |
| Output Voltage | VOUT | -1.22 | -5.0 | -VIN + VDO | V |
| Output Current | IOUT | 200 | mA | ||
| Output Noise | 18 | μV rms | |||
| Power Supply Rejection Ratio (PSRR) at 1 MHz | PSRR | 32 | 45 | dB | |
| Enable Logic Levels | Positive or Negative | ||||
| Package Type | LFCSP-8 (3x3 mm) | ||||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C |
Key Features
- High input voltage range: -2.7 V to -28 V
- Low dropout voltage and high output current up to 200 mA
- High power supply rejection ratio (PSRR) and low output noise (18 μV rms)
- Excellent line and load transient response with a small 2.2 μF ceramic output capacitor
- Adjustable output voltage via an external feedback divider
- Positive or negative enable logic for maximum flexibility
- Compact package options including 5-lead TSOT and 6- and 8-lead LFCSP for a small footprint
- Current-limit and thermal overload protection
Applications
- 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 ADP7182 operates from -2.7 V to -28 V.
- What is the maximum output current of the ADP7182?
The maximum output current is up to 200 mA.
- What is the output noise of the ADP7182?
The output noise is 18 μV rms.
- What types of enable logic does the ADP7182 support?
The ADP7182 supports both positive and negative enable logic levels.
- What are the package options for the ADP7182?
The ADP7182 is available in 5-lead TSOT and 6- and 8-lead LFCSP packages.
- What is the operating junction temperature range of the ADP7182?
The operating junction temperature range is from -40°C to 125°C.
- Does the ADP7182 have current-limit and thermal overload protection?
- 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.
- Can the output voltage of the ADP7182 be adjusted?
- What are some typical applications of the ADP7182?
The ADP7182 is typically used in high-performance analog and mixed-signal circuits, communications, medical devices, and industrial applications.
