Overview
The ADP7182AUJZ-R7 is a high-performance, low dropout (LDO) linear regulator produced by Analog Devices Inc. This CMOS-based regulator is designed to operate over a wide input voltage range from −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, offering excellent power supply rejection and low noise characteristics.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | −2.7 | −28 | V | |
| Output Current | IOUT | −200 | mA | ||
| Output Voltage Range (Fixed) | VOUT | −1.2 | −5 | V | |
| Output Voltage Range (Adjustable) | VOUT | −1.22 | −VIN + VDO | V | |
| Power Supply Rejection Ratio (PSRR) at 1 MHz | PSRR | 32 | 45 | dB | |
| Output Noise | VNOISE | 18 | μV rms | ||
| Operating Junction Temperature Range | TJ | −40 | 125 | °C | |
| Storage Temperature Range | TSTG | −65 | 150 | °C |
Key Features
- Low noise: 18 μV rms output noise independent of the output voltage.
- High power supply rejection ratio (PSRR): Up to 66 dB at 10 kHz.
- Wide input voltage range: −2.7 V to −28 V.
- High output current capability: Up to −200 mA.
- Adjustable output voltage: From −1.22 V to −VIN + VDO via an external feedback divider.
- Positive or negative enable logic for maximum flexibility.
- Small footprint packages: Available in 5-lead TSOT, 6- and 8-lead LFCSP packages.
- Current-limit and thermal overload protection.
- Soft start capability to reduce inrush current.
Applications
The ADP7182AUJZ-R7 is ideal for regulating high-performance analog and mixed-signal circuits. It is suitable for a variety of applications, including:
- High-performance audio and video systems.
- Medical devices requiring low noise and high stability.
- Industrial control systems and instrumentation.
- Telecommunication equipment.
- Automotive electronics.
Q & A
- What is the input voltage range of the ADP7182AUJZ-R7?
The input voltage range is from −2.7 V to −28 V.
- What is the maximum output current of the ADP7182AUJZ-R7?
The maximum output current is up to −200 mA.
- What are the available output voltage options for the ADP7182AUJZ-R7?
The regulator is available in fixed output voltages and an adjustable version that ranges from −1.22 V to −VIN + VDO.
- What is the output noise of the ADP7182AUJZ-R7?
The output noise is 18 μV rms independent of the output voltage.
- What is the power supply rejection ratio (PSRR) of the ADP7182AUJZ-R7?
The PSRR is up to 66 dB at 10 kHz.
- What are the package options for the ADP7182AUJZ-R7?
The regulator is available in 5-lead TSOT, 6- and 8-lead LFCSP packages.
- Does the ADP7182AUJZ-R7 support positive or negative enable logic?
Yes, it supports both positive and negative enable logic for maximum flexibility.
- What protection features does the ADP7182AUJZ-R7 have?
The regulator includes current-limit and thermal overload protection.
- What is the operating junction temperature range of the ADP7182AUJZ-R7?
The operating junction temperature range is from −40°C to +125°C.
- What is the storage temperature range of the ADP7182AUJZ-R7?
The storage temperature range is from −65°C to +150°C.
