Overview
The ADP7185ACPZN3.3-R7 is a low dropout (LDO) linear regulator produced by Analog Devices Inc. This device is designed using complementary metal oxide semiconductor (CMOS) technology and is optimized for high performance and low noise applications. It operates within an input voltage range of 2.0 V to 5.5 V and can provide up to 500 mA of output current. The regulator is available in a compact 8-lead, 2 mm × 2 mm LFCSP package, making it suitable for applications requiring a small footprint and excellent thermal performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.0 V to 5.5 V | V |
| Maximum Output Current | 500 mA | mA |
| Fixed Output Voltage Options | −0.5 V, −1.0 V, −1.2 V, −1.5 V, −1.8 V, −2.0 V, −2.5 V, −3.0 V, −3.3 V | V |
| Adjustable Output Voltage Range | −0.5 V to −VIN + 0.5 V | V |
| Output Noise | 4 μV rms (100 Hz to 100 kHz) | μV |
| Power Supply Rejection Ratio (PSRR) | High PSRR | - |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-lead LFCSP | - |
| Enable Logic | Positive or negative logic levels | - |
Key Features
- Low dropout voltage and high power supply rejection ratio (PSRR) for excellent line and load transient response.
- Low output noise of 4 μV rms from 100 Hz to 100 kHz, independent of the output voltage.
- Adjustable output voltage option using an external feedback divider, allowing output voltages from −0.5 V to −VIN + 0.5 V.
- Enable logic feature that can interface with positive or negative logic levels for maximum flexibility.
- Compact 8-lead, 2 mm × 2 mm LFCSP package for small footprint and excellent thermal performance.
- Typical hysteresis of 90 mV within the UVLO circuitry to prevent oscillation due to noise from VIN.
Applications
The ADP7185ACPZN3.3-R7 is suitable for various high-performance analog and mixed-signal circuits that require low noise and high stability. Some typical applications include:
- Analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
- High-precision measurement instruments.
- Audio and video equipment requiring low noise power supplies.
- Medical devices and diagnostic equipment.
- Industrial control systems and automation.
Q & A
- What is the input voltage range of the ADP7185ACPZN3.3-R7?
The input voltage range is from 2.0 V to 5.5 V.
- What is the maximum output current of the ADP7185ACPZN3.3-R7?
The maximum output current is 500 mA.
- What are the fixed output voltage options available for the ADP7185ACPZN3.3-R7?
The fixed output voltage options include −0.5 V, −1.0 V, −1.2 V, −1.5 V, −1.8 V, −2.0 V, −2.5 V, −3.0 V, and −3.3 V.
- Can the output voltage of the ADP7185ACPZN3.3-R7 be adjusted?
- What is the output noise of the ADP7185ACPZN3.3-R7?
The output noise is 4 μV rms from 100 Hz to 100 kHz.
- What is the operating temperature range of the ADP7185ACPZN3.3-R7?
The operating temperature range is from −40°C to +125°C.
- What package type is the ADP7185ACPZN3.3-R7 available in?
The device is available in an 8-lead LFCSP package.
- How does the enable logic feature of the ADP7185ACPZN3.3-R7 work?
The enable logic feature can interface with positive or negative logic levels for maximum flexibility.
- What is the typical hysteresis within the UVLO circuitry of the ADP7185ACPZN3.3-R7?
The typical hysteresis is 90 mV.
- What are some common applications of the ADP7185ACPZN3.3-R7?
Common applications include analog-to-digital converters, digital-to-analog converters, high-precision measurement instruments, audio and video equipment, medical devices, and industrial control systems.
