Overview
The ADP5071ACPZ is a dual high-performance DC-to-DC regulator produced by Analog Devices Inc. This device is designed to generate independently regulated positive and negative output rails, making it versatile for a wide range of applications. The regulator operates with an input voltage range of 2.85 V to 15 V and can produce an adjustable positive output voltage up to +39 V and a negative output voltage down to −39 V below the input voltage. It features a high power density, low ripple voltage, and integrated safety features such as overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Input Voltage Range | 2.85 | - | 15 | V | - |
| Positive Output Voltage | - | - | +39 | V | Adjustable |
| Negative Output Voltage | -39 | - | - | V | Below input voltage |
| Main Switch Current (Boost) | - | 2.0 | - | A | - |
| Main Switch Current (Inverter) | - | 1.2 | - | A | - |
| Switching Frequency | 1.2 | - | 2.4 | MHz | Pin selected, synchronizable from 1.0 MHz to 2.6 MHz |
| Junction Temperature Range | -40 | - | 125 | °C | - |
| Package Type | - | - | - | - | 20-lead LFCSP or 20-lead TSSOP |
Key Features
- High Power Density: Ensures efficient operations and reduced board space requirements.
- Low Ripple Voltage: Maintains stable output voltages even under dynamic load conditions.
- Overvoltage Protection (OVP): Prevents damage from high input or output voltages.
- Accurate Regulation: Provides precise output voltage regulation.
- Safe Startup Sequence: Offers flexible start-up sequencing options including manual enable, simultaneous mode, positive supply first, and negative supply first.
- Overcurrent Protection (OCP): Protects against overcurrent conditions.
- Thermal Shutdown (TSD): Protects the device from overheating.
- Input Undervoltage Lockout (UVLO): Ensures the device operates within a safe input voltage range).
- Programmable Slew Rate Control: Reduces electromagnetic interference (EMI)).
- True Shutdown: Completely disconnects the loads from the input supply during shutdown).
Applications
- Amplifier Bias Control: Supplies stable voltages for amplifier biasing and power management).
- Dual Output Supply: Provides reliable, dual-output supplies ideal for applications such as dual-voltage amplifiers or power management systems).
- Power Supply for RF PA: Suitable for radio frequency power amplifier biasing).
- Optical Module Driver: Used in optical module supply applications).
- CCD Bias Voltage: Provides stable, precision voltages for charge-coupled device (CCD) systems).
- Multi-channel DAC: Used in digital-to-analog converter (DAC) systems where precise control is necessary).
- Bipolar Amplifier Drive: Suitable for bipolar power supplies and high-frequency amplifiers).
- Integrated DAC System: Used in integrated digital-to-analog converters (DACs)).
Q & A
- Q: What is the typical application of the ADP5071ACPZ?
A: The primary applications include amplifier bias control, dual output supply, power supply for RF PA, integrated DAC system, and similar applications where a reliable, high-performance voltage regulator is required).
- Q: Can this device handle high-frequency amplifiers?
A: Yes, the ADP5071ACPZ can be used in high-frequency amplifiers, ensuring stable operation under demanding conditions).
- Q: Is there any guarantee against damage from power cycling or fault conditions?
A: The ADP5071ACPZ includes overvoltage protection (OVP) and overcurrent protection (OCP) to prevent damage from power cycling, fault conditions, or dynamic loads).
- Q: What benefits does the compact design and high-efficiency power conversion bring to users?
A: The compact design reduces board space requirements, while high-efficiency power conversion enables efficient operations and minimizes energy consumption).
- Q: What is the input voltage range of the ADP5071ACPZ?
A: The input voltage range is from 2.85 V to 15 V).
- Q: What are the switching frequencies available for the ADP5071ACPZ?
A: The device operates at pin-selected 1.2 MHz or 2.4 MHz switching frequencies and can be synchronized with an external oscillator from 1.0 MHz to 2.6 MHz).
- Q: What safety features are included in the ADP5071ACPZ?
A: The device includes overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO)).
- Q: What is the maximum output voltage for the positive rail?
A: The maximum positive output voltage is up to +39 V).
- Q: What is the maximum negative output voltage below the input voltage?
A: The maximum negative output voltage is down to −39 V below the input voltage).
- Q: What package types are available for the ADP5071ACPZ?
A: The device is available in 20-lead LFCSP and 20-lead TSSOP packages).
