Overview
The ADP5071AREZ-R7 is a high-performance dual DC-DC regulator produced by Analog Devices, Inc. This component is designed to generate independently regulated positive and negative output rails, making it versatile for a wide range of applications. The regulator operates within 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.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Manufacturer | Analog Devices, Inc. | ||
| Part Number | ADP5071AREZ-R7 | ||
| Package Type | HTSSOP | 20-lead | |
| Input Voltage Range | 2.85 V to 15 V | V | |
| Positive Output Voltage Range | Up to +39 V | V | Adjustable |
| Negative Output Voltage Range | Down to -39 V | V | Adjustable |
| Switching Frequency | 1.2 MHz / 2.4 MHz | Hz | Optional external frequency synchronization from 1.0 MHz to 2.6 MHz |
| Operating Temperature Range | -40°C to +125°C | °C | Junction temperature range |
| Main Switch Current | 1.2 A | A | |
| Protection Features | OCP, OVP, TSD, UVLO | Overcurrent protection, overvoltage protection, thermal shutdown, input undervoltage lockout |
Key Features
- Independent positive and negative output rails with adjustable voltages up to +39 V and down to -39 V.
- High-performance DC-DC regulator with integrated 1.2 A main switch.
- Operates in SEPIC (Single-Ended Primary-Inductor Converter) configuration for automatic step-up/step-down and inverting regulator.
- Programmable slew rate control for reducing electromagnetic interference (EMI).
- Flexible start-up sequencing options: manual enable, simultaneous mode, positive supply first, and negative supply first.
- Fixed internal or resistor programmable soft start timer to prevent inrush current at power-up.
- True shutdown feature for both positive and negative outputs.
- Protection features include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).
Applications
- Bipolar amplifiers, ADCs, DACs, and multiplexers.
- Charge-coupled device (CCD) bias supply.
- Optical module supply.
- RF power amplifier (PA) bias.
Q & A
- What is the input voltage range of the ADP5071AREZ-R7?
The input voltage range is from 2.85 V to 15 V.
- What are the maximum positive and negative output voltages of the ADP5071AREZ-R7?
The maximum positive output voltage is up to +39 V, and the maximum negative output voltage is down to -39 V below the input voltage.
- What are the switching frequencies available for the ADP5071AREZ-R7?
The switching frequencies are 1.2 MHz and 2.4 MHz, with optional external frequency synchronization from 1.0 MHz to 2.6 MHz.
- What protection features are included in the ADP5071AREZ-R7?
The protection features include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).
- What is the operating temperature range of the ADP5071AREZ-R7?
The operating temperature range is from -40°C to +125°C.
- What package types are available for the ADP5071AREZ-R7?
The component is available in a 20-lead HTSSOP package.
- Does the ADP5071AREZ-R7 support true shutdown?
- What are the start-up sequencing options for the ADP5071AREZ-R7?
The start-up sequencing options include manual enable, simultaneous mode, positive supply first, and negative supply first.
- How does the ADP5071AREZ-R7 reduce electromagnetic interference (EMI)?
The component includes programmable slew rate control circuitry for the MOSFET driver stage to reduce EMI.
- What are some typical applications of the ADP5071AREZ-R7?
Typical applications include bipolar amplifiers, ADCs, DACs, multiplexers, CCD bias supply, optical module supply, and RF power amplifier bias.
