Overview
The ADP5070AREZ-R7, produced by Analog Devices Inc., is a dual high-performance DC-to-DC regulator designed to generate independently regulated positive and negative output rails. This component is part of the ADP5070 family and is particularly suited for applications requiring a wide input voltage range and high precision output regulation.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Input Voltage Range | 2.85 V | 15 V | |||
| Positive Output Voltage | 39 V | Adjustable | |||
| Negative Output Voltage | -39 V | Below input voltage, adjustable | |||
| Boost Switch Current | 1.0 A | ||||
| Inverter Switch Current | 0.6 A | ||||
| Switching Frequency | 1.2 MHz | 2.4 MHz | Pin selected, external synchronization from 1.0 MHz to 2.6 MHz | ||
| Junction Temperature Range | -40°C | 125°C | |||
| Package Type | 20-lead LFCSP or 20-lead TSSOP |
Key Features
- Wide input supply voltage range: 2.85 V to 15 V
- Independently regulated positive and negative outputs
- Adjustable positive output up to 39 V and negative output down to -39 V below input voltage
- Integrated 1.0 A boost switch and 0.6 A inverter switch
- Optional single-ended primary-inductor converter (SEPIC) configuration for automatic step-up/step-down
- True shutdown for both positive and negative outputs
- Resistor programmable soft start timer and slew rate control for lower system noise
- Individual precision enable and flexible start-up sequence control
- Out-of-phase operation
- UVLO, OCP, OVP, and TSD protection
Applications
The ADP5070AREZ-R7 is suitable for a variety of applications that require dual regulated power supplies, such as:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- High-performance computing and data storage systems
Q & A
- What is the input voltage range of the ADP5070AREZ-R7?
The input voltage range is from 2.85 V to 15 V. - What are the maximum positive and negative output voltages?
The maximum positive output voltage is 39 V, and the maximum negative output voltage is -39 V below the input voltage. - What are the switching frequencies available for this regulator?
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 kind of protection features does the ADP5070AREZ-R7 have?
The component includes UVLO, OCP, OVP, and TSD protection. - What are the package options for the ADP5070AREZ-R7?
The component is available in 20-lead LFCSP and 20-lead TSSOP packages. - How does the soft start feature work?
The soft start feature is resistor programmable to prevent inrush current at power-up. - Can the start-up sequence be controlled?
Yes, the start-up sequence can be controlled with options for manual enable, simultaneous mode, positive supply first, or negative supply first. - What is the purpose of the slew rate control?
The slew rate control is used to reduce electromagnetic interference (EMI) by adjusting the MOSFET driver stage. - Is true shutdown available for both outputs?
Yes, both regulators completely disconnect the loads from the input supply during shutdown. - What is the junction temperature range for the ADP5070AREZ-R7?
The junction temperature range is from -40°C to 125°C.
