ADP5070AREZ
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Analog Devices Inc. ADP5070AREZ

Manufacturer No:
ADP5070AREZ
Manufacturer:
Analog Devices Inc.
Package:
Bulk
Description:
IC REG BST SEPIC ADJ DL 20TSSOP
Delivery:
Payment:
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Product Introduction

Overview

The ADP5070AREZ, produced by Analog Devices Inc., is a dual high-performance DC-to-DC regulator designed to generate independently regulated positive and negative voltage rails. This regulator supports a wide input voltage range of 2.85 V to 15 V, making it versatile for various applications. It features integrated main switches in both regulators, enabling the generation of an adjustable positive output voltage up to +39 V and a negative output voltage down to −39 V below the input voltage.

Key Specifications

ParameterMinTypMaxUnitTest Conditions/Comments
Input Supply Voltage Range2.8515VPVIN1, PVIN2, PVINSYS
Switching Frequency1.22.42.6MHzPin selected or external oscillator
Positive Output Voltage+39VAdjustable
Negative Output Voltage−39VBelow input voltage
Boost Switch Current1.0A
Inverter Switch Current0.6A
Operating Temperature−40+125°CJunction temperature range
Package Type20-lead TSSOP-EP

Key Features

  • Wide input supply voltage range: 2.85 V to 15 V
  • Adjustable positive and negative output voltages up to +39 V and down to −39 V, respectively
  • Integrated main switches for boost and inverting regulators
  • Programmable slew rate control for reduced EMI
  • Flexible start-up sequencing: manual enable, simultaneous mode, positive supply first, and negative supply first
  • Fixed internal or resistor programmable soft start timer to prevent inrush current
  • True shutdown with complete disconnection of loads from the input supply
  • Protection features: overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO)

Applications

  • Bipolar amplifiers
  • Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs)
  • Multiplexers
  • Charge-Coupled Device (CCD) bias supply
  • Optical module supply
  • RF power amplifier (PA) bias

Q & A

  1. What is the input voltage range of the ADP5070? The input voltage range is 2.85 V to 15 V.
  2. What are the maximum positive and negative output voltages of the ADP5070? The maximum positive output voltage is +39 V, and the maximum negative output voltage is −39 V below the input voltage.
  3. What are the switching frequencies available for the ADP5070? The ADP5070 operates at pin-selected frequencies of 1.2 MHz or 2.4 MHz, and it can also synchronize with an external oscillator from 1.0 MHz to 2.6 MHz.
  4. What protection features does the ADP5070 include? The ADP5070 includes overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).
  5. What is the operating temperature range of the ADP5070? The operating temperature range is −40°C to +125°C.
  6. What package types are available for the ADP5070? The ADP5070 is available in a 20-lead TSSOP-EP package.
  7. Does the ADP5070 support flexible start-up sequencing? Yes, it supports manual enable, simultaneous mode, positive supply first, and negative supply first start-up sequencing.
  8. How does the ADP5070 manage inrush current during power-up? The ADP5070 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up.
  9. What happens to the loads during shutdown of the ADP5070? During shutdown, both regulators completely disconnect the loads from the input supply to provide a true shutdown.
  10. Can the ADP5070 be used in noise-sensitive applications? Yes, the ADP5070 features programmable slew rate control to reduce electromagnetic interference (EMI), making it suitable for noise-sensitive applications.

Product Attributes

Function:Step-Up, Step-Up/Step-Down
Output Configuration:Positive and Negative (Dual Rail)
Topology:Boost, SEPIC
Output Type:Adjustable
Number of Outputs:2
Voltage - Input (Min):2.85V
Voltage - Input (Max):15V
Voltage - Output (Min/Fixed):0.8V, 1.6V
Voltage - Output (Max):±39V
Current - Output:600mA, 1A
Frequency - Switching:1.2MHz, 2.4MHz
Synchronous Rectifier:No
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:20-TSSOP-EP
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Similar Products

Part Number ADP5070AREZ ADP5071AREZ
Manufacturer Analog Devices Inc. Analog Devices Inc.
Product Status Active Active
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down
Output Configuration Positive and Negative (Dual Rail) Positive and Negative (Dual Rail)
Topology Boost, SEPIC Boost, SEPIC
Output Type Adjustable Adjustable
Number of Outputs 2 2
Voltage - Input (Min) 2.85V 2.85V
Voltage - Input (Max) 15V 15V
Voltage - Output (Min/Fixed) 0.8V, 1.6V 0.8V, 1.6V
Voltage - Output (Max) ±39V ±39V
Current - Output 600mA, 1A 1.2A, 2A
Frequency - Switching 1.2MHz, 2.4MHz 1.2MHz, 2.4MHz
Synchronous Rectifier No No
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount
Package / Case 20-TSSOP (0.173", 4.40mm Width) Exposed Pad 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package 20-TSSOP-EP 20-TSSOP-EP

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