ADP5072

RECOMMENDED FOR NEW DESIGNS

1 A/0.6 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs

Data Sheet (Rev. A) Product Selection Table

Part Models: 1
1ku List Price: Starting From $2.81

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Overview

Input supply voltage range: 2.85 V to 5.5 V
Generates well regulated, independently resistor programmable V_POS and V_NEG outputs
Boost regulator to generate V_POS output
- Adjustable positive output to 35 V
- Integrated 1.0 A main switch
Inverting regulator to generate V_NEG output
- Adjustable negative output to −30 V
- Integrated 0.6 A main switch
1.2 MHz/2.4 MHz switching frequency with optional external frequency synchronization from 1.0 MHz to 2.6 MHz

Resistor programmable soft start timer
Slew rate control for lower system noise
Individual precision enable and flexible start-up sequence control for symmetric start, V_POS first, or V_NEG first
Out of phase operation
UVLO, OCP, OVP, and TSD protection
1.61 mm × 2.18 mm, 20-ball WLCSP
−40°C to +125°C junction temperature range

The ADP5072 is a dual, high performance dc-to-dc regulator that generates independently regulated positive and negative rails.

The input voltage range of 2.85 V to 5.5 V supports a wide variety of applications. The integrated main switch in both regulators enables generation of an adjustable positive output voltage up to 35 V and a negative output voltage down to −30 V.

The ADP5072 operates at a pin selected 1.2 MHz or 2.4 MHz switching frequency. The ADP5072 can synchronize with an external oscillator from 1.0 MHz to 2.6 MHz to ease noise filtering in sensitive applications. Both regulators implement programmable slew rate control circuitry for the MOSFET driver stage to reduce electromagnetic interference (EMI). Flexible start-up sequencing is provided with the options of manual enable, simultaneous mode, positive supply first, and negative supply first.

The ADP5072 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up.

Other key safety features in the ADP5072 include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).

The ADP5072 is available in a 20-ball WLCSP and is rated for a −40°C to +125°C junction temperature range.

Bipolar amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and multiplexers
Charge coupled device (CCD) bias supplies
Optical module supplies
RF power amplifier bias
Time of flight module supplies

Part Models: 1
1ku List Price: Starting From $2.81

Documentation

Data Sheet 1

ADP5072: 1 A/0.6 A DC to DC Switching Regulator with Independent Positive and Negative Outputs Data Sheet (Rev.A) 11/30/2020

User Guide 1

UG-1375: EVAL-ADP5072 User Guide 12/24/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADP5072ACBZ-R7	20-Ball WLCSP (1.61 mm x 2.18 mm x 0.50 mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

ADP5072

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

ADP5072 Evaluation Board

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Features and Benefits

Input supply voltage range: 3 V to 5.5 V
Output voltage: ±15 V
Output current: up to 190 mA (V_POS), up to 90 mA (V_NEG), depending on V_IN

Product Details

The ADP5072CB-EVALZ evaluation board demonstrates the functionality of the ADP5072 dc to dc converter. The ADP5072 is a dual high performance dc to dc regulator that generates independently regulated positive and negative rails.

Use the board to evaluate simple device measurements, such as line regulation, load regulation, and efficiency. Device features can be demonstrated, such as selectable operating frequency, soft start, sequencing, and slew rate control.

For more details about the ADP5072, refer to the ADP5072 data sheet, which must be consulted in conjunction with this user guide when using the evaluation board.