ADP5072 Series

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

Catalog

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

Part	Function	Package / Case	Output Configuration	Synchronous Rectifier	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Mounting Type	Output Type	Voltage - Output (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Number of Outputs	Supplier Device Package	Topology	Current - Output	Frequency - Switching	Outputs and Type	Outputs and Type	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Utilized IC / Part	Supplied Contents	Board Type
Analog Devices ADP5072ACBZ-R7	Step-Up	20-UFBGA WLCSP	Positive and Negative (Dual Rail)		5.5 V	0.8 V	Surface Mount	Adjustable	35 V	-40 °C	125 ¯C	2.85 V	2	20-WLCSP (1.61x2.18)	Boost	1 A 600 mA	1.2 MHz 2.4 MHz
Analog Devices ADP5072CB-EVALZ																90 mA 190 mA		2	Non-Isolated	DC/DC Positive and Negative	5.5 V	3 V	15 V	ADP5072	Board(s)	Fully Populated

Catalog

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

Key Features

• Input supply voltage range: 2.85 V to 5.5 V

• Generates well regulated, independently resistor programmable VPOSand VNEGoutputs

• Boost regulator to generate VPOSoutputAdjustable positive output to 35 VIntegrated 1.0 A main switch

• Adjustable positive output to 35 V

• Integrated 1.0 A main switch

• Inverting regulator to generate VNEGoutputAdjustable negative output to −30 VIntegrated 0.6 A main switch

• 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, VPOSfirst, or VNEGfirst

• 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

Description

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 multiplexersCharge coupled device (CCD) bias suppliesOptical module suppliesRF power amplifier biasTime of flight module supplies