ADP5076 Series

2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs

Catalog

2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs

Part	Supplied Contents	Regulator Topology	Voltage - Output	Outputs and Type	Outputs and Type	Board Type	Main Purpose	Frequency - Switching	Utilized IC / Part	Current - Output	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Input (Max) [Max]	Number of Outputs	Function	Voltage - Output (Min/Fixed)	Topology	Output Configuration	Voltage - Input (Min) [Min]	Voltage - Output (Max) [Max]	Voltage - Output (Max) [Min]	Supplier Device Package	Output Type	Package / Case	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Synchronous Rectifier
Analog Devices ADP5076CB-EVALZ	Board(s)	Boost	30 VDC 35 V	2	Non-Isolated	Fully Populated	DC/DC Step Up	1.8 MHz	ADP5076	2 A	5.5 V	2.85 V
Analog Devices ADP5076ACBZ-R7								1.2 MHz 2.4 MHz		1.2 A 2 A			5.5 V	2	Step-Up	0.8 V	Boost	Positive and Negative	2.85 V	35 V	-30 V	20-WLCSP (1.61x2.18)	Adjustable	20-UFBGA WLCSP	Surface Mount	-40 °C	125 ¯C

Catalog

2 A/1.2 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 VPOSoutput

• Adjustable positive output to 35 V

• Integrated 2.0 A main switch

• Inverting regulator to generate VNEGoutput

• Adjustable negative output to −30 V

• Integrated 1.20 A main switch

• 1.2 MHz or 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 ADP5076 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 ADP5076 operates at a pin selected 1.2 MHz or 2.4 MHz switching frequency. The ADP5076 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 metal-oxide semiconductor field effect transistor (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 ADP5076 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up.Other key safety features in the ADP5076 include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).The ADP5076 is available in a 20-ball wafer level chip scale package (WLCSP) and is rated for a −40°C to +125°C junction temperature range.ApplicationsBipolar amplifiers, ADCs, DACs, and multiplexersCharge coupled device (CCD) bias supplyOptical module supplyRF power amplifier biasTime of flight module supply