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ADP5073

Analog Devices
Part Number ADP5073
Manufacturer Analog Devices
Description DC-to-DC Inverting Regulator
Published Mar 6, 2017
Detailed Description Data Sheet 1.2 A, DC-to-DC Inverting Regulator ADP5073 FEATURES Wide input voltage range: 2.85 V to 15 V Adjustable ne...
Datasheet PDF File ADP5073 PDF File

ADP5073
ADP5073

Overview
Data Sheet 1.
2 A, DC-to-DC Inverting Regulator ADP5073 FEATURES Wide input voltage range: 2.
85 V to 15 V Adjustable negative output to VIN − 39 V Integrated 1.
2 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 Precision enable control Power-good output UVLO, OCP, OVP, and TSD protection 3 mm × 3 mm, 16-lead LFCSP −40°C to +125°C junction temperature Supported by the ADIsimPower tool set APPLICATIONS Bipolar amplifiers, ADCs, digital-to-analog converters (DACs), and multiplexers High speed converters Radio frequency (RF) power amplifier (PA) bias Optical modules TYPICAL APPLICATION CIRCUIT VIN CIN ON OFF CVREG AVIN PVIN VREF ADP5073 FB EN SW VREG RPG SS PWRGD CC PWRGD SLEW COMP SYNC/FREQ RC GND CVREF RFB RFT D1 L1 VOUT COUT 12817-001 Figure 1.
GENERAL DESCRIPTION The ADP5073 is a high performance dc-to-dc inverting regulator used to generate negative supply rails.
The input voltage range of 2.
85 V to 15 V supports a wide variety of applications.
The integrated main switch enables the generation of an adjustable negative output voltage down to 39 V below the input voltage.
The ADP5073 operates at a pin selected 1.
2 MHz/2.
4 MHz switching frequency.
The ADP5073 can synchronize with an external oscillator from 1.
0 MHz to 2.
6 MHz to ease noise filtering in sensitive applications.
The regulator implements programmable slew rate control circuitry for the MOSFET driver stage to reduce electromagnetic interference (EMI).
The ADP5073 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up.
During shutdown, the regulator completely disconnects the load from the input supply to provide a true shutdown.
A power-good pin is available to indicate the output is stable.
Other key safety features in the ADP5073 include overcurrent protection (OCP), overvoltage p...


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