ADP5074

Data Sheet 2.4 A, DC-to-DC Inverting Regulator ADP5074 FEATURES Wide input voltage range: 2.85 V to 15 V Adjustable negative output to VIN − 39 V Integrated 2.4 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 GENERAL DESCRIPTION The ADP5074 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 ADP5074 operates at a pin selected 1.2 MHz/2.4 MHz switching frequency. The ADP5074 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 ADP5074 includes a fixed internal or resistor programmable soft start timer to prevent inr...