Analog Devices Inc. ADP5076 DC-to-DC Switching Regulator

Analog Devices ADP5076 DC-to-DC Switching Regulator generates independently regulated positive and negative rails. The input voltage range of 2.85V to 5.5V supports various applications. The device is ideal for bipolar amplifiers, analog-to-digital (ADC) converters, digital-to-analog (DAC) converters, multiplexers, and radio-frequency power amplifier bias. The integrated main switch in both regulators enables generation of an adjustable positive output voltage up to +35V and a negative output voltage as low as −30V. ADP5076 operates at a pin selected 1.2MHz or 2.4MHz switching frequency. The device also can synchronize with an external oscillator from 1.0MHz to 2.6MHz to ease noise filtering in sensitive applications.

Features

2.85V to 5.5V input supply voltage range
Generates well-regulated, independently resistor-programmable V_POS and V_NEG outputs
Boost regulator to generate V_POS output
- Adjustable positive output to 35V
- Integrated 2.0A main switch
Inverting regulator to generate V_NEG output
- Adjustable negative output to −30V
- Integrated 1.20A main switch
3.5mA quiescent current

1.2MHz or 2.4MHz switching frequency with optional external frequency synchronization from 1.0MHz to 2.6MHz
Resistor programmable soft start timer
Slew rate control for lower system noise
−40°C to +125°C junction temperature range
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
1.61mm × 2.18mm, 20-ball WLCSP