Analog Devices ADP5003 Low-Noise μPMU Buck Regulator | New Product BriefAugust 17, 2018 by Mouser Electronics
Analog Devices' ADP5003 Low-Noise µPMU combines a high voltage buck regulator and ultra-low-noise LDO to improve efficiency and thermal performance while reducing noise in high-speed data converters and RF transceivers.
This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.
Analog Devices ADP5003 Low-Noise μPMU Buck Regulator
Analog Devices' ADP5003 Low-Noise µPMU combines a high voltage buck regulator and ultra-low-noise LDO to improve efficiency and thermal performance while reducing noise in high-speed data converters and RF transceivers. Both regulators are capable of output current up to 3 A from wide input voltages, and they can be operated independently or in adaptive mode, which adjusts the output of the buck regulator to provide the LDO with a set headroom. This removes switching ripple while ensuring optimal efficiency and high PSRR for any output current. The high-efficiency buck regulator can switch from 300 kHz to 2.5 MHz using an internal oscillator or external signal and can output from 0.6 V to 5 V. The LDO outputs from 0.6 V to 3.3 V with 3 µVRMS output noise, ±1.5% accuracy, and remote sensing.
- Input Voltage: 4.2 V to 15 V (buck), 0.65 V to 5 V (LDO)
- Adaptive mode: controls LDO headroom for optimal efficiency and PSRR
- Buck fSW: 0.3 MHz to 2.5 MHz (internal oscillator or external sync)
- Buck VOUT: 0.6 V to 5.0 V
- LDO VOUT: 0.6 V to 3.3 V
- LDO VOUT noise: 3 µVRMS
New Industry Products are a form of content that allows industry partners to share useful news, messages, and technology with All About Circuits readers in a way editorial content is not well suited to. All New Industry Products are subject to strict editorial guidelines with the intention of offering readers useful news, technical expertise, or stories. The viewpoints and opinions expressed in New Industry Products are those of the partner and not necessarily those of All About Circuits or its writers.