The ADP5037 is a product that combines two 800 mA buck regulators and two 300 mA LDO regulators. It has a main input voltage range of 2.3 V to 5.5 V and achieves a regulator accuracy of ±3%. The output voltage ranges from 0.8 V to 3.8 V (BUCK1/BUCK2) and 0.8 V to 4.75 V (LDO1/LDO2). The ADP5037 is suitable for powering processors, ASICs, FPGAs, and RF chipsets, as well as portable instrumentation and medical devices in space-constrained applications.
The ADP5037 combines two high‑performance buck regulators and two low‑dropout (LDO) regulators in a compact 24‑lead 4 mm × 4 mm LFCSP package. It offers a wide input range, high switching frequency, and low quiescent current, making it suitable for space‑constrained portable devices, processors, ASICs, FPGAs, and RF chipsets.
The document provides full electrical specifications, pin configuration, typical application circuits, thermal considerations, and recommended external components. It also includes ordering information, layout guidelines, and performance graphs to aid designers in integrating the device into their designs.
| Input voltage range | 2.3 V to 5.5 V |
|---|---|
| Buck regulator output range | 0.8 V to 3.8 V |
| LDO output range | 0.8 V to 4.75 V |
| Buck switching frequency | 3 MHz |
The device operates from 2.3 V up to 5.5 V input.
It contains two 800 mA buck regulators and two 300 mA LDOs.
The buck regulators operate at a 3 MHz switching frequency.
The buck outputs can be set between 0.8 V and 3.8 V.