Analog Devices Inc. ADP5300-EVALZ

Overview

ADP5300-EVALZ from Analog Devices is a fully assembled and tested evaluation board designed to characterize the ADP5300 50 mA/500 mA ultralow power synchronous step-down regulator in its 10-lead LFCSP package. It supports input voltage range of 2.15 V to 6.50 V, offers FPWM/hysteresis mode selection via J6, and provides user-adjustable output voltage (default 1.8 V) through VID resistor or jumper configuration.

For engineers reviewing the ADP5300-EVALZ datasheet, ADP5300-EVALZ pinout, ADP5300-EVALZ application, or ADP5300-EVALZ equivalent, this board enables rapid performance validation-including efficiency, load/line regulation, switching waveform, output ripple, and inductor current-using standard lab equipment and configurable jumpers (J5–J8) and test points (TP1–TP9).

Technical Context

The ADP5300-EVALZ implements the full functional interface of the ADP5300 IC, including EN control (J5), VID-programmable output (J8), SYNC/MODE selection (J6), and VOUT_OK monitoring (J7). It integrates all required passive components: dual 10 µF/10 V output capacitors (C2, C3), 2.2 µH power inductor (L1), feedback resistor network (R1 = 19.6 kΩ), and enable pull-up (R2 = 1 MΩ).

Test points TP1–TP9 provide direct access to VIN_SNS, SW, STOP, VOUT_SNS, GND_SNS, VOUT_OK, and ground reference nodes. The board uses Harwin SIP headers (J1–J4, J5–J8) and matches the QFN10_3x3 footprint of the ADP5300ACPZ-1-R7 IC (U1), enabling accurate measurement of real-world regulator behavior under varying load, line, and mode conditions.

Key Specifications

Availability

ADP5300-EVALZ is available at Aetrix Electronics and suitable for power management validation, battery-powered IoT sensor node development, wearable device DC-DC characterization, and ultralow-power microcontroller supply design requiring stable component supply and repeatable lab evaluation.

Supply support for ADP5300-EVALZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADP5300-EVALZ belongs to Analog Devices' ultralow-power DC-DC evaluation platform family, engineered specifically to accelerate design-in of sub-μA quiescent current regulators for energy-harvesting and long-life battery applications.

FAQ

What is the primary function of the ADP5300-EVALZ?

The ADP5300-EVALZ is an evaluation board purpose-built to assess the performance of the ADP5300 synchronous step-down regulator. It enables engineers to measure key parameters-including efficiency, load/line regulation, output ripple, switching waveform, and VOUT_OK response-without custom PCB design. All critical signals are accessible via labeled test points and configurable jumpers, making ADP5300-EVALZ ideal for rapid prototyping and validation of ultralow-power power supplies.

How do I configure the output voltage on the ADP5300-EVALZ?

The ADP5300-EVALZ defaults to 1.8 V output. To adjust it, use jumper J8: connect to VIN for 2.5 V, to GND for 3.0 V, or leave floating to program VOUT with an external VID resistor per the ADP5300 datasheet. The board includes R1 (19.6 kΩ) as part of the feedback network, and no soldering is required for basic voltage changes-only jumper repositioning. This flexibility allows ADP5300-EVALZ users to verify multiple output settings without hardware modification.

Which operating modes does the ADP5300-EVALZ support, and how are they selected?

The ADP5300-EVALZ supports both FPWM and hysteresis modes via jumper J6. Connect J6 to VIN for forced PWM operation (constant frequency, low noise); connect to GND for hysteresis mode (variable frequency, ultralow IQ at light loads). An external clock can also be applied to the SYNC/MODE pin for frequency setting between 1.2 MHz and 2.5 MHz. These selections directly reflect the ADP5300's internal control architecture and are fully exposed on ADP5300-EVALZ for real-time mode comparison.

What test points are provided on the ADP5300-EVALZ, and what do they monitor?

The ADP5300-EVALZ includes nine dedicated test points: TP1/TP5 for VIN sensing, TP4/TP7 for VOUT sensing, TP2 for the switch node (SW), TP3 for STOP, TP6 for VOUT_OK, and TP8/TP9 for system ground. These points allow precise, low-noise probing with oscilloscopes and multimeters-critical for measuring ripple, transient response, and switching behavior. Their placement minimizes lead inductance, ensuring ADP5300-EVALZ delivers measurement-grade accuracy during characterization.

Is the ADP5300-EVALZ RoHS-compliant and ESD-safe?

Yes, the ADP5300-EVALZ complies with RoHS Directive 2011/65/EU and is marked ESD-sensitive per ANSI/ESD S20.20. The board incorporates ESD protection circuitry aligned with the ADP5300 IC's design, and Analog Devices recommends handling with grounded wrist straps and antistatic mats. All bill-of-materials components-including Murata capacitors, Coilcraft/Würth inductors, and Vishay resistors-are RoHS-compliant, confirming ADP5300-EVALZ meets environmental and safety requirements for lab and pre-production use.