Analog Devices Inc. ADP2504CPZ-REDYKIT

Overview

ADP2504CPZ-REDYKIT from Analog Devices is an evaluation board designed to validate the ADP2504 1 A buck-boost DC/DC converter IC in real-world power supply designs. It supports input voltages from 2.3 V to 5.5 V, delivers a fixed 3.3 V output (±3% regulation), operates at 2.5 MHz switching frequency, and sustains up to 1 A continuous load current - ideal for portable battery-powered systems requiring efficient voltage regulation across varying cell states.

For engineers reviewing the ADP2504CPZ-REDYKIT datasheet, ADP2504CPZ-REDYKIT pinout, ADP2504CPZ-REDYKIT application, or ADP2504CPZ-REDYKIT equivalent, this board enables rapid characterization of efficiency, load/line regulation, ripple, and mode transition (PWM vs. pulse skip) under controlled bench conditions with minimal setup.

Technical Context

The ADP2504CPZ-REDYKIT implements the ADP2504 IC in a fully assembled, tested configuration featuring synchronous rectification, current-mode PWM control, and automatic pulse skip mode (PSM) activation below ~75 mA load. It uses a 1.5 μH inductor (Murata LQM2HPN1R5MG0L) and three 10 μF X5R ceramic output capacitors for low-ripple, high-transient-response operation.

Jumper-configurable EN and SYNC pins allow hardware-level control of device enablement and operating mode selection (forced PWM or PSM). Test points TP1 (VIN) and TP2 (VOUT) provide direct access for oscilloscope and multimeter measurements without soldering or probing sensitive nodes.

Key Specifications

Availability

ADP2504CPZ-REDYKIT is available at Aetrix Electronics and suitable for portable medical monitors, handheld test equipment, IoT sensor nodes, and wearable electronics requiring stable component supply during early-stage power architecture validation.

Supply support for ADP2504CPZ-REDYKIT 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 ADP2504CPZ-REDYKIT belongs to Analog Devices' power management evaluation platform family, engineered specifically to accelerate design-in of ultra-low-quiescent-current buck-boost converters for battery-constrained applications.

FAQ

What is the primary function of the ADP2504CPZ-REDYKIT?

The ADP2504CPZ-REDYKIT is a fully assembled evaluation board that demonstrates and validates the performance of the ADP2504 1 A buck-boost DC/DC converter IC. It provides immediate access to key metrics including efficiency, output ripple, load/line regulation, and mode-switching behavior - all without requiring custom PCB design or component sourcing. The ADP2504CPZ-REDYKIT is intended solely for engineering evaluation, not for end-product integration.

Does the ADP2504CPZ-REDYKIT support adjustable output voltages?

No - the ADP2504CPZ-REDYKIT is configured for a fixed 3.3 V output using internal feedback resistors (R2/R3). While other ADP2504 evaluation variants exist for 2.8 V, 3.5 V, 4.2 V, 4.5 V, and 5.0 V outputs, this specific kit (ADP2504CPZ-REDYKIT) is factory-set to 3.3 V and does not include external feedback resistor pads for adjustment. The ADP2504CPZ-REDYKIT schematic confirms R3 is populated as 0 Ω, fixing the FB node to the internal reference.

How do I enable or disable the ADP2504CPZ-REDYKIT?

Use jumper J6: connect Pins 1–2 to enable the ADP2504CPZ-REDYKIT (EN pulled high), or Pins 2–3 to disable it (EN grounded), reducing quiescent current to <1 μA. This hardware-level control allows precise power sequencing during testing. The ADP2504CPZ-REDYKIT documentation specifies that disabling via J6 places the ADP2504 IC into true shutdown mode, not standby - confirming full gate drive and bias current cutoff.

Can the ADP2504CPZ-REDYKIT operate in both buck and boost modes?

Yes - the ADP2504CPZ-REDYKIT inherently supports both buck (VIN > VOUT) and boost (VIN < VOUT) operation within its 2.3 V–5.5 V input range and fixed 3.3 V output. Figures 5 (boost, VIN = 3.0 V) and 6 (buck, VIN = 4.0 V) in the official Rev. 0 datasheet confirm seamless mode transition without external reconfiguration. The ADP2504CPZ-REDYKIT's topology uses dual switches (SW1/SW2) and a single inductor to achieve this, validated across all tested input conditions.

What test points are available on the ADP2504CPZ-REDYKIT for measurement?

The ADP2504CPZ-REDYKIT provides dedicated test points TP1 (VIN) and TP2 (VOUT) for non-invasive voltage monitoring, plus accessible SW1/SW2 nodes for switching waveform observation. Ground connections are routed to PGND and AGND planes with paddle grounding per the ADP2504 IC's thermal requirements. These test points align with the schematic (Figure 8) and layout (Figures 9–10), ensuring measurement integrity by minimizing lead inductance and ground loop errors.