PCA9422-EVB - PCA9422 PMIC Evaluation Board | NXP
MPN: PCA9422-EVB ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
PCA9422-EVB Overview
An evaluation board is a pre-assembled circuit platform that lets engineers exercise every function of an integrated circuit before committing to a custom PCB design. Within the product hierarchy, evaluation boards sit in the development tools category, above bare ICs (here, the PCA9422 PMIC -> power management IC -> semiconductor), and typically include all supporting circuitry: regulators, connectors, configuration jumpers, and software hooks. The PCA9422-EVB exemplifies this category by exposing the full PCA9422 feature set through standard interfaces and a graphical user interface.
Key features include the Arduino UNO compatible expansion interface, an onboard analog-to-digital converter that streams all regulator voltages to a PC GUI, and pre-populated external components matching the recommended PCA9422 application circuit. The board allows rapid configuration of the PMIC regulators and modes without soldering.
The underlying PCA9422 is a highly-integrated PMIC targeted at full power management solutions for low-power microcontroller applications or applications with small batteries, as described by NXP documentation. It provides multiple regulators in a single device, reducing board area and BOM count in battery-powered designs.
Typical use cases include early-stage evaluation of the PCA9422 for low-power MCU power supplies, validation of regulator sequencing and modes, prototyping of small-battery power architectures for i.MX RT-class or general microcontroller systems, and training or demonstration platforms.
A key design consideration is that the EVB reflects the NXP reference layout; results obtained on this board, including regulator thermal behavior and EMI, may differ from a custom layout, so final validation on production hardware is still required.
This page synthesizes distributor availability, board-level design notes, and practical evaluation guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for PCA9422-EVB — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesPCA9422-EVB Specifications (manufacturer-published)
| Product Type | Evaluation Board |
| Target Device | PCA9422 Power Management IC (PMIC) |
| Supported Interface | Arduino UNO interface |
| Onboard Measurement | Onboard ADC monitoring of all regulator voltages via GUI |
| Intended Use | Evaluation, design, implementation, and validation of multi-channel PMIC designs |
| Software Support | GUI voltage monitoring; MCUXpresso Expansion Board Hub support |
| Manufacturer | NXP Semiconductors |
| Package | Evaluation board (not applicable) |
| Mounting Type | Standalone development board |
PCA9422-EVB Interfaces & Connectors
No manufacturer-published interface list is available for PCA9422-EVB. Refer to the manufacturer documentation for connector and header details.
Refer to the manufacturer documentation for the full expansion header pinout and connector pin numbering.
Typical Applications
PCA9422-EVB is suitable for 6 applications: Low-Power Microcontroller Power Supply Evaluation, Small Battery Powered Device Prototyping, NXP MCU Ecosystem Expansion Board Integration, PMIC Validation and Design Verification, Multi-Rail Power Architecture Prototyping, Training, Demonstration, and Proof-of-Concept.
Low-Power Microcontroller Power Supply Evaluation
The PCA9422-EVB fits low-power microcontroller power evaluation because the underlying PCA9422 PMIC is explicitly targeted by NXP at full power management solutions for low-power MCU applications. On the EVB, engineers can power up the board, connect it through the Arduino UNO interface to an MCU carrier, and use the onboard ADC plus GUI to monitor every regulator voltage in real time. This allows immediate verification of output accuracy, sequencing, and mode transitions without building custom hardware. The performance consideration is that EVB results reflect the NXP reference layout; a production PCB may show different load-transient and thermal behavior, so final rail measurements should be repeated on the target board. Used early in a project, the EVB de-risks the entire power tree before layout commitment.
Recommended
Small Battery Powered Device Prototyping
The PCA9422 PMIC targets applications with small batteries, and the PCA9422-EVB is the fastest way to prototype such a power architecture. The EVB exposes the full PMIC function set, so designers can validate battery-connected regulator configurations, observe rail behavior through the GUI-fed onboard ADC, and iterate configuration settings in minutes instead of respinning a PCB. Because the board supports the Arduino UNO interface, it mates directly with MCU development carriers common in portable-device prototyping. The trade-off to keep in mind is that EVB quiescent and leakage figures include board-level overhead from monitoring circuitry, so ultra-low sleep-current budgets should be characterized on the PCA9422 IC itself before finalizing battery-life calculations for the end product.
Recommended
NXP MCU Ecosystem Expansion Board Integration
Because the PCA9422-EVB supports the Arduino UNO interface and is listed on the NXP MCUXpresso Expansion Board Hub, it integrates naturally into the NXP microcontroller ecosystem. Engineers working with NXP MCU development kits can stack or connect the EVB as a power-management expansion, exercising PMIC functions alongside real firmware development. The onboard analog-to-digital converter streams all regulator voltages to a GUI, giving firmware teams visibility into the power domain behavior while debugging software. The practical consideration is connector orientation and mechanical stacking: verify the UNO-pinout alignment with the chosen carrier before final test-fixture design. This application suits teams standardizing on NXP MCUs who want their power tree evaluated in the same environment as their firmware.
Recommended
PMIC Validation and Design Verification
The official PCA9422-EVB user manual states the board is intended for engineers involved in the evaluation, design, implementation, and validation of the multi-channel PCA9422 PMIC, making it the reference platform for design verification. Validation engineers can exercise every PMIC function, compare regulator outputs against datasheet limits using the onboard ADC and GUI monitoring, and document results for design reviews. Multi-channel PMIC validation on the EVB covers enable sequencing, regulator mode configuration, and output accuracy across the operating envelope. The performance consideration is measurement accuracy: the onboard ADC provides convenient continuous monitoring, but compliance-grade measurements of ripple, transient response, and accuracy extremes should be confirmed with calibrated bench instruments connected to the board's test points.
Recommended
Multi-Rail Power Architecture Prototyping
Multi-channel PMICs like the PCA9422 replace several discrete regulators with one integrated device, and the PCA9422-EVB lets teams prototype such multi-rail architectures before committing to silicon-level design decisions. Using the EVB, system architects can confirm that each generated rail meets the voltage and sequencing requirements of downstream loads such as MCUs, sensors, and radios, with the GUI-based onboard ADC giving simultaneous visibility of all rails rather than single-channel probing. This simultaneous view is particularly valuable for catching sequencing faults and brownout behavior during power-up and power-down. The trade-off is flexibility versus fidelity: the EVB fixed configuration may not cover every custom-rail scenario, so architecture edge cases may still require a quick-turn custom board based on the validated schematic.
Recommended
Training, Demonstration, and Proof-of-Concept
The PCA9422-EVB's easy-to-use design and GUI-driven voltage monitoring make it well suited for training new engineers on PMIC concepts and for customer demonstrations of NXP power solutions. A presenter can show real-time regulator behavior on screen via the ADC-fed GUI while explaining sequencing, rail configuration, and integration advantages of the PCA9422 in low-power and small-battery systems. For proof-of-concept work, the Arduino UNO interface allows quick pairing with familiar MCU boards, shortening the path from concept to a working demonstration. The consideration for demos is preparation: load the correct GUI and firmware from the official NXP PCA9422-EVB page beforehand, since software availability and board revisions can differ from what third-party mirrors host.
Recommended
Engineering reference data for PCA9422-EVB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | NXP Semiconductors |
| Package | Evaluation board (development tool, no IC package) |
| Target Device | PCA9422 PMIC |
| Interface | Arduino UNO interface |
| Voltage Monitoring | Onboard ADC via GUI |
| Lifecycle Status | Active |
| Distributor Availability | DigiKey, Mouser (2 distributors via Octopart) |
| Drop-in Alternative | None found in cross-reference data |
Key Differentiators
- Official NXP platform with full function access (vs None (no drop-in alternatives exist))
- Integrated ADC-based monitoring (vs Manual bench probing of the PCA9422 IC on custom fixture)
- Ecosystem compatibility (vs Generic third-party PMIC evaluation boards)
Design Notes
Read the official PCA9422-EVB user manual before first power-up. The manual, hosted via DigiKey and intended for engineers evaluating the multi-channel PCA9422 PMIC, documents required jumper configurations, supply connections, and measurement procedures. PMIC evaluation boards frequently ship with configuration jumpers in default positions that differ from the configuration your application requires; powering the board with the wrong shunt placement can produce misleading regulator readings or prevent startup entirely.
Treat the onboard ADC monitoring as a first-pass measurement tool, not a calibration instrument. The PCA9422-EVB streams all regulator voltages to a GUI for convenience, but verifying datasheet-level output accuracy, ripple, and load-transient response requires calibrated bench instruments connected at the board's test points with short, low-inductance ground leads. This two-tier measurement approach - ADC for trends, bench gear for compliance - is standard practice when validating PMIC evaluation platforms.
When translating EVB results to your production design, replicate the NXP reference layout practices visible on the PCA9422-EVB: short, wide input traces, input/output capacitors placed close to the PMIC pins, and solid ground planes under the switching and analog sections. Evaluation-board performance is layout-dependent; a custom PCB with long thin power traces will show worse load regulation and noise than the reference board, so re-validate sequencing and rail accuracy on your own layout before release.
Compliance Information
Compliance data for the PCA9422-EVB evaluation board was not present in the verified web data. Consult the official NXP product page for RoHS/REACH declarations.
