Monolithic Power Systems Inc. EV20056-J-00A

Overview

EV20056-J-00A from Monolithic Power Systems is an evaluation board for the MP20056-J-33 ultra-low-noise, fast-transient-response linear regulator. It demonstrates a fixed 3.3V output, 250mA load capability, 100mV dropout at full load, 70dB PSRR at 1kHz, and 13μVRMS output noise-targeted for powering noise-sensitive analog and digital cores in portable electronics.

For engineers reviewing the EV20056-J-00A datasheet, EV20056-J-00A pinout, EV20056-J-00A application, or EV20056-J-00A equivalent, this board enables rapid validation of MP20056-J-33 performance under real-world transient load steps, low-PSRR supply conditions, and battery-powered startup sequencing with enable control.

Technical Context

The EV20056-J-00A implements the MP20056-J-33 in a QFN-8 (2mm × 2mm) package with integrated PMOS pass element, enabling 150μA quiescent current and fast load-step response without external compensation. Input voltage range is strictly 3.7V–5.5V, and output is factory-fixed at 3.3V with no external feedback network.

Board-level design includes dual ceramic input/output capacitors (2.2μF and 4.7μF, X5R, 0603), test points for VIN/VOUT/GND/EN, and thermal relief optimized for handheld instrument and cellular phone power rail characterization under dynamic loading.

Key Specifications

Availability

EV20056-J-00A is available at Aetrix Electronics and suitable for cellular phone power validation, FPGA core rail testing, and handheld instrument battery-life benchmarking requiring stable component supply and repeatable lab measurement conditions.

Supply support for EV20056-J-00A 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MP20056 product line delivers ultra-low-noise, fast-transient LDOs for powering sensitive analog circuitry in battery-operated wireless and computing devices where PSRR and output stability under dynamic loads are critical.

FAQ

What is the purpose of the EN test point on the EV20056-J-00A?

The EN test point provides direct access to the enable input of the MP20056-J-33. Applying ≥1.5V activates the regulator; ≤0.4V disables it. This allows precise control of power-up timing and sequencing in multi-rail systems without modifying the board layout or adding external logic.

Can the EV20056-J-00A be used to evaluate other MP20056 variants?

No-the board is configured specifically for the MP20056-J-33 with fixed 3.3V output. Other variants (e.g., adjustable versions or different output voltages) require different feedback networks or internal configurations not supported by this board's passive component layout and routing.

What capacitor values are populated on the EV20056-J-00A and why?

C1 = 2.2μF (input) and C2 = 4.7μF (output), both 0603 X5R ceramics rated for 6.3V. These values meet MP20056-J-33 stability requirements per datasheet, minimize ESR-induced ringing during load transients, and fit the board's ultra-small footprint constraints.

Does the EV20056-J-00A include thermal protection monitoring?

Yes-the MP20056-J-33 IC on the board integrates over-temperature shutdown. When junction temperature exceeds ~150°C, the regulator disables output and auto-restarts once cooled below ~135°C. No external thermal sensor or indicator is included on the board itself.

Is there a recommended input source for transient testing?

A programmable DC power supply with fast slew rate (>1V/ms) and low output impedance is recommended. For load-step testing, use an electronic load capable of ≥100mA/μs slew rate between 50mA and 250mA to fully exercise the board's fast transient response as documented in the Rev. 1.0 test report.