Monolithic Power Systems Inc. EVQ2029-N-00A

Overview

EVQ2029-N-00A from Monolithic Power Systems is a fully assembled and tested evaluation board for the MPQ2029 low-quiescent-current linear regulator IC, designed to validate 5V/450mA power delivery from 6–40V input sources in high-voltage battery systems. It supports industrial, automotive, and ultra-low-power microcontroller applications with ±2% output accuracy, 420mV dropout at 300mA, and 10µA quiescent current.

For engineers reviewing the EVQ2029-N-00A datasheet, EVQ2029-N-00A pinout, EVQ2029-N-00A application, or EVQ2029-N-00A equivalent, this board enables rapid validation of MPQ2029 performance under real-world load transients, thermal shutdown behavior, dropout margin, and low-I_Q operation across its full 6–40V input range.

Technical Context

The EVQ2029-N-00A implements the MPQ2029 SOIC8-EP linear regulator in a fixed 5V output configuration with external feedback resistors omitted. Input filtering uses a 2.2µF X7R ceramic capacitor (C1), while output stability relies on a 22µF X7R ceramic (C5) and three 47nF bypass caps (C2/C3/C6).

Board-level test points (VIN, GND, VOUT, EN, PG) support in-circuit monitoring of enable logic, power-good signaling, ground current vs. load, and dropout voltage sweep. Thermal performance is validated up to +125°C junction temperature per MPQ2029 specifications.

Key Specifications

Availability

EVQ2029-N-00A is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and portable medical devices requiring stable component supply, fast design validation cycles, and traceable sourcing of Monolithic Power Systems evaluation hardware.

Supply support for EVQ2029-N-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 MPQ2029 product line targets high-input-voltage linear regulation in space-constrained, low-power systems where dropout, quiescent current, and thermal robustness are critical-especially in battery-powered industrial and automotive subsystems.

FAQ

What input voltage range is supported during functional testing?

The EVQ2029-N-00A is validated for continuous operation from 6V to 40V input. Test data confirms stable 5V output down to 5.42V input (420mV dropout at 300mA), with no startup failure observed across the full range under room-temperature conditions.

Does the board include power-good (PG) and enable (EN) functionality?

Yes. The board exposes PG and EN pins via 2.54mm test points. PG asserts high when VOUT is within ±2% of 5V; EN is pulled high internally, allowing direct connection to system controllers for sequencing or sleep-mode control without external pull-ups.

Can the output voltage be adjusted to values other than 5V?

No. The EVQ2029-N-00A is configured as a fixed 5V output board using internal feedback. The MPQ2029 IC itself supports adjustable output via external resistors, but this board omits those components and routes feedback internally per the MPQ2029GN datasheet default.

What thermal performance can be expected at maximum load?

At 450mA and 40V input, surface temperature rise on the MPQ2029GN SOIC8-EP package is ≤35°C above ambient (measured per Rev. 1.0 test report). Thermal shutdown activates only if junction exceeds +125°C, confirmed via transient load testing.

Are all passive components on the board RoHS-compliant and lead-free?

Yes. All capacitors (Murata GRM series) and resistors (Yageo RC series) listed in the BOM are RoHS-compliant and lead-free. MPS certifies the entire EVQ2029-N-00A assembly as green per its Quality Assurance documentation.

How is the board powered and what connections are required for basic operation?

Power is applied via VIN and GND screw terminals or solder pads. A 6–40V DC source must be connected before enabling load; no external enable signal is needed as EN is internally tied high. VOUT and GND terminals deliver regulated 5V to the load.