STMicroelectronics STEVAL-QUADV01

Overview

STEVAL-QUADV01 from STMicroelectronics is a power management evaluation board integrating four distinct DC-DC and LDO regulators: L6981 (3.5–38 V input, 1.5 A), L7983 (3.5–60 V, 300 mA), ST1PS03 (1.8–5.5 V, 400 mA with digital voltage selection), and ST730 (2.5–28 V, 300 mA LDO with 5 µA quiescent current). It supports rapid prototyping of multi-rail power architectures in industrial and automotive subsystems.

For engineers reviewing the STEVAL-QUADV01 datasheet, STEVAL-QUADV01 pinout, STEVAL-QUADV01 application, or STEVAL-QUADV01 equivalent, this board enables comparative validation of synchronous buck efficiency, ultra-low IQ operation, programmable output selection, and LDO stability under dynamic load transients across four independent rails.

Technical Context

The board implements four functionally isolated power stages: L6981 operates as a high-current (1.5 A), wide-input (up to 38 V) synchronous buck with internal compensation and soft-start; L7983 delivers 300 mA from up to 60 V input with 10 µA quiescent current and FSW monitoring capability.

L7983PUR and ST1PS03AQTR both support digital voltage selection via D0/D1 pins, while ST1PS03 adds an independent AUX-controlled load switch and Power Good signal; ST730MR provides low-noise, low-dropout regulation with SOA protection and enable control.

Key Specifications

Availability

STEVAL-QUADV01 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and IoT edge node power architecture validation requiring stable component supply and multi-rail design flexibility.

Supply support for STEVAL-QUADV01 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer applications.

This evaluation board belongs to ST's STEVAL series-engineered to accelerate power system design verification by providing pre-layout, tested reference implementations of key regulator topologies.

FAQ

What are the supported input voltage ranges for each regulator on STEVAL-QUADV01?

L6981 accepts 3.5 V to 38 V; L7983 supports 3.5 V to 60 V; ST1PS03 operates from 1.8 V to 5.5 V; ST730 functions from 2.5 V to 28 V. Each rail has independent input connectors and decoupling, enabling simultaneous testing under mismatched source conditions without cross-coupling.

Does STEVAL-QUADV01 support programmable output voltages?

Yes: ST1PS03AQTR offers digitally selectable outputs (1.6 V, 1.8 V, 2.5 V, 3.3 V) via D0/D1 pins; L6981 and L7983 use external resistor dividers for adjustable VOUT (0.85 V to VIN); ST730MR supports fixed or adjustable outputs using the ADJ pin and external resistors.

How do STEVAL-QUADV01A and STEVAL-QUADV01B differ in EN pin handling?

STEVAL-QUADV01A requires external connection of the EN pin to VIN to activate regulators; STEVAL-QUADV01B integrates pull-up resistors on all EN lines, enabling automatic turn-on without external wiring. Both versions retain full enable/disable control via header pins when needed.

Can STEVAL-QUADV01 be used for EMI or thermal performance evaluation?

Yes: the board includes test points for switching node probing, dedicated ground planes per regulator, and footprint-compatible inductor options (e.g., 22 µH for L6981, 47 µH for L7983). Thermal vias and copper pour areas allow direct IR imaging of hotspots during 1.5 A or 400 mA sustained loads.