ATE Test Development — DC/DC Regulator


Production-grade ATE program and custom load-board design on the Teradyne Integra FLEX platform. Comprehensive parametric, dynamic and protection verification for the (4A synchronous buck).



Platform: Teradyne Integra FLEX Device: DC/DC Regulator Coverage: DC · Dynamic · Protection · Thermal

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Why Teradyne Integra FLEX

Flexible instrument integration, multisite capability and deterministic timing make Integra FLEX ideal for mixed-signal power device production testing and characterization.

  • Multi-instrument orchestration
  • High throughput with multisite scaling
  • Deterministic stimulus & capture for transient analysis

Load Board & Measurement

Custom multi-layer load boards with Kelvin sensing, snubbers and thermal vias to ensure accurate low-level analog measurements and reliable thermal handling during 4A testing.

Precision Kelvin sense for FB and VIN
Isolated dynamic load channels up to 5A
RC snubbers at switching nodes

Optimization & Results

Sequencing, multisite enablement and measurement grouping reduced test time while maintaining repeatability and datasheet-level coverage.

22%
Test time saved
4A
Max device current
<1%
Measurement variance

Test Plan Snapshot

  1. DC parametrics: VIN/UVLO, VOUT accuracy, quiescent and shutdown current.
  2. Transient: 0→4A load steps, VOUT & PH capture, ripple & stability.
  3. Oscillator: FS resistor calibration and sync behavior.
  4. Protection: OCP via ISET, hiccup timing, thermal shutdown across temperature sweep.
  5. Efficiency profiling at 2.5V, 3.3V and 5V inputs.

Hardware & Instrumentation

  • Teradyne Integra FLEX with SMU and DMM integration
  • AWGs for sync clock & stimulus
  • Programmable dynamic electronic loads for transient verification
  • Temperature chamber for -40°C to +125°C characterization

Technology Stack

  • Teradyne Integra FLEX ATE (multi-instrument)
  • TestStand flow + C++ modules
  • Precision SMUs, DMMs, AWGs, dynamic loads
  • Thermal chamber integration and data logging

Key Metrics

22%
Test time reduction
4A
Max device current
<1%
Measurement variance

Contact & Download

Get the printable case study or request a technical walkthrough for your PMIC or power device.

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Want this test solution for your product?

We can adapt the similar DC/DC Regulator test modules and load-board design to your PMIC or power management devices. Fast integration with Teradyne ATE and production-ready test flows.