Case Study: Mobile device/circuit design service provider achieves rapid detection of power‑management defects with Keysight CX3300 Device Current Waveform Analyzer

How to Resolve the Evaluation and Validation Challenge in Mobile Devices

Mobile Device/Circuit Design Service Provider faced rising evaluation and validation challenges as next‑generation mobile devices pushed for higher speed, lower voltages, and aggressive power‑management schemes while shortening time‑to‑market. To accurately characterize dynamic currents from sub‑milliamp sleep modes to multi‑amp active spikes and to debug power‑management transitions, they turned to Keysight and its CX3300 Series Device Current Waveform Analyzer (with the CX1105 ultra‑low noise differential sensor).

Keysight’s CX3300 delivered wide dynamic range (150 pA to 100 A), 16‑bit resolution, up to 200 MHz bandwidth, deep memory and automatic current profiling and analysis (FFT, CCDF), enabling single‑shot capture of sleep‑to‑active transitions and fast inrush currents. Using Keysight’s solution the engineer quickly identified a power‑management software defect, captured previously invisible DC/DC converter currents (e.g., an 8 mV = 800 mA event across a 10 mΩ shunt) and accelerated validation and debugging, improving product reliability and saving significant development time.