Test Procedure for the LV56351HAGEVB Evaluation Board The following steps detail the basic test procedure for all these boards: Suggested equipment: Current limited DC Power Supply (e.g. ADVANTEST R6243 DC Voltage Current Source/Monitor) ···· 2pcs Digital Multimeter (e.g. ADVANTEST R6452 Digital Multimeter) ············································ 2pcs Multifunction Generator (e.g. NF WF1974) ········································································ 1pc Electronic Load (e.g. FUJITSU ACCESS LIMITED Electric Load EUL-150αXL) ·························· 1pc Oscilloscope (e.g. LeCroy WaveRunner) ············································································ 1pc PGOOD 2V SCP Current limited DC Power Supply V1 LDOIN Hi Multifunction Generator + - EN Digital Multimeter Lo LDOOUT VCC IO Current limited DC Power Supply 12V + Electronic Load - + - Digital Multimeter GND Figure 1: Test Setup Test Procedure: (1) Connect the test setup as shown in Figure 1 (2) Apply 12Vdc to VCC. (3) Apply 2Vdc to V1. (4) Apply Low level (0V) signal to EN. (5) Check that LDOIN=0[V] and LDOOUT=0[V]. (6) Apply IO(load)=0[A] to LDOOUT. (7) Apply High level (2V) signal to EN. (8) Check that LDOIN=17.5[V] and LDOOUT=16.5[V] (9) Set IO to desired level, 0[mA] – 300[mA], and measure LDOOUT voltage and LDOIN voltage. (10) Apply Low level signal to EN. (11) Turn off IO(load). (12) Turn off VCC, V1, and EN. 3/13/2014 1 www.onsemi.com