Test Procedure for the LV5636VHGEVB 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) ········································································ 2pcs Electronic Load (e.g. FUJITSU ACCESS LIMITED Electric Load EUL-150αXL) ·························· 1pc Oscilloscope (e.g. LeCroy WaveRunner) ············································································ 1pc PGOOD PGDLY 2V Current limited DC Power Supply V1 Hi Multifunction Generator Hi Multifunction Generator LDOIN CTL Lo + - 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) or High level (2V) signal to CTL. (5) Apply Low level (0V) signal to EN. (6) Check that LDOIN=0[V] and LDOOUT=0[V]. (7) Apply IO(load)=0[A] to LDOOUT. (8) Apply High level (2V) signal to EN. (9) If CTL state = Low, Check that LDOIN=12.3[V] and LDOOUT=11.7[V] If CTL state = High, Check that LDOIN=16.5[V] and LDOOUT=15.9[V] (10) Set IO to desired level, 0[mA] – 410[mA], and measure LDOOUT voltage and LDOIN voltage. (11) Change CTL level to High or Low. And Confirm (9) and (10). (12) Apply Low level signal to EN. (13) Turn off IO(load). (14) Turn off VCC, V1, CTL and EN. 3/13/2014 1 www.onsemi.com