NCP729FC28GEVB

Test Procedure for the NCP729FC28GEVB Evaluation Board 10-MAY-2012 Test Setup 1: Figure 1. Test setup for the measurements of basic regulation characteristics Required Equipment: 2 x Voltmeters 2 x Ampere meters DC Power Supply – Max. 5.5V Electronic Load Test Procedure for the Measurement of Line Regulation parameter using Test Setup 1: 1. Connect the test setup as shown on Figure 1 2. Set the electronic load for the required load current e.g. IOUT = 10mA 3. Apply the required minimum input voltage e.g. VIN_MIN = VOUT_NOM + 0.3V (1) 6/11/2012 -1- www.onsemi.com 4. Note the output voltage reading VOUT1 indicated by VOTLMETER2 5. Apply the required maximum input voltage e.g. VIN_MAX = VOUT_NOM + 1.3V (1) 6. Note the output voltage reading VOUT2 indicated by VOTLMETER2, 7. Calculate the Line Regulation parameter as: RegLINE = (VOUT2 – VOUT1) / (VIN_MAX – VIN_MIN) [V/V] 8. Turn off the electronic load. Turn off the input power supply 9. End of the test Test Procedure for the Measurement of Load Regulation parameter using Test Setup 1: 1. Connect the test setup as shown on Figure 1 2. Set the electronic load for the required minimum output current e.g. IOUT_MIN = 1mA 3. Apply the desired input voltage e.g. VIN = VOUT_NOM + 0.3V (1) 4. Note the output voltage reading VOUT1 indicated by VOTLMETER2 5. Set the electronic load for the required maximum output current e.g. IOUT_MAX = 150mA 6. Note the output voltage reading VOUT2 indicated by VOTLMETER2 7. Calculate the Load Regulation parameter as: RegLOAD = (VOUT2 – VOUT1) / (IOUT_MAX – IOUT_MIN) [V/A] 8. Turn off the electronic load. Turn off the input power supply 9. End of the test (1) VOUT_NOM is the nominal output voltage level of the regulator. NCP729 operating VIN must be in the range 2.0V ≤ VIN ≤ 5.5V 6/11/2012 -2- www.onsemi.com