NV8664ST50T3GEVB NCV8664 Evaluation Board User's Manual http://onsemi.com EVAL BOARD USER’S MANUAL Description The NCV8664 is a precision 3.3 V and 5.0 V fixed output, • Wide Input Voltage Operating Range of 5.5 V to 45 V low dropout integrated voltage regulator with an output • Internal Fault Protection current capability of 150 mA. Careful management of light • −42 V Reverse Voltage load current consumption, combined with a low leakage • Short Circuit/Overcurrent process, achieve a typical quiescent ground current of • 22(cid:2)A. The output voltage is accurate within ±2.0%, and Thermal Overload maximum dropout voltage is 600 mV at full rated load Board Notes current. The following ceramic capacitors are the Max voltage on V cap not to exceed 35 V. recommended values to be used with these devices; C = in in 0.1(cid:2)F, C = 10 (cid:2)F. out Board Layouts These boards are shown in sets of 2 due to the minimum Features • ±2.0% Output Accuracy, Over Full Temperature Range board size requirement of most board fabrication houses. When sent out for fabrication, it must be indicated that the • 30 (cid:2)A Maximum Quiescent Current at Iout = 100 (cid:2)A center line of the board set be V−scored to allow board • 600 mV Maximum Dropout Voltage at 150 mA Load separation. Current Figure 1. Evaluation Board Photo © Semiconductor Components Industries, LLC, 2012 1 Publication Order Number: May, 2012 − Rev. 1 EVBUM2117/D

NV8664ST50T3GEVB Figure 2. SOT−223 Evaluation Board Figure 3. DPAK Evaluation Board SCHEMATIC FOR THE NCV8664 EVALUATION BOARD NCV8664 Demo Board Vin NCV8664 Vout Cin Cout Figure 4. NCV8664 Evaluation Board Circuit http://onsemi.com 2

NV8664ST50T3GEVB Table 1. BILL OF MATERIALS FOR THE NCV8664 EVALUATION BOARD n o Value Tolerance Footprint Manufacturer Part Number SubstitutiAllowed Lead Free SOT223 BOM − − − Advanced Circuits NCV8664DPAK3DemoBoard No Yes − − SOT223 On Semiconductor NCV8664ST50R3G No Yes − − − Molex/Waldom Electronics Corporation 22−28−8030 Yes Yes 0.1 (cid:2)F 10% 1206 Murata Electronics North America GRM319R71H104KA01D Yes Yes 10 (cid:2)F 10% 1206 Murata Electronics North America GRM31CR71C106KAC7L Yes Yes DPAK BOM − − − Advanced Circuits NCV8664DPAK3DemoBoard No Yes − − DPAK On Semiconductor NCV8664DT50RKG No Yes − − − Molex/Waldom Electronics Corporation 22−28−8030 Yes Yes 0.1 (cid:2)F 10% 1206 Murata Electronics North America GRM319R71H104KA01D Yes Yes 10 (cid:2)F 10% 1206 Murata Electronics North America GRM31CR71C106KAC7L Yes Yes Test Procedure Required Equipment: • • Resistive Load One NCV8664 Evaluation Board • • 2 Multimeters DC Power Supply NCV8664 Demo Board DC Power Supply I Vin NCV8664 Vout O Cin Cout GND + Load + − DC DC − Voltmeter Voltmeter G Figure 5. Dropout Voltage Test Setup Dropout Voltage Verification Steps 3.Reduce V until V has dropped by 100 mV. in out 1.Connect circuit as shown in Figure 5. 4.Subtract V from V . Resulting Voltage is out in 2.Set V = 13.5 V, Record V . Dropout Voltage. in out http://onsemi.com 3

NV8664ST50T3GEVB 0.40 Quiescent Current Verification Steps 1.Connect circuit as shown in Figure 7. 0.35 2.Set V = 13.5 V. V) in E (0.30 3.Subtract Output Current from Input Current. G A0.25 T L O V0.20 T U O0.15 P O R0.10 D 0.05 0 0 50 100 150 200 OUTPUT CURRENT (mA) Figure 6. Dropout Voltage vs. Output Current DC DC Ammeter Ammeter + − + − NCV8664 Demo Board DC Power Supply I Vin NCV8664 Vout O Cin Cout GND Load G Figure 7. Quiescent Current Verification Setup http://onsemi.com 4

NV8664ST50T3GEVB 10 Output Voltage Verification Steps A) 9 1.Connect circuit as shown in Figure 9. N (m 8 2.SVet o.utput load to 100 (cid:3), Set Vin = 0 V, Record O out TI 7 3.Increase V , measure V . P in out M 6 U S 5 N O C 4 T N 3 E R R 2 U C 1 Vin = 13.5 V 0 0 50 100 150 200 OUTPUT CURRENT (mA) Figure 8. Current Consumption vs. Output Current NCV8664 Demo Board DC Power Supply I Vin NCV8664 Vout O Cin Cout GND + Load + − DC DC − Voltmeter Voltmeter G Figure 9. Quiescent Current Verification Setup 6 5 V) GE (4 A T L O3 V T U P2 T OU RL = 100 (cid:3) 1 0 0 10 20 30 40 INPUT VOLTAGE (V) Figure 10. Input Voltage vs. Output Voltage http://onsemi.com 5

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