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dc1839af
DEMO MANUAL DC1839A
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VARIABLERESISTOR
QUICK START PROCEDURE
Figure 1. Proper Measurement Equipment Setup
Page 1: ...wners PERFORMANCE SUMMARY forced continuous mode In Burst Mode operation which isthepreferredmodeoflowloadcurrentoperation theDC supply current is typically only 1 3mA both channels at no load sleep m...
Page 2: ...hown in the test set up diagram connect a variable resistor from VIN to VOUT along with an ampmeter The current will be VIN minus VOUT divided by the variable resistor value VDDQ output voltage tolera...
Page 3: ...3 dc1839af DEMO MANUAL DC1839A VS VARIABLE RESISTOR QUICK START PROCEDURE Figure 1 Proper Measurement Equipment Setup...
Page 4: ...LTC3634 DC1839A Efficiency Figure 2 Measuring Input or Output Ripple GND VIN LOAD CURRENT A 0 EFFICIENCY 100 10 90 70 50 30 80 60 40 20 0 dc1839a F03 3 0 1 5 2 5 1 0 2 0 0 5 VIN 12V VDDQ 2 5V VTT 1 25...
Page 5: ...0pF TRACE 3 OUTPUT VOLTAGE 50mV DIV AC TRACE 4 OUTPUT CURRENT 1A DIV dc1839a F04 VIN 12V VTT 0 9V 3A LOAD STEP 3A TO 3A FORCED CONTINUOUS MODE fSW 1MHz EXTERNAL COMPENSATION RITH2 15k CITH2 1000pF TRA...
Page 6: ...Board Circuit Components 1 0 CC1 CC2 OPTION CAP 0402 10pF 5 25V NPO NIC NMC0402NPO100J25TRPF 2 0 CDDQIN OPTION CAP 0805 10 F 10 6 3V X5R OPTION NIC NMC0805X5R106K6 3TRPLP3KF 3 0 CIN3 CIN4 OPTION CAP 1...
Page 7: ...GNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE...
Page 8: ...DING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONS...
