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Demonstration Board Quick Setup Procedures www.ti.com
4 Demonstration Board Quick Setup Procedures
Step Description Notes
1 Connect power supply to VIN terminals V
IN
range 7 V to 28V
2 Connect load to the VOUT terminals I
OUT
range 0A to 500 mA
3 SD jumper should left open for normal operation
-Short this jumper to shutdown
4 Set V
IN
= 12V, with no load applied, check V
OUT
with voltmeter 3.3 V ±100 mV
5 Apply 500 mA load and check V
OUT
again 3.3 V ±100 mV
6 Short output terminals and check short circuit current with an ammeter Nominal 1.4A
7 Short SD jumper to check for shutdown function
5 Demonstration Board Performance Characteristic
Description Symbol Condition Min Typical Max Unit
Input Voltage V
IN
7 12 28 V
Output Voltage V
OUT
3.2 3.3 3.4 V
Output Current I
OUT
0 0.5 1 A
Output Voltage Ripple V
OUT(Ripple)
20 MHz Bandwidth limit - - 40 mV
P-P
Output Voltage Regulation ΔV
OUT
All V
IN
and IOUT conditions 1.5 1.5 %
Efficiency V
IN
= 7 V 88 90 %
V
IN
= 28 V 73 80
(I
OUT
= 100 mA to 500 mA)
Output Short Current Limit I
LIM-SC
1.4 A
4
AN-1471 LM3489 Demonstration Board SNVA160A–May 2006–Revised April 2013
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