Linear Technology DC2367A Demo Manual page 3

QUICK START PROCEDURE
+
0A TO 3A
–
90
RUN2 = OFF
85
80
75
70
65
60
0
Figure 2. VDDQ 12V
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+
LOAD
–
+
–
VDDQ = 2.5V
VDDQ = 1.8V
VDDQ = 1.5V
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
dc2367a F02
Efficiency
IN
DEMO MANUAL DC2367A
–
+
+ –
+
–
Figure 1. Test Setup
80
75
70
65
60
55
50
0
V
IN
+
–
VARIALE RESISTOR
(OPTIONAL) FOR
SINK CURRENT TEST
+
LOAD
0A TO 3A
–
+
–
RUN1 = OFF
VDDQIN, SUPPLIED
EXTERNALLY
VTT = 1.25V
VTT = 0.9V
VTT = 0.75V
0.5 1.0 1.5 2.0 2.5
OUTPUT CURRENT (A)
dc2367a F03
Figure 3. VTT 12V Efficiency
IN
+
–
3.0
dc2367af
3