Linear Technology DC1839A, Demo Manual, Page: 4 / 8

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dc1839af
DEMO MANUAL DC1839A
QUICK START PROCEDURE
Figure 3. 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
V
IN
= 12V
V
DDQ
= 2.5V
V
TT
= 1.25V
f
SW
= 1MHz
Burst Mode OPERATION
L1 = 1μH
L2 = 0.47μH
VISHAY 2020BZ