Datasheet

5
dc1477af
DEMO MANUAL DC1477A
QUICK START PROCEDURE
V
IN
= 10V, V
OUT
= 30V, CCM Mode
1.5A to 3A Load Step
C
OUT
= 2 × 10µF Ceramic + 2 × 100µF Alum
V
IN
= 10V, V
OUT
= 30V, I
OUT
= 3A
W/O Input Filter: Short L2 and L3, Remove C
IN2
V
IN
Peak-to-Peak Ripple = 2.78V
V
IN
= 10V, V
OUT
= 30V, I
OUT
= 3A
W Input Filter: Stuff L2, L3 and C
IN2
V
IN
Peak-to-Peak Ripple = 0.47V
V
IN
= 36V, V
OUT
= 30V, CCM Mode
1.5A to 3A Load Step
C
OUT
= 2 × 10µF Ceramic + 2 × 100µF Alum
Figure 4. Measured Load Transient Response (1.5A Step, 50% to 100% )
Figure 5. Input Voltage Ripple Measured at C
IN1
with 300MHz BW Probe, with and without the Input Filter