DC1477A Linear Technology, DC1477A Datasheet - Page 4

• Manufacturer Part Number: DC1477A
• Description: BOARD EVAL LTM4609
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1477A

• Main Purpose: DC/DC, Step Up or Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 30V
• Current - Output: 10A
• Voltage - Input: 10 ~ 36V
• Regulator Topology: Buck-Boost
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4609
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

V
1.5A to 3A load step
C
V
W/O input filter: short L2 & L3, remove Cin2
V
Figure 5. Input voltage ripple measured at Cin1 with 300MHz bandwidth probe, W/O vs. W/ the input filter.
OUT
IN
IN
IN
=10V, V
=10V, V
peak-to-peak ripple=2.78V
=2×10uF ceramic + 2×100uF Alum
V
OUT
SW2 (10V/div)
QUICK START GUIDE FOR DEMONSTRATION CIRCUIT DC1477A
SW1 (20V/div)
OUT
OUT
V
(200mV/div)
IN
=30V, CCM mode
=30V, I
(1V/div)
Figure 4. Measured Load Transient Response (1.5A Step, 50% to 100%).
OUT
=3A
I
OUT
HIGH VOLTAGE BUCK-BOOST POWER MODULE
step (1A/div)
V
1.5A to 3A load step
C
V
W/ input filter: stuff L2, L3 and Cin2
V
OUT
IN
IN
IN
=36V, V
=10V, V
peak-to-peak ripple=0.47V
=2×10uF ceramic + 2×100uF Alum
V
OUT
SW2 (10V/div)
SW1 (20V/div)
OUT
V
OUT
(200mV/div)
IN
=30V, CCM mode
=30V, I
(1V/div)
OUT
=3A
I
OUT
step (1A/div)
4