DC823B-B Linear Technology, DC823B-B Datasheet - Page 5

• Manufacturer Part Number: DC823B-B
• Description: BOARD EVAL LTM4600HV
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC823B-B

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
• Current - Output: 10A (Max)
• Voltage - Input: 4.5 V ~ 28 V
• Regulator Topology: Buck
• Frequency - Switching: 1.35MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4600HV
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

TYPICAL PERFOR A CE CHARACTERISTICS
Short-Circuit Protection,
I
V
V
C
NO EXTERNAL SOFT-START CAPACITOR
OUT
IN
OUT
OUT
= 12V
= 1.5V
= 2× 200μF/X5R
= 0A
20μs/DIV
0.605
0.595
0.590
0.610
0.600
(0.5V/DIV)
(0.2A/DIV)
V
Start-Up, I
V
V
C
NO EXTERNAL SOFT-START CAPACITOR
I
OUT
IN
OUT
OUT
–55
IN
V
= 12V
OSET
= 1.5V
= 200μF
–25
4600hv G12
vs Temperature
W
OUT
TEMPERATURE (°C)
5
200μs/DIV
= 0A
U
35
(0.5V/DIV)
(0.5A/DIV)
V
I
OUT
IN
65
Short-Circuit Protection,
I
V
V
C
NO EXTERNAL SOFT-START CAPACITOR
OUT
IN
OUT
OUT
= 12V
4600hv G10
= 1.5V
= 2× 200μF/X5R
95
= 10A
4600HV G15
125
(0.5V/DIV)
V
OUT
(0.5A/DIV)
20μs/DIV
I
IN
4600hv G13
Start-Up Waveform, T
V
V
I
Start-Up, I
(Resistive Load)
V
V
C
NO EXTERNAL SOFT-START CAPACITOR
OUT
IN
OUT
IN
OUT
OUT
= 12V
= 12V
(See Figure 21 for all curves)
= 10A
= 1.5V
= 200μF
= 1.5V
OUT
400μs/DIV
200μs/DIV
= 10A
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
0
SEE FREQUENCY ADJUSTMENT DISCUSSION
FOR 12V
CONVERSION
f
(0.5A/DIV)
IN
ADJ
(0.5V/DIV)
A
V
to V
= –55°C
I
OUT
= OPEN
IN
IN
5
OUT
TO 5V
LTM4600HV
4600HV G16
4600hv G11
Stepdown Ratio
OUT
0.6V
10
V
IN
AND 5V
(V)
1.2V
15
1.5V
IN
TO 3.3V
20
3.3V
2.5V
1.8V
OUT
4600HV G14
5V
4600hvfc
5
24