ISL6551EVAL1 Intersil, ISL6551EVAL1 Datasheet - Page 51

• Manufacturer Part Number: ISL6551EVAL1
• Description: EVALUATION BOARD ISL6551
• Manufacturer: Intersil

Specifications of ISL6551EVAL1

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Isolated
• Voltage - Output: 3.3V
• Current - Output: 60A
• Voltage - Input: 36 ~ 75V
• Regulator Topology: Buck
• Frequency - Switching: 470kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ISL6551
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

D
C
B
A
SBRTN
SB+48VF
C52
5
5
at least
0.7mA
1
2
3
4
R103
12VREF
R78
Cathode
Anode
Anode
NC
0
M7
TL431AID
REF
Anode
Anode
C78
1n
NC
Tie this resistor
in front of the
input capacitor
11/1/2001
SBICRTN
8
7
6
5
C54
10n
at least
1.3mA
2.5VREF
R79
R88
20k
R80
60.4k
R84
C50
0.1u
C53
10n
4
4
R90
24.9k
RTH1
R81
200k
R86
16.2k
Input UV and Thermal Circuits
R82
1k
C51
1n
Input UV and Thermal Circuits
Q22
SBICRTN
LM393D
3
2
C55
1n
R91 100k
MMBT5551LT1, 160V, B=80, DNP
U2A
+
-
5
6
LM393D
U2B
+
-
OUT
Vsat=0.7
@ 4mA
C131 10n
R85 499k
OUT
1
7
3
3
C56
0.1u
D21
3
R87
20k
D22
Title
Size
Date:
A
1
2
3
4
Telecom Power Supply Schematics, 3.3V@60A
Document Number
ISL6551EVAL1
Anode
Cathode
NC
NC
Thursday, April 18, 2002
M8
IL217AT
R83
Collector
Emitter
2
2
0
NC
Base
8
7
6
5
R89
100k
C77
10n
Q23
1
SAICRTN
Sheet
2N7002LT1
34.3V
5
1
1
33.3V
o f
SB+12V
SA+12V
ENABLE
6
R e v
C
D
C
B
A