Datasheet

LM5020
C5
0.01 PF
SS
R6
12.4k
GND GND
C8
100 pF
RT
COMP
10
9
3
SYNC
U1
GND
6
V
FB
2
CS
8
R5
15.0k
C7
3300 pF
C6
220 pF
100
R7
C11
1000 pF
R8
0.47
R9
0.47
GND GND GND
OUT
5
UVLO
7
V
IN
1
V
CC
4
C10
4.7 PF
C4
0.1 PF
GNDGND
R1
10
R4
1.00k
R2
61.9k
C2
2.2 PF
GND
C1
2.2 PF
GND
SD
C3
0.01 PF
GND
R3
2.87k
GND
V+
1
J1
30-75V IN
3 2 1 4
Q1
Si7898DP
6 7 8 5
GND
D1
CMPD2838E
Z1
1SMB5936B
GND
T1
D3
MBRD835L
D2
CMPD2838E
20
R13
GND
C12
470 pF
10, 1W
R10
GND
R12
1.47k
R11
2.43k
0.1 PF
C9
GND
OUT RTN
1
2
GND
GND
2
J2
+3.3V
C13
100 PF
GND
C14
100 PF
GND
C15
270 PF
GND
Application Circuit www.ti.com
12 Application Circuit
Figure 12. Application Circuit: Input 36V to 78V, Output 3.3V, 4.5A
10
AN-1314 LM5020 Evaluation Board SNVA082B–March 2004–Revised May 2013
Submit Documentation Feedback
Copyright © 2004–2013, Texas Instruments Incorporated