Linear Technology LT8330, Руководство пользователя

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LT8330
20
8330fa
For more information www.linear.com/LT8330
Typical applicaTions
8V to 30V Input, –24V Inverting Converter
4V to 36V Input, –12V Inverting Converter
4V to 16V Input, –5V Inverting Converter
2.2µF
34.8k
4.7µF
1µF
4.7pF
C5
1µF
1M
287k
V
OUT
V
IN
SW
FBX
GND
EN/UVLO
LT8330
8V TO 30V
V
IN
–24V
V
CC
INT
1M
D1
C1
C2
C3
D1: NXP PMEG6010CEJ
L1: WÜRTH WE-TDC 8038 74489440068
C3: MURATA GRM32ER71H475k
R1
R2
C4
R3
R4
L2
6.8µH
L1
6.8µH
160mA AT V
IN
= 8V
200mA AT V
IN
= 12V
250mA AT V
IN
= 24V
250mA AT V
IN
= 30V
8330 TA09
4.7µF
71.5k
4.7µF
1µF
4.7pF
C5
1µF
1M
806k
V
OUT
V
IN
SW
FBX
GND
EN/UVLO
LT8330
4V TO 36V
V
IN
–12V
V
CC
INT
1M
D1
C1
C2
C3
D1: NXP PMEG6010CEJ
L1: Coilcraft LPD5030-472MR
C3: MURATA GRM21BR71C475k
R1
R2
C4
R3
R4
L2
4.7µH
L1
4.7µH
170mA AT V
IN
= 4V
270mA AT V
IN
= 12V
280mA AT V
IN
= 24V
280mA AT V
IN
= 36V
8330 TA10
191k
4.7µF
1µF
4.7pF
C5
1µF
L1
2.7µH
L2
2.7µH
1M
806k
V
OUT
V
IN
SW
FBX
GND
EN/UVLO
LT8330
4V TO 16V
V
IN
–5V
V
CC
INT
1M
D1
C1
C2
C3
4.7µF
D1: NXP PMEG6010CEJ
L1: WÜRTH WE-TDC 8018 74489430027
C3: MURATA GRM21BR71C475k
R1
R2
C4
R3
R4
280mA AT V
IN
= 4V
300mA AT V
IN
= 5V
380mA AT V
IN
= 12V
380mA AT V
IN
= 16V
8330 TA11
Efficiency
Efficiency
Efficiency
INVERTING: V
OUT
= –24V
V
IN
= 8V
V
IN
= 12V
V
IN
= 24V
V
IN
= 30V
LOAD CURRENT (mA)
0 60 120 180 240 300
50
60
70
80
90
100
EFFICIENCY (%)
8330 TA09b
INVERTING : V
OUT
= –12V
V
IN
=4V
V
IN
=12V
V
IN
=24V
V
IN
=36V
LOAD CURRENT (mA)
0 60 120 180 240 300
50
60
70
80
90
100
EFFICIENCY (%)
8330 TA10b
INVERTING: V
OUT
= –5V
V
IN
= 4V
V
IN
= 5V
V
IN
= 12V
V
IN
= 16V
LOAD CURRENT (mA)
0 80 160 240 320 400
50
60
70
80
90
100
EFFICIENCY (%)
8330 TA11b