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LT8580EMS8E#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
LT8580
25
8580fa
For more information www.linear.com/LT8580
750kHz, –15V Output Inverting Converter Accepts 5V to 40V Input
Typical applicaTions
Efficiency and Power Loss (V
IN
= 12V)
60mA to 160mA to 60mA Output Load Step (V
IN
= 12V)
C
OUT
4.7µF
V
OUT
–15V
90mA (V
IN
= 5V)
210mA (V
IN
= 12V)
420mA (V
IN
= 40V)
L1
22µH
L2
22µH
C1
1µF
D1
182k
V
IN
5V TO 40V
V
IN
SW
8580 TA03a
LT8580
10k
13.7k
113k
SHDN
GND
FBX
VCSYNC
SSRT
10nF
47pF
0.22µF
C
IN
4.7µF
• •
L1, L2: COILCRAFT 22µH MSD7342-223
D1: CENTRAL SEMI CMMSH1-60
C
IN
: 4.7µF, 50V, 1206, X5R
C
OUT
: 4.7µF, 25V, 1206, X7R
C1: 1µF, 100V, 0805, X7S
LOAD CURRENT (mA)
0
10
EFFICIENCY (%)
POWER LOSS (mW)
30
40
50
100
90
8580 TA03b
20
50
150
200
60
70
80
0
240
400
640
320
80
160
480
560
EFFICIENCY
POWER LOSS
V
OUT
200mV/DIV
AC-COUPLED
I
STEP
100mA/DIV
I
L1
+ I
L2
200mA/DIV
200µs/DIV
8580 TA03c
LT8580
26
8580fa
For more information www.linear.com/LT8580
Typical applicaTions
1.2MHz Inverting Converter Generates –48V Output From 12V Input
Switching Waveforms
Efficiency and Power Loss
Start-Up Waveforms
C
OUT
2.2µF
V
OUT
–48V
70mA
L1
150µH
L2
330µH
C1
1µF
D1
576k
V
IN
12V
V
IN
SW
8580 TA04a
LT8580
619k
20.5k
69.8k
SHDN
GND
FBX
VCSYNC
SSRT
4.7nF
47pF
0.33µF
C
IN
1µF
C2
2.2µF
L1: COOPER 150µH DR74-151
L2: COOPER 330µH DR74-331
D1: DIODES, INC. DFLS1100
C
IN
: 1µF, 50V, 0805, X7R
C
OUT
: 2.2µF, 100V, 1206, X7R
C1: 1µF, 100V, 0805, X7S
C2: 2.2µF, 100V, 1206, X7S
49.9Ω
LOAD CURRENT (mA)
0
20
EFFICIENCY (%)
POWER LOSS (mW)
30
40
50
50
90
8580 TA04b
40 602010 30 70
60
70
80
200
560
800
1040
680
320
440
920
EFFICIENCY
POWER LOSS
V
OUT
20mV/DIV
AC-COUPLED
V
SW
20V/DIV
I
L1
+ I
L2
200mA/DIV
200µs/DIV
8580 TA04c
V
OUT
10V/DIV
V
SW
20V/DIV
I
L1
+ I
L2
200mA/DIV
200µs/DIV
8580 TA04d
LT8580
27
8580fa
For more information www.linear.com/LT8580
Typical applicaTions
Start-Up Waveforms
VFD (Vacuum Fluorescent Display) Power Supply Switches at 1MHz
Danger High Voltage! Operation by High Voltage Trained Personnel Only
Efficiency and Power Loss
(V
IN
= 12V with Load on V
OUT3
)
C1
1µF
V
OUT1
60V
60mA*
V
OUT3
180V
20mA*
V
OUT2
120V
30mA*
L1
68µH
C2
1µF
D1
698k
V
IN
9V TO 16V
V
IN
SW
8580 TA05a
LT8580
487k
22.1k
84.5k
SHDN
GND
FBX
VCSYNC
SSRT
4.7nF
330pF
0.47µF
C
IN
1µF
C4
1µF
C3
1µF
C5
1µF
D3
D2
L1: WÜRTH 68µH WE-LQS 74404084680
D1-D5: DIODES, INC. DFLS1100
C
IN
: 1µF, 100V, 1206, X7R
C1-C5: 1µF, 100V, 1206, X7S
*MAX TOTAL OUTPUT POWER 3.5W
22Ω
D4
22Ω
D5
OUTPUT POWER (W)
0
20
EFFICIENCY (%)
POWER LOSS (mW)
30
40
50
2.5
90
8580 TA05b
2 310.5 1.5 3.5
60
70
80
400
640
800
960
720
480
560
880
EFFICIENCY
POWER LOSS
V
OUT3
50V/DIV
V
OUT2
50V/DIV
V
OUT1
50V/DIV
I
L1
200mA/DIV
2ms/DIV
8580 TA05c
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32

LT8580EMS8E#TRPBF

Mfr. #:
Buy LT8580EMS8E#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Boost/SEPIC/Inverting DC/DC Converter with 1A, 60V Switch, Soft-Start and Synchronization
Lifecycle:
New from this manufacturer.
Delivery:
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