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LT3580IDD#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
LT3580
22
3580fg
TYPICAL APPLICATIONS
High Voltage Negative Power Supply Uses Tiny 5.8mm × 5.8mm × 3mm Transformer and Switches at 200kHz
Danger High Voltage! Operation by High Voltage Trained Personnel Only
C2
68nF
FOR ANY V
OUT
BETWEEN –50V TO
–350V, CHOOSE R
FB
ACCORDING TO
FOR 5V INPUT, KEEP MAXIMUM
OUTPUT POWER AT 1.58W
FOR 3.3V INPUT, KEEP MAXIMUM
OUTPUT POWER AT 0.88W
*MAY REQUIRE MULTIPLE SERIES
RESISTORS TO COMPLY WITH
MAXIMUM VOLTAGE RATINGS
V
OUT
–350V
4.5mA (V
IN
= 5V)
2.5mA (V
IN
= 3.3V)
T1
1:10.4
D1
R
FB
4.22M*
V
IN
3.3V TO 5V
V
IN
SW
3580 TA06
LT3580
464k
10k
SHDN
GND
7, 8
5, 6
1
4
FB
VC
SYNC SS
RT
10nF
100pF
0.47μF
C1
2.2μF
C1: 2.2μF, 25V, X5R, 1206
C2: TDK C3225X7R2J683M
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES
D2: ON SEMICONDUCTOR MBR0540
T1: TDK LDT565630T-041
•
•
V
OUT
83.3μA
R
FB
=
4.7μH
D2
LT3580
23
3580fg
TYPICAL APPLICATIONS
5V to 12V Boost Converter Switches at 2.5MHz and Uses a Tiny 4mm × 4mm × 1.7mm Inductor
Efficiency and Power Loss
vs Load Current
Transient Response with 400mA to
500mA to 400mA Output Load Step
Start-Up Waveforms
C2
4.7μF
V
OUT
12V
500mA
L1
3.3μH
D1
130k
V
IN
5V
V
IN
SW
3580 TA07a
LT3580
35.7k
10k
SHDN
GND
FB
VC
SYNC SS
RT
2.2nF
0.1μF
47pF
C1
4.7μF
C1, C2: 4.7μF, 25V, X5R, 1206
D1: MICROSEMI UPS120
L1: COILCRAFT LPS4018-332ML
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
POWER LOSS (W)
55
65
70
75
400
95
3580 TA07b
60
200
100
500
300 600
80
85
90
0
200
400
600
1400
800
1000
1200
I
L
0.5A/DIV
V
OUT
0.5V/DIV
AC COUPLED
100μs/DIV
3580 TA07c
I
L
1A/DIV
V
OUT
5V/DIV
V
SHDN
1V/DIV
2ms/DIV500mA LOAD
3580 TA07d
LT3580
24
3580fg
TYPICAL APPLICATIONS
–5V Output Inverting Converter Switches at 2.5MHz and Accepts Inputs Between 3.3V to 12V
Efficiency and Power Loss
vs Load Current
C2
10μF
V
OUT
–5V
800mA (V
IN
= 12V)
620mA (V
IN
= 5V)
450mA (V
IN
= 3.3V)
L1
4.7μH
C3
1μF
D1
60.4k
V
IN
3.3V TO 12V
V
IN
SW
3580 TA08a
LT3580
35.7k
10k
SHDN
GND
FB
VC
SYNC SS
RT
2.2nF
100pF
0.1μF
C1
2.2μF
C1: 2.2μF, 25V, X5R, 1206
C2: 10μF, 25V, X5R, 1206
C3: 1μF, 50V, X5R, 0805
D1: CENTRAL SEMI CMMSH1-40
L1, L2: COILCRAFT LSP4018-472ML
L2
4.7μH
LOAD CURRENT (mA)
0
40
EFFICIENCY (%)
POWER LOSS (W)
45
55
60
65
400
85
3580 TA08b
50
200
100
500
300 700600
70
75
80
0
200
400
600
1200
800
1000
V
IN
= 5V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

LT3580IDD#PBF

Mfr. #:
Buy LT3580IDD#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 2A Boost/Inverting Switching Regulator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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