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LT3581EMSE#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36
LT3581
31
3581fb
For more information www.linear.com/LT3581
TYPICAL APPLICATIONS
Efficiency
V
BAT
3V TO 36V
(V
BAT
AT START-UP = 6V TO 16V)
100k
10k
24.9k
174k
C1
10µF
2.2nF
3581 TA07a
1µF
C5
47µF
×2
10k
V
OUT
3.3V
0.9A (3V < V
BAT
< 9V)
1.5A (V
BAT
= 9V)
C2
10nF
Q1
C3
4.7µF
C4
2.2µF
SW1 SW2
FB
CLKOUT
GATE
V
C
SS
V
IN
RT
GND
SYNC
FAULT
SHDN
LT3581
47pF
C1: 10µF, 50V, X7R, 1210
C2: 10nF, 25V, X7R, 0603
C3: 4.7µF, 25V, X7R, 1206
C4: 2.2µF, 50V, X7R, 1206
C5: 47µF, 10V, X7R, 1210
D1: CENTRAL SEMI CMHZ5248B-LTZ
D2: CENTRAL SEMI CMMSH2-40
D3: DIODES INC. PD3S230H-7
L1, L2: COILCRAFT MSD7342-332MLB
M1: 2N7002
Q1: MMBT3904
L2
3.3µH
L1
3.3µH
•
•
D2
M1
D3
D1
18V
470pF
10k
200k
Wide Input Range, 3.3V SEPIC Converter Can Operate from 3V to 36V
Wide Input Range SEPIC Can Ride Through V
BAT
Voltages that Are Higher than V
IN_OVP
V
BAT
10V/DIV
V
OUT
2V/DIV
I
L
2A/DIV
3581 TA07c
1s/DIV
V
BAT
= 17V
V
BAT
= 31V
V
OUT
= 3.3V
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
55
65
70
75
400
80
3581 TA07b
60
1600
800 1200
V
BAT
= 3V
V
BAT
= 9V
V
BAT
= 12V
LT3581
32
3581fb
For more information www.linear.com/LT3581
TYPICAL APPLICATIONS
1MHz, ±12V Charge Pump Topology Uses Only Single Inductor
V
IN
5V
100k
130k
86.6k
C1
3.3µF
2.2nF
3581 TA08a
0.1µF
C4
10µF
C5
10µF
16.9k
V
OUT
+
12V
0.27A
V
OUT
–
–12V
0.27A
C2
1µF
SW1 SW2
FB
CLKOUT
GATE
V
C
SS
V
IN
RT
GND
SYNC
FAULT
SHDN
LT3581
100pF
C1: 3.3µF, 25V, X7R, 1206
C2, C3: 1µF, 25V, X7R, 1206
C4, C5: 10µF, 50V, X7R, 1210
D1 TO D5: DIODES INC. PD3S230H-7
L1: VISHAY IHLP-2525CZ-01-8R2
R1: 2.4k, 2W
*IF DRIVING ASYMMMETRICAL LOADS,
PLACE A 2.4k, 2W RESISTOR FROM THE 12V
OUTPUT TO THE –12V OUTPUT FOR IMPROVED
LOAD REGULATION OF THE –12V OUTPUT
D2
D1
L1
8.2µH
D3
C3
1µF
D4
D5
R1
*2.4k
Efficiency and Power Loss with
Symmetric Load
700kHz, –5V Inverting Converter Can Accept Input Voltages from 3V to 16V
V
IN
3V TO 16V
100k
60.4k
124k
C1
22µF
2.2nF
3581 TA09a
0.1µF
C3
22µF
6.19k
V
OUT
–5V
0.9A (V
IN
= 3.3V)
1.5A (V
IN
= 12V)
1.6A (V
IN
= 16V)
C2
1µF
SW1 SW2
FB
CLKOUT
GATE
V
C
SS
V
IN
RT
GND
SYNC
FAULT
SHDN
LT3581
56pF
C1: 22µF, 25V, X7R, 1210
C2: 1µF, 50V, X7R, 1206
C3: 22µF, 16V, X7R, 1210
D1: VISHAY SSB44
L1, L2: COILCRAFT MSD7342-332MLB
L2
3.3µH
D1
L1
3.3µH
•
•
Efficiency
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
POWER LOSS (mW)
55
65
70
75
15050
90
3581 TA08b
60
100 300250200
80
85
0
200
600
1800
1200
1400
1600
400
800
1000
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
55
65
70
75
300
90
3581 TA09b
60
1800
900 1500600 1200
80
85
V
IN
= 3.3V
V
IN
= 12V
V
IN
= 16V
Efficiency
700kHz, 5V SEPIC Can Accept Input Voltages from 3V to 16V
V
IN
3V TO 16V
100k
45.3k
124k
C1
22µF
2.2nF
3581 TA10a
1µF
C3
22µF
×2
7.87k
V
OUT
5V
0.9A (V
IN
= 3V)
1.5A (12V ≤ V
IN
≤ 16V)
C2
1µF
SW1 SW2
FB
CLKOUT
GATE
V
C
SS
V
IN
RT
GND
SYNC
FAULT
SHDN
LT3581
100pF
C1: 22µF, 25V, X7R, 1210
C2: 1µF, 50V, X7R, 1206
C3: 22µF, 16V, X7R, 1210
D1: DIODES INC. B230LA
L1, L2: COILCRAFT MSD7342-332MLB
L2
3.3µH
L1
3.3µH
•
•
D1
LOAD CURRENT (mA)
0
50
EFFICIENCY (%)
55
65
70
75
400
90
3581 TA10b
60
1600
800 1200
80
85
V
IN
= 3.3V
V
IN
= 12V
V
IN
= 16V
LT3581
33
3581fb
For more information www.linear.com/LT3581
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
MSOP (MSE16) 0213 REV F
0.53 ±0.152
(.021 ±.006)
SEATING
PLANE
0.18
(.007)
1.10
(.043)
MAX
0.17 –0.27
(.007 – .011)
TYP
0.86
(.034)
REF
0.50
(.0197)
BSC
16
16151413121110
1 2 3 4 5 6 7 8
9
9
1
8
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
6. EXPOSED PAD DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH ON E-PAD SHALL
NOT EXCEED 0.254mm (.010") PER SIDE.
0.254
(.010)
0° – 6° TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
5.10
(.201)
MIN
3.20 – 3.45
(.126 – .136)
0.889 ±0.127
(.035 ±.005)
RECOMMENDED SOLDER PAD LAYOUT
0.305 ±0.038
(.0120 ±.0015)
TYP
0.50
(.0197)
BSC
BOTTOM VIEW OF
EXPOSED PAD OPTION
2.845 ±0.102
(.112 ±.004)
2.845 ±0.102
(.112 ±.004)
4.039 ±0.102
(.159 ±.004)
(NOTE 3)
1.651 ±0.102
(.065 ±.004)
1.651 ±0.102
(.065 ±.004)
0.1016 ±0.0508
(.004 ±.002)
3.00 ±0.102
(.118 ±.004)
(NOTE 4)
0.280 ±0.076
(.011 ±.003)
REF
4.90 ±0.152
(.193 ±.006)
DETAIL “B”
DETAIL “B”
CORNER TAIL IS PART OF
THE LEADFRAME FEATURE.
FOR REFERENCE ONLY
NO MEASUREMENT PURPOSE
0.12 REF
0.35
REF
MSE Package
16-Lead Plastic MSOP, Exposed Die Pad
(Reference LTC DWG # 05-08-1667 Rev F)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36

LT3581EMSE#TRPBF

Mfr. #:
Buy LT3581EMSE#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 3A Boost/Inverting DC/DC Converter with Fault Protection
Lifecycle:
New from this manufacturer.
Delivery:
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