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LT8580EMS8E#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P32
LT8580
31
8580fa
For more information www.linear.com/LT8580
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
revision hisTory
REV DATE DESCRIPTION PAGE NUMBER
A 09/16 Changed Minimum On-Time in the Electrical Characteristics table to typical room value instead of worst case.
Added Minimum On-Time vs Temperature graph.
Added text and equations explaining minimum on-time.
Clarified inductor paragraph in the Applications Information section.
Adjusted R
C
, R
L
, R
O
, g
ma
and resultant gain and phase margin numbers and plot to better reflect applications and the
Electrical Characteristics table.
Clarified Thermal Calculations section.
Corrected L
MIN
equation.
Clarified the Related Parts table.
3
5
9
10, 11
11, 14
17
21, 22, 23
32
LT8580
32
8580fa
For more information www.linear.com/LT8580
LINEAR TECHNOLOGY CORPORATION 2014
LT 0916 REV A • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LT8580
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LT1613 550mA (I
SW
), 1.4MHz High Efficiency Step-Up DC/DC Converter V
IN
: 0.9V to 10V, V
OUT(MAX)
= 34V, I
Q
= 3mA, I
SD
< 1µA,
ThinSOT Package
LT1618 1.5A (I
SW
), 1.4MHz High Efficiency Step-Up DC/DC Converter V
IN
: 1.6V to 18V, V
OUT(MAX)
= 35V, I
Q
= 1.8mA, I
SD
< 1µA,
MS10, 3mm × 3mm DFN Packages
LT1930/
LT1930A 1A (I
SW
), 1.2MHz/2.2MHz High Efficiency Step-Up DC/DC
Converter
V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V, I
Q
= 4.2mA/5.5mA, I
SD
< 1µA,
ThinSOT Package
LT1935 2A (I
SW
), 40V, 1.2MHz High Efficiency Step-Up DC/DC Converter V
IN
: 2.3V to 16V, V
OUT(MAX)
= 38V, I
Q
= 3mA, I
SD
< 1µA,
ThinSOT Package
LT1944/
LT1944-1 Dual Output 350mA (I
SW
), Constant Off-Time, High Efficiency
Step-Up DC/DC Converter
V
IN
: 1.2V to 15V, V
OUT(MAX)
= 34V, I
Q
= 20µA, I
SD
< 1µA,
MS10 Package
LT1946/
LT1946A 1.5A (I
SW
), 1.2MHz/2.7MHz High Efficiency Step-Up DC/DC
Converter
V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V, I
Q
= 3.2mA, I
SD
< 1µA,
MS8E Package
LT3467 1.1A (I
SW
), 1.3MHz High Efficiency Step-Up DC/DC Converter V
IN
: 2.4V to 16V, V
OUT(MAX)
= 40V, I
Q
= 1.2mA, I
SD
< 1µA,
ThinSOT, 2mm × 3mm DFN Packages
LT3477 42V, 3A, 3.5MHz Boost, Buck-Boost, Buck LED Driver V
IN
: 2.5V to 25V, V
OUT(MAX)
= 40V, Analog/PWM, I
SD
< 1µA,
QFN, TSSOP-20E Packages
LT3479 3A Full-Featured DC/DC Converter with Soft-Start and Inrush
Current Protection
V
IN
: 2.5V to 24V, V
OUT(MAX)
= 40V, I
Q
= 5mA, I
SD
< 1µA,
DFN, TSSOP Packages
LT3580 2A (I
SW
), 42V, 2.5MHz, High Efficiency Step-Up DC/DC
Converter
V
IN
: 2.5V to 32V, V
OUT(MAX)
= 42V, I
Q
= 1mA, I
SD
= <1µA,
3mm × 3mm DFN-8, MSOP-8E
LT3581 3.3A (I
SW
), 42V, 2.5MHz, High Efficiency Step-Up DC/DC
Converter
V
IN
: 2.5V to 22V, V
OUT(MAX)
= 42V, I
Q
= 1.9mA, I
SD
= <1µA,
4mm × 3mm DFN-14, MSOP-16E
LT3579 6A (I
SW
), 42V, 2.5MHz, High Efficiency, Step-Up DC/DC
Converter
V
IN
: 2.5V to 16V, V
OUT(MAX)
= 42V, I
Q
= 1.9mA, I
SD
= <1µA,
4mm × 5mm QFN-20, TSSOP-20
LT8582 Dual Channel, 3A (I
SW
), 42V, 2.5MHz, High Efficiency Step-Up
DC/DC Converter
V
IN
: 2.5V to 22V, V
OUT(MAX)
= 42V, I
Q
= 2.1mA, I
SD
= <1µA,
4mm × 7mm DFN-24
Efficiency and Power Loss
(V
IN
= 12V)
12V Battery Stabilizer Survives 40V Transients
C
OUT
4.7µF
V
OUT
12V
240mA
L1
22µH
L2
22µH
C1
1µF
D1
130k
V
IN
9V TO 16V
UP TO 40V
TRANSIENT
V
IN
SW
8580 TA07a
LT8580
487k
16.2k
84.5k
SHDN
GND
FBX
VCSYNC
SSRT
1nF
22pF
0.22µF
C
IN
4.7µF
•
•
L1, L2: WÜRTH 22µH WE-DD 744877220
D1: DIODES INC. DFLS1100
C
IN
: 4.7µF, 50V, 1206, X7R
C
OUT
: 4.7µF, 25V, 1206, X7R
C1: 1µF, 100V, 0805, X7S
LOAD CURRENT (mA)
0
10
EFFICIENCY (%)
POWER LOSS (mW)
30
20
40
50
160
90
8580 TA07b
120 20040 80 240
60
70
80
0
400
600
800
500
200
100
300
700
EFFICIENCY
POWER LOSS
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.
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