lt3580ems8e-trpbf Linear Technology Corporation, lt3580ems8e-trpbf Datasheet - Page 28

• Manufacturer Part Number: lt3580ems8e-trpbf
• Description: Boost/inverting Dc/dc Converter With 2a Switch, Soft-start, And Synchronization
• Manufacturer: Linear Technology Corporation

RELATED PARTS
LT3580
TYPICAL APPLICATION
5V TO 12V
PART NUMBER
LT1310
LT1613
LT1618
LT1930/LT1930A
LT1931/LT1931A
LT1935
LT1944/LT1944-1
(Dual)
LT1945 (Dual)
LT1946/LT1946A
LT1961
LT3436
LT3467
LT3477
LT3479
ThinSOT is a trademark of Linear Technology Corporation.
28
V
IN
2MHz Inverting Converter Generates –12V from a 5V to 12V Input
C1: 2.2μF , 25V, X5R, 1206
C2: 10μF , 25V, X5R, 1206
C3: 1μF , 50V, X5R, 0805
D1: CENTRAL SEMI CMMSH1-40
L1: SUMIDA CDRH6D28NP-100NC
L2: SUMIDA CDRH3D28NP-220NC
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
C1
2.2μF
DESCRIPTION
2A (I
550mA (I
1.5A (I
1A (I
Converter
1A (I
Converter
2A (I
Dual Output 350mA (I
Step-Up DC/DC Converter
Dual Output Pos/Neg 350mA (I
High Effi ciency Step-Up DC/DC Converter
1.5A (I
Converter
1.5A (I
3A (I
1.1A (I
42V, 3A, 3.5MHz Boost, Buck-Boost, Buck LED Driver
3A Full-Featured DC/DC Converter with Soft-Start and Inrush
Current Protection
45.3k
SHDN
RT
SW
SW
SW
SW
SW
●
V
SYNC
SW
SW
SW
SW
IN
FAX: [phone]
), 40V, 1.2MHz High Effi ciency Step-Up DC/DC Converter
), 1.2MHz/2.2MHz High Effi ciency Step-Up DC/DC
), 1.2MHz/2.2MHz High Effi ciency Inverting DC/DC
), 40V, 1.2MHz High Effi ciency Step-Up DC/DC Converter
), 800kHz, 34V Step-Up DC/DC Converter
SW
), 1.25MHz High Effi ciency Step-Up DC/DC Converter
), 1.2MHz/2.7MHz High Effi ciency Step-Up DC/DC
), 1.25MHz High Effi ciency Step-Up DC/DC Converter
), 1.3MHz High Effi ciency Step-Up DC/DC Converter
LT3580
10μH
), 1.4MHz High Effi ciency Step-Up DC/DC Converter
L1
SS
SW
GND
VC
FB
0.1μF
1μF
SW
C3
), Constant Off-Time, High Effi ciency
●
D1
www.linear.com
22μH
10k
SW
L2
147k
2.2nF
), Constant Off-Time,
3580 TA08a
47pF
C2
10μF
V
–12V
500mA (V
350mA (V
OUT
IN
IN
= 12V)
= 5V)
COMMENTS
V
ThinSOT
V
ThinSOT Package
V
MS10 Package
V
ThinSOT Package
V
ThinSOT Package
V
ThinSOT Package
V
MS10 Package
V
MS10 Package
V
MS8E Package
V
MS8E Package
V
TSSOP16E Package
V
ThinSOT, 2mm × 3mm DFN Packages
V
QFN, TSSOP20E Packages
V
DFN, TSSOP Packages
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
: 2.3V to 16V, V
: 0.9V to 10V, V
: 1.6V to 18V, V
: 2.6V to 16V, V
: 2.6V to 16V, V
: 2.3V to 16V, V
: 1.2V to 15V, V
: 1.2V to 15V, V
: 2.6V to 16V, V
: 3V to 25V, V
: 3V to 25V, V
: 2.6V to 16V, V
: 2.5V to 25V, V
: 2.5V to 24V, V
TM
Package
Effi ciency and Power Loss vs Load Current
90
85
80
75
70
65
60
55
50
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
0
V
IN
50
= 5V
= 35V, I
= 34V, I
100
= 40V, I
= 34V, I
= 35V, I
= 34V, I
= 34V, I
= 40V, I
= 34V, I
= ±34V, I
= 34V, I
= 40V, I
= 40V, Analog/PWM, I
= 40V, Analog/PWM, I
© LINEAR TECHNOLOGY CORPORATION 2007
LOAD CURRENT (mA)
150
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
= 0.9mA, I
= 0.9mA, I
Q
Q
= 3mA, I
= 3mA, I
= 1.8mA, I
= 4.2mA/5.5mA, I
= 4.2mA/5.5mA, I
= 3mA, I
= 20μA, I
= 3.2mA, I
= 1.2mA, I
200
= 20μA, I
LT 1007 REV A • PRINTED IN USA
250
SD
SD
SD
SD
SD
SD
300
SD
SD
SD
SD
< 1μA,
< 1μA,
< 1μA,
< 6μA,
< 6μA,
< 1μA,
SD
SD
< 1μA,
< 1μA,
< 1μA,
< 1μA,
350
< 1μA,
< 1μA,
3580 TA09b
SD
SD
400
< 1μA,
< 1μA,
1400
1200
1000
800
600
400
200
0
3580fa