lt3580ems8e-trpbf Linear Technology Corporation, lt3580ems8e-trpbf Datasheet - Page 25

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

TYPICAL APPLICATIONS
–5V Output Inverting Converter Switches at 2.5MHz and Accepts Inputs Between 3.3V to 12V
3.3V TO 12V
V
IN
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
C1
2.2μF
Effi ciency and Power Loss vs Load Current
85
75
70
65
60
50
80
55
45
40
35.7k
0
V
SHDN
RT
IN
V
SYNC
= 5V
100
IN
LT3580
4.7μH
200
L1
LOAD CURRENT (mA)
SS
SW
300
GND
VC
FB
0.1μF
1μF
C3
400
500
D1
10k
4.7μH
2.2nF
L2
100pF
60.2k
600
3580 TA07b
3580 TA08a
700
1200
1000
800
600
400
200
0
C2
10μF
V
–5V
800mA (V
620mA (V
450mA (V
OUT
IN
IN
IN
= 12V)
= 5V)
= 3.3V)
LT3580
25
3580fa