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LM2731XMF/NOPB Datasheet(PDF) 19 Page - Texas Instruments

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Part # LM2731XMF/NOPB
Description   0.6/1.6-MHz Boost Converters With 22-V Internal FET Switch in SOT-23
PDF  29 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM2731XMF/NOPB Datasheet(HTML) 19 Page - Texas Instruments

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LM2731"Y"
L1 / 1.5 PH
R3
51K
C1
4.7PF
C2
4.7PF
R2
120
D1
MBR0520
WHITE
LED's
VIN
SW
FB
GND
SHDN
B1
LI-ION
3.3 - 4.2V
FLASH
ENABLE
0
LOAD (mA)
0
50
100
150
200
250
0
10
20
30
40
50
60
70
80
90
100
300
3.3 -9V
^y_ s Υ]}v
LM2731
³;´
SW
FB
GND
VIN
SHDN
U1
R3
51K
SHDN
GND
3.3 VIN
C1
2.2PF
R2
13.3K
CF
330pF
D1
MBR0520
R1/84K
L1/10PH
C2
4.7PF
D2
D3
D4
D5
R4
R5
9V OUT
240mA (typ)
LOAD (mA)
0
10
20
30
40
50
60
70
80
90
100
0
50
100
150
200
250
3.3 -12V
Boost
^z_ s Υ]}v
LM2731
³<´
SW
FB
GND
VIN
SHDN
U1
R3
51K
SHDN
GND
3.3 VIN
C1
2.2PF
R2
13.3K
CF
270pF
D1
MBR0520
R1/117K
L1/6.8PH
C2
10PF
12V
OUT
230mA
(TYP)
LM2731
www.ti.com
SNVS217G – MAY 2004 – REVISED SEPTEMBER 2015
Figure 37. Efficiency vs Load Current
Figure 36. VIN = 3.3 V, VOUT = 12 V at 230 mA
Figure 39. Efficiency vs Load Current
Figure 38. VIN = 3.3 V, VOUT = 9 V at 240 mA
Figure 40. White LED Flash Application
Copyright © 2004–2015, Texas Instruments Incorporated
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Product Folder Links: LM2731



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