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LM2731XMF/NOPB 데이터시트(PDF) 2 Page - Texas Instruments

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부품명 LM2731XMF/NOPB
상세설명  LM2731 0.6/1.6 MHz Boost Converters With 22V Internal FET Switch in SOT-23
PDF  16 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM2731XMF/NOPB 데이터시트(HTML) 2 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
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)
Efficiency vs Load Current
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
Efficiency vs Load Current
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)
TI Confidential - NDA Restrictions
LM2731
SNVS217F – MAY 2004 – REVISED NOVEMBER 2012
www.ti.com
Figure 1. White LED Flash Application
Connection Diagram
Top View
Figure 2. 5-Lead SOT-23 Package
See Package Number DBV0005A
2
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Copyright © 2004–2012, Texas Instruments Incorporated
Product Folder Links: LM2731



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