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MP2370 Fiches technique(PDF) 7 Page - Monolithic Power Systems

No de pièce MP2370
Description  1.2A, 24V, 1.4MHz Step-Down White LED Driver in a TSOT23-6
PDF  8 Pages
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Fabricant  MPS [Monolithic Power Systems]
Site Internet  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2370 Fiches technique(HTML) 7 Page - Monolithic Power Systems

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MP2370 – 1.2A, 24V, 1.4MHz STEP-DOWN WHITE LED DRIVER IN A TSOT23-6
MP2370 Rev. 0.96
www.MonolithicPower.com
7
9/21/2007
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
Table 2—Suggested Surface Mount Inductors
Manufacturer
Part Number
Inductance(µH)
Max DCR(Ω)
Current
Rating (A)
Dimensions
L x W x H (mm3)
Toko
A921CY-4R7M
4.7
0.027
1.66
6 x 6.3 x 3
Sumida
CDRH4D28C/LD
4.7
0.036
1.5
5.1 x 5.1 x 3
Wurth Electronics
7440530047
4.7
0.038
2.0
5.8 x 5.8 x 2.8
TYPICAL APPLICATION CIRCUITS
MP2370
IN
EN
GND
FB
SW
BS
L1
0.75A
VIN
1
6
3
2
4
5
Figure 2—White LED Driver without Output Capacitor
MP2370
SW
FB
BST
GND
IN
EN
1
6
3
2
4
5
U1
VIN
6V-23V
OFF ON
L1
1A
Figure 3—White LED Driver with Over-Voltage Clamp Output
MP2370
SW
FB
BST
GND
IN
EN
1
6
3
2
4
5
CB
10nF
C1
4.7uF
25V
C2
2.2uF
25V
LED1
LED2
LED3
D1
B130A
VIN
16V-23V
OFF ON
L1
4.7uH/1.5A
Figure 4—Driving 3 White LEDs in Series from 16V- 23V Input Voltage



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