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MP28367 数据表(PDF) 8 Page - Monolithic Power Systems

部件名 MP28367
功能描述  1A, 21V, 1.4MHz Step-Down Converter in a TSOT23-6
PDF  9 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP28367 数据表(HTML) 8 Page - Monolithic Power Systems

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MP28367 – 1A, 21V, 1.4MHz STEP-DOWN CONVERTER IN A TSOT23-6
MP28367 Rev. 0.9
www.MonolithicPower.com
8
12/13/2007
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
TM
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
744062005
4.7
0.060
2.2
5.9 x 6.2 x 3.3
TYPICAL APPLICATION CIRCUITS
VIN
Note:
VOUT should be less than 5V if D2 is populated.
VOUT
3.3V
C3
22nF
D1
B230A-13-F
U1
D2
1N4148
(Optional)
D3
1N4148
(Optional)
C6
NS
MP28367
FB
SW
BS
GND
EN
IN
1
5
4
6
3
OFF ON
Figure 3—1.4MHz, 3.3V Output at 1A Step-Down Converter
MP28367
SW
FB
BST
GND
IN
EN
1
6
3
2
4
5
C3
10nF
LED1
LED2
LED3
D1
1N5819HW-7
VIN
6V-12V
OFF ON
-VOUT
-VOUT
-VOUT
-VOUT
Figure 4—White LED Driver Application



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