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LM2830XMFX Datasheet(PDF) 22 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM2830XMFX
Description  High Frequency 1.0A Load - Step-Down DC-DC Regulator
PDF  24 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2830XMFX Datasheet(HTML) 22 Page - National Semiconductor (TI)

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LM2830X Buck Converter & Voltage Double Circuit with LDO Follower
Design Example 7
Bill of Materials
Part ID
Part Value
Manufacturer
Part Number
U1
1.0A Buck Regulator
NSC
LM2830X
U2
200mA LDO
NSC
LP2986-5.0
C1, Input Cap
22µF, 6.3V, X5R
TDK
C3216X5ROJ226M
C2, Output Cap
22µF, 6.3V, X5R
TDK
C3216X5ROJ226M
C3 – C6
2.2µF, 6.3V, X5R
TDK
C1608X5R0J225M
D1, Catch Diode
0.3V
f Schottky 1.5A, 30VR
TOSHIBA
CRS08
D2
0.4V
f Schottky 20VR, 500mA
ON Semi
MBR0520
L2
10µH, 800mA
CoilCraft
ME3220-103
L1
3.3µH, 2.2A
TDK
VLCF5020T-3R3N2R0-1
R2
45.3k
Ω, 1%
Vishay
CRCW08054532F
R1
10.0k
Ω, 1%
Vishay
CRCW08051002F
20197463
FIGURE 12. LM2830X (1.6MHz): Vin = 5V, Vo = 3.3V @ 1.0A & LP2986-5.0 @ 150mA
www.national.com
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