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LM2831XMF/NOPB Datasheet(PDF) 24 Page - Texas Instruments

Part # LM2831XMF/NOPB
Description  LM2831 High-Frequency 1.5-A Load — Step-Down DC-DC Regulator
PDF  39 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM2831XMF/NOPB Datasheet(HTML) 24 Page - Texas Instruments

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LDO
C5
U2
D2
L2
R1
R2
EN
FB
SW
VINA
VIND
GND
VO = 3.3V @ 1.5A
VO = 5.0V @ 150mA
C4
C6
C2
C3
D1
L1
U1
C1
LM2831
VIN = 5V
LM2831
SNVS422D – AUGUST 2006 – REVISED SEPTEMBER 2015
www.ti.com
8.2.9 LM2831X Buck Converter and Voltage Double Circuit With LDO Follower Design Example 9
Figure 31. LM2831X (1.6 MHz): VIN = 5 V, VO = 3.3 V at 1.5 A and LP2986-5.0 at 150 mA
Table 9. Bill of Materials
PART ID
PART VALUE
MANUFACTURER
PART NUMBER
U1
1.5-A Buck Regulator
TI
LM2831X
U2
200-mA LDO
TI
LP2986-5.0
C1, Input Cap
22 µF, 6.3 V, X5R
TDK
C3216X5ROJ226M
C2, Output Cap
22 µF, 6.3 V, X5R
TDK
C3216X5ROJ226M
C3 – C6
2.2 µF, 6.3 V, X5R
TDK
C1608X5R0J225M
D1, Catch Diode
0.3 Vf Schottky 1.5 A, 30 VR
TOSHIBA
CRS08
D2
0.4 Vf Schottky 20 VR, 500 mA
ON Semi
MBR0520
L2
10 µH, 800 mA
CoilCraft
ME3220-103
L1
3.3 µH, 2.2 A
TDK
VLCF5020T-3R3N2R0-1
R2
45.3 k
Ω, 1%
Vishay
CRCW08054532F
R1
10.0 k
Ω, 1%
Vishay
CRCW08051002F
24
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Product Folder Links: LM2831



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