Datasheet

GND
FB
EN
V
IN
SW
V
IN
= 5V
C1
R3
D1
L1
LM2831
R2
R1
C2
V
O
= 3.3V @ 1.5A
LM2831
SNVS422C AUGUST 2006REVISED APRIL 2013
www.ti.com
LM2831X Design Example 3
Figure 30. LM2831X (1.6MHz): Vin = 5V, Vo = 3.3V @ 1.5A
Table 4. Bill of Materials
Part ID Part Value Manufacturer Part Number
U1 1.5A Buck Regulator TI LM2831X
C1, Input Cap 22µF, 6.3V, X5R TDK C3216X5ROJ226M
C2, Output Cap 2x22µF, 6.3V, X5R TDK C3216X5ROJ226M
D1, Catch Diode 0.3V
f
Schottky 1.5A, 30V
R
TOSHIBA CRS08
L1 2.7µH 2.3A TDK VLCF5020T-2R7N2R2-1
R2 10.0k, 1% Vishay CRCW08051002F
R1 45.3k, 1% Vishay CRCW08054532F
R3 100k, 1% Vishay CRCW08051003F
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