LM2831YMF/NOPB National Semiconductor, LM2831YMF/NOPB Datasheet - Page 24
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LM2831YMF/NOPB
Manufacturer Part Number
LM2831YMF/NOPB
Description
IC REGULATOR BUCK 1.5A SOT23-5
Manufacturer
National Semiconductor
Type
Step-Down (Buck)r
Datasheet
1.LM2831YMFNOPB.pdf
(27 pages)
Specifications of LM2831YMF/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
0.6 ~ 4.5 V
Current - Output
1.5A
Frequency - Switching
550kHz
Voltage - Input
3 ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
For Use With
LM2831YMF EVAL - BOARD EVAL LM2831YMF
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
LM2831YMF
LM2831YMFTR
LM2831YMFTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM2831YMF/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
www.national.com
LM2831X Dual Converters with Delayed Enabled Design Example 8
D1, D2 Catch Diode
C2, C4 Output Cap
C1, C3 Input Cap
R2, R4, R5
Part ID
U1, U2
R1, R6
L1, L2
U3
C7
R3
FIGURE 13. LM2831X (1.6MHz): Vin = 5V, Vo = 1.2V
0.3V
1.5A Buck Regulator
2x22µF, 6.3V, X5R
Trr delay capacitor
f
22µF, 6.3V, X5R
Power on Reset
Schottky 1.5A, 30V
3.3µH, 2.2A
10.0kΩ, 1%
45.3kΩ, 1%
Part Value
100kΩ, 1%
Bill of Materials
R
24
Manufacturer
TOSHIBA
Vishay
Vishay
Vishay
NSC
NSC
TDK
TDK
TDK
TDK
@
1.5A & 3.3V
20174862
@
1.5A
VLCF5020T-3R3N2R0-1
C3216X5ROJ226M
C3216X5ROJ226M
CRCW08051002F
CRCW08054532F
CRCW08051003F
LP3470M5X-3.08
Part Number
LM2831X
CRS08