LM2831ZMF/NOPB National Semiconductor, LM2831ZMF/NOPB Datasheet - Page 20

• Manufacturer Part Number: LM2831ZMF/NOPB
• Description: IC REGULATOR BUCK 1.5A SOT23-5
• Manufacturer: National Semiconductor
• Type: Step-Down (Buck)r

Specifications of LM2831ZMF/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: 3MHz
• 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: LM2831ZMF EVAL - BOARD EVAL LM2831ZMF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: LM2831ZMF; LM2831ZMFTR

www.national.com
LM2831Y Design Example 4
D1, Catch Diode
C2, Output Cap
C1, Input Cap
Part ID
U1
R1
R2
L1
FIGURE 9. LM2831Y (550kHz): Vin = 5V, Vout = 3.3V
0.3V
1.5A Buck Regulator
2x22µF, 6.3V, X5R
f
22µF, 6.3V, X5R
Schottky 1.5A, 30V
10.0kΩ, 1%
10.0kΩ, 1%
4.7µH 2.1A
Part Value
Bill of Materials
R
20
Manufacturer
TOSHIBA
Vishay
Vishay
NSC
TDK
TDK
TDK
@
1.5A
SLF7045T-4R7M2R0-PF
C3216X5ROJ226M
C3216X5ROJ226M
CRCW08051002F
CRCW08051002F
Part Number
LM2831Y
CRS08
20174808