LM20146MHEVAL National Semiconductor, LM20146MHEVAL Datasheet - Page 19

• Manufacturer Part Number: LM20146MHEVAL
• Description: BOARD EVALUATION FOR LM20146MH
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM20146MHEVAL

• Design Resources: LM20146 Design Spreadsheet
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V
• Current - Output: 6A
• Voltage - Input: 2.95 ~ 5.5V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: LM20146
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Frequency - Switching: -

Typical Application Circuits
This section provides several application solutions with a bill
of materials. All bill of materials reference the below figure.
The compensation for these solutions were optimized to work
Bill of Materials (V
Designator
C
C
R
R
R
C
C
C
U1
R
C
R
OUT
VCC
L
FB1
FB2
SS
C1
C1
IN
F
F
T
Synchronous Buck Regulator
100µF, 1210, X5R, 6.3V
100µF, 1210, X5R, 6.3V
100nF, 0603, X7R, 16V
33nF, 0603, X7R, 25V
1nF, 0603, COG, 50V
1µF, 0603, X5R, 6.3V
14.3 kΩ, 0603
31.6kΩ, 0603
10.2kΩ, 0603
1µH, 7.8 mΩ
100kΩ, 0603
Description
1Ω, 0603
IN
= 5V, V
OUT
= 3.3V, F
GRM188R71C104KA01
GRM188R60J105KA01
GRM1885C1H102JA01
SPM6530T-1R0M120
CRCW06031432F-e3
CRCW06031003F-e3
CRCW06033162F-e3
CRCW06031022F-e3
CRCW06031R0J-e3
C3225X5R0J107M
C3225X5R0J107M
VJ0603Y333KXXA
FIGURE 12.
Part Number
LM20146
19
SW
over a wide range of input and output voltages; if a faster
transient response is needed reduce the value of C
calculate the new value for R
guide.
= 500kHz, I
National Semiconductor
OUTMAX
Vishay-Vitramon
Manufacturer
Vishay-Dale
Vishay-Dale
Vishay-Dale
Vishay-Dale
Vishay-Dale
Murata
Murata
Murata
TDK
TDK
TDK
C1
30053860
as outlined in the design
= 6A)
www.national.com
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
C1
and