LM2651-3.3EVAL National Semiconductor, LM2651-3.3EVAL Datasheet - Page 2

• Manufacturer Part Number: LM2651-3.3EVAL
• Description: EVALUATION BOARD FOR LM2651-3.3
• Manufacturer: National Semiconductor

Specifications of LM2651-3.3EVAL

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V
• Current - Output: 1.5A
• Voltage - Input: 4 ~ 14V
• Regulator Topology: Buck
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2651
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2651-3.3EVAL

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Operating the Evaluation Board
SETUP
The LM2651_3.3V_EVAL evaluation board comes ready to
be tested. The only setup needed is connecting the input volt-
age to the V
connected to the V
Ref Designator
COUT
CIN2
CSS
CC2
CC1
CIN
CB
RC
U1
R1
R2
D1
IN
L1
and GND posts. The load and output are
OUT
Layout Top Layer
post.
Tant Cap 120 µF 6.3V 10% Size = D
Cer Cap 4.7 nF 50V X7R 10% 1206
Cer Cap 2.2 nF 50V X7R 10% 1206
Cer Cap 0.1 µF 50V X7R 10% 0805
Cer Cap 0.1 µF 50V X7R 10% 0805
Tan Cap 100 µF 16V 10% Size = D
Res 0.1Ω ⅛W 5% LR series 0805
Cer Cap 100 pF 50V NPO 1206
Res 30.0 kΩ ⅛W 5% 0805
Schottky Diode 1A SMA
IC LM2651MTC-3.3
Part Description
10122807
TABLE 1. Bill of Materials
Inductor
Open
Layout Silkscreen
2
OPERATING CONDITIONS
The input voltage to the LM2651-3.3 regulator must be within
the range of 4V to 14V DC for proper operation. The device
will not function properly with voltages below 4V and damage
may occur if any voltage greater than 16V is applied.
10122809
Layout Bottom Layer
Vishay CRCW0805R100JTGLR
Vishay VJ1206Y472KXAMB
Vishay VJ1206Y222KXAMB
Vishay VJ0805Y104KXAMB
Vishay VJ0805Y104KXAMB
Vishay VJ1206A101JXAMB
Vishay 594D127X06R3C2T
Vishay 594D107X0016D2T
Vishay CRCW0805303J
Motorola MBRA130LT3
Coilcraft DO3316P-223
LM2651MTC-3.3
Part Number
10122808