LM2744EVAL National Semiconductor, LM2744EVAL Datasheet - Page 20

• Manufacturer Part Number: LM2744EVAL
• Description: BOARD EVALUATION LM2744
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM2744EVAL

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V
• Current - Output: 3.5A
• Voltage - Input: 1.8 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2744
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

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Example Circuits
PART
U
Q
D
L
C
C
C
C
C
C
C
C
C
R
R
R
R
R
R
R
R
1
1
1
IN
O
BOOT,
O
CC
C3
SS
C2
C1
FB2
FB1
FADJ
C2
CS
CC
C1
PULL-UP
1
1
2
1
C
IN
2,
PART NUMBER
LM2744
FDS6898A
MBR0520LTI
DO3316P-472
16SP100M
6SP220M
VJ0805Y104KXXA
VJ0805M104MXQ
VJ0805Y332KXXA
VJ0805A123KXAA
VJ0805Y122KXXA
VJ0805A270KXAA
CRCW08051002F
CRCW08055761F
CRCW08051103F
CRCW08052101F
CRCW08057870F
CRCW080510R0F
CRCW08053832F
CRCW08051003J
FIGURE 15. 5V to 3.3V @ 2A, V
TYPE
Synchronous
Controller
Dual N-MOSFET
Schottky Diode
Inductor
Aluminum
Electrolytic
Aluminum
Electrolytic
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
20
PACKAGE
TSSOP-14
SO-8
SOD-123
12.95 x 9.4 x
5.21mm
10mm x 6mm
10mm x 6mm
0805
0805
0805
0805
0805
0805
0805
0805
0805
0805
0805
0805
0805
0805
REF
= 1.2V, F
SW
= 300kHz
DESCRIPTION
20V, 10mΩ@ 4.5V,
16nC
4.7µH, 4.8Arms
18mΩ
100µF, 16V,
2.89Arms
220µF, 6.3V 3.1Arms Sanyo
0.1µF, 10%
1µF, 20%
3300pF, 10%
12nF, 10%
1200pF 10%
27pF, 10%
10.0kΩ 1%
5.76kΩ1%
110kΩ 1%
2.1kΩ 1%
787Ω 1%
10.0Ω 1%
38.3kΩ 1%
100kΩ 5%
20106032
VENDOR
NSC
Fairchild
Coilcraft
Sanyo
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay