LM2744EVAL National Semiconductor, LM2744EVAL Datasheet - Page 6

• 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: -

BOOT Pin Current vs Temperature for
BOOT Pin Current vs Temperature for
BOOT Voltage = 5V
BOOT Voltage = 12V
F
= 300kHz, FDS6898A FET, No-Load
F
= 300kHz, FDS6898A FET, No-Load
SW
SW
20106042
20106044
Frequency vs Temperature
Output Voltage vs Output Current
(F
set to 600kHz nominal)
(V
set to 1.2V nominal)
SW
OUT
20106060
20106056
Switch Waveforms (HG Rising)
Switch Waveforms (HG Falling)
V
= 3.3V, V
= 5V, V
= 0.6V, V
= 1.2V
V
= 3.3V, V
= 5V, V
= 0.6V, V
= 1.2V,
CC
IN
REF
OUT
CC
IN
REF
OUT
I
= 4A, C
= 12nF, F
= 300kHz
I
= 4A, C
= 12nF, F
= 300kHz
OUT
SS
SW
OUT
SS
SW
20106047
20106046
www.national.com
6