lm2854mhx-500 National Semiconductor Corporation, lm2854mhx-500 Datasheet - Page 9

• Manufacturer Part Number: lm2854mhx-500
• Description: 4a 500 Khz /1 Mhz Synchronous Simple Switcher Buck Requlator
• Manufacturer: National Semiconductor Corporation

V
R
R
IN
FB1
LM2854 500 kHz Power On Characteristic
FB1
= 5.0V, V
L
OUT
= 150 kΩ, R
= 150 kΩ, R
V
V
IN
L
IN
= 0.82 µH, C
OUT
= 5.0V, V
= 5.0V, V
LM2854 1 MHz Bode Plot
LM2854 1 MHz Bode Plot
OUT
= 0.82 µH, C
= 1.8V, I
COMP
COMP
OUT
OUT
OUT
= 1 kΩ, C
= 1 kΩ, C
= 1.8V, I
= 3.3V, I
OUT
= 100 µF ceramic
OUT
= 4A, C
= 100 µF
OUT
OUT
COMP
COMP
= 4A
= 4A
SS
= 100 pF,
= 68 pF,
= 220 pF
30052831
30052827
30052829
9
V
R
R
IN
FB1
FB1
= 5.0V, V
LM2854 500 kHz Power On via Enable
L
L
OUT
OUT
= 250 kΩ, R
= 250 kΩ, R
V
V
IN
IN
LM2854 500 kHz Bode Plot
= 1.5 µH, C
LM2854 500 kHz Bode Plot
= 1.5 µH, C
= 5.0V, V
= 5.0V, V
OUT
= 1.8V, I
COMP
COMP
OUT
OUT
OUT
OUT
= 1 kΩ, C
= 1 kΩ, C
= 1.8V, I
= 3.3V, I
OUT
= 100 µF ceramic
= 100 µF ceramic
= 4A, C
OUT
OUT
COMP
COMP
= 4A
= 4A
SS
= 47 pF,
= 33 pF,
= 220 pF
30052832
30052828
30052830
www.national.com