MAX1623 Maxim, MAX1623 Datasheet - Page 5

• Manufacturer Part Number: MAX1623
• Description: 3A / Low-Voltage / Step-Down Regulator with Synchronous Rectification and Internal Switches
• Manufacturer: Maxim

AC-COUPLED
f = 300kHz
(Circuit of Figure 2, T
____________________________ Typical Operating Characteristics (continued)
Synchronous Rectification and Internal Switches
0 to 2A
50mV
V
I
LOAD
OUT
C
A
B
V
WAVEFORM AVERAGED
A: V
B: I
C: V
IN
START-UP AND SHUTDOWN TRANSIENT
IN
= 5V, V
OUT
SHDN
, 1A/div
, 2V/div
LOAD-TRANSIENT RESPONSE
, 5V/div
OUT
3A, Low-Voltage, Step-Down Regulator with
= 3.3V, I
(FBSEL = REF)
_______________________________________________________________________________________
A
20 s/div
1ms/div
LOAD
= +25°C, unless otherwise noted.)
= 3A,
AC-COUPLED
AC-COUPLED
V
I
(20mV/div)
V
OUT
OUT
IN
(1V/div)
to 5.5V
= 4.5V
= 3.3V
= 1.5A
C
A
B
V
WAVEFORM AVERAGED
A: V
B: I
C: V
START-UP AND SHUTDOWN TRANSIENT
IN
IN
= 5V, V
OUT
SHDN
, 1A/div
, 2V/div
, 5V/div
LINE-TRANSIENT RESPONSE
OUT
= 3.3V, I
1ms/div
20 s/div
LOAD
= 2A,
AC-COUPLED
AC-COUPLED
AC-COUPLED
I
OUT
V
(20mV/div)
OUT
f = 300kHz
V
IN
= 100mA
(1V/div)
to 5.5V
0 to 3A
= 4.5V
= 3.3V
50mV
V
I
LOAD
OUT
LOAD-TRANSIENT RESPONSE
LINE-TRANSIENT RESPONSE
(FBSEL = REF)
20 s/div
20 s/div
5