Datasheet

Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
MAX1953/MAX1954/MAX1957
Low-Cost, High-Frequency, Current-Mode PWM
Buck Controller
6 _______________________________________________________________________________________
MAX1953
NO-LOAD SWITCHING WAVEFORMS
MAX1953 toc18
2µs/div
I
LX
LX
DL
DH
2A/div
5V/div
5V/div
5V/div
MAX1957
LOAD TRANSIENT
MAX1953 toc17
V
OUT
AC-COUPLED
I
LOAD
50mV/div
3A
-3A
400µs/div
MAX1953
LOAD TRANSIENT
CIRCUIT OF FIGURE 1
400
µ
s/div
100mV/div
3A
1.5A
V
OUT
AC-COUPLED
I
LOAD
MAX1953 toc15
MAX1954
LOAD TRANSIENT
MAX1953 toc16
100mV/div
2.5A
5A
I
LOAD
V
OUT
AC-COUPLED
400µs/div