Datasheet

MAX1953/MAX1954/MAX1957
Low-Cost, High-Frequency, Current-Mode PWM
Buck Controller
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
MAX1953
FULL-LOAD SWITCHING WAVEFORMS
MAX1953 toc19
2µs/div
I
LX
LX
DL
DH
2A/div
5V/div
5V/div
5V/div
MAX1954/MAX1957
SHORT-CIRCUIT SWITCHING WAVEFORMS
MAX1953 toc23
4µs/div
I
LX
LX
DL
DH
5A/div
10V/div
5V/div
10V/div
MAX1954/MAX1957
FULL-LOAD SWITCHING WAVEFORMS
MAX1953 toc22
4µs/div
I
LX
LX
DL
DH
2A/div
10V/div
5V/div
10V/div
MAX1954/MAX1957
NO-LOAD SWITCHING WAVEFORMS
MAX1953 toc21
4µs/div
I
LX
LX
DL
DH
2A/div
10V/div
5V/div
10V/div
MAX1953
SHORT-CIRCUIT SWITCHING WAVEFORMS
MAX1953 toc20
2µs/div
I
LX
LX
DL
DH
5A/div
5V/div
5V/div
5V/div