MAX1954AEUB Maxim Integrated Products, MAX1954AEUB Datasheet - Page 6

• Manufacturer Part Number: MAX1954AEUB
• Description: Current Mode PWM Controllers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1954AEUB

• Number Of Outputs: 1
• Duty Cycle (max): 93 %
• Output Voltage: 0.8 V to 4.95 V
• Output Current: 25000 mA
• Mounting Style: SMD/SMT
• Package / Case: uSOP-10
• Switching Frequency: 360 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Boost, Buck
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Low-Cost, Current-Mode PWM Buck
Controller with Foldback Current Limit
6
(T
A
_______________________________________________________________________________________
= +25°C, unless otherwise noted.)
AC-COUPLED
5A/ s
V
V
I
OUT
OUT
OUT
V
DH
I
LX
DL
I
LX
IN
IN
I
L
HEAVY-LOAD SWITCHING WAVEFORMS
SHORT CIRCUIT AND RECOVERY
LOAD TRANSIENT
I
LOAD
200 s/div
40 s/div
2 s/div
= 5A
MAX1954A toc09
MAX1954A toc11
MAX1954A toc07
Typical Operating Characteristics (continued)
1V/div
5A/div
2A/div
10V/div
5V/div
5V/div
2V/div
2A/div
100mV/div
5A
2.5A
V
V
OUT
OUT
DH
V
V
DH
LX
DL
I
DL
LX
I
IN
IN
L
POWER-UP/POWER-DOWN WAVEFORMS
STARTUP INTO PREBIASED OUTPUT
NO-LOAD SWITCHING WAVEFORMS
(OUTPUT PREBIASED AT ~1.7V)
2 s/div
4ms/div
2ms/div
MAX1954A toc08
MAX1954A toc10
MAX1954A toc12
2A/div
10V/div
5V/div
5V/div
1V/div
5V/div
5V/div
5V/div
2V/div
5A/div
5V/div