MAX1954AEUB-T Maxim Integrated Products, MAX1954AEUB-T Datasheet - Page 5

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

Specifications of MAX1954AEUB-T

• 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

(T
A
100
0.81
0.81
0.80
0.80
0.79
= +25°C, unless otherwise noted.)
90
80
70
60
50
40
10.8
0.1
V
OUT
= 2.5V
11.4
vs. INPUT VOLTAGE
vs. LOAD CURRENT
OUTPUT VOLTAGE
INPUT VOLTAGE (V)
LOAD CURRENT (A)
V
EFFICIENCY
OUT
_______________________________________________________________________________________
= 1.5V
12.0
1
Controller with Foldback Current Limit
V
IN
V
I
OUT
12.6
= V
IN
= V
HSD
= 5A
Low-Cost, Current-Mode PWM Buck
HSD
= 5V
13.2
10
2.60
2.55
2.50
2.45
2.40
350
330
310
290
270
250
3.0
0
OSCILLATOR FREQUENCY
3.5
1
T
vs. LOAD CURRENT
vs. INPUT VOLTAGE
A
OUTPUT VOLTAGE
= -40 C
LOAD CURRENT (A)
INPUT VOLTAGE (V)
T
4.0
2
A
= +85 C
Typical Operating Characteristics
4.5
3
V
IN
= V
T
A
V
= +25 C
HSD
IN
5.0
4
= V
= 5V
HSD
5.5
5
AC-COUPLED
-10
-30
-50
-70
5A/ s
70
50
30
10
V
I
OUT
OUT
3.0
OUTPUT VOLTAGE CHANGE
3.5
vs. INPUT VOLTAGE
INPUT VOLTAGE (V)
LOAD TRANSIENT
4.0
40 s/div
V
OUT
4.5
= 2.5V
V
V
I
OUT
OUT
IN
5.0
= V
= 0.8V
= 5A
MAX1954A toc06
HSD
5.5
5
100mV/div
5A
500mA