MAX8554EEE+ Maxim Integrated Products, MAX8554EEE+ Datasheet - Page 10

• Manufacturer Part Number: MAX8554EEE+
• Description: IC CNTRLR BUCK PWM 16-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX8554EEE+

• Pwm Type: Controller
• Number Of Outputs: 1
• Frequency - Max: 550kHz
• Duty Cycle: 95%
• Voltage - Supply: 4.5 V ~ 28 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: Yes
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-QSOP
• Frequency-max: 550kHz
• Output Voltage: 0.6 V to 3.5 V
• Output Current: 25000 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 550 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Buck
• Dc: 0649
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.5V to 28V Input, Synchronous PWM Buck Controllers
for DDR Termination and Point-of-Load Applications
(V
10
V+
= 12V, V
______________________________________________________________________________________
V
V
V
V
V
POK
OUT
POK
OUT
V
EN
I
IN
OUT
IN
I
L
STARTUP/SHUTDOWN WAVEFORMS WITH
POWER-UP WAVEFORMS WITH 20A LOAD
= 1.8V, circuit of
20A LOAD (CIRCUIT OF FIGURE 1)
(CIRCUIT OF FIGURE 1)
2ms/div
2ms/div
Figure
MAX8553/4 toc16
1, T
MAX8553/4 toc14
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
5V/div
1V/div
5V/div
2A/div
0
10V/div
1V/div
5V/div
10A/div
0
V
V
V
V
OUT
POK
V
OUT
0A
0V
LX
IN
I
POWER-DOWN WAVEFORMS WITH 20A LOAD
I
L
L
SHORT CIRCUIT AND RECOVERY
(CIRCUIT OF FIGURE 1)
(CIRCUIT OF FIGURE 1)
200µs/div
1ms/div
MAX8553/4 toc15
MAX8553/4 toc17
10V/div
1V/div
5V/div
10A/div
0
20V/div
5A/div
1V/div