MAX8554EEE+ Maxim Integrated Products, MAX8554EEE+ Datasheet - Page 9

• 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

(V
4.5V to 28V Input, Synchronous PWM Buck Controllers
V+
= 12V, V
for DDR Termination and Point-of-Load Applications
V
V
I
OUT
OUT
I
OUT
OUT
OUT
VTT CONNECTED AS SHOWN IN FIGURE 2
LOAD TRANSIENT -8A TO +8A TO -8A
LOAD TRANSIENT 0A TO 20A TO 0A
= 1.8V, circuit of Figure 1, T
_______________________________________________________________________________________
(CIRCUIT OF FIGURE 1)
(CIRCUIT OF FIGURE 2)
40µs/div
40µs/div
MAX8553/4 toc10
MAX8553/4 toc12
A
= +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
10A/div
100mV/div
AC-COUPLED
20mV/div
AC-COUPLED
0
5A/div
V
V
V
OUT
I
OUT
OUT
LX
I
L
SWITCHING WAVEFORMS WITH 20A LOAD
VTT CONNECTED TO THE OUTPUT
LOAD TRANSIENT -8A TO +8A TO -8A
(CIRCUIT OF FIGURE 1)
(CIRCUIT OF FIGURE 2)
40µs/div
2µs/div
MAX8553/4 toc11
MAX8553/4 toc13
20mV/div
AC-COUPLED
0
5A/div
5V/div
0
20mV/div
AC-COUPLED
10A/div
9