MAX8855ETJ+ Maxim Integrated Products, MAX8855ETJ+ Datasheet - Page 5

• Manufacturer Part Number: MAX8855ETJ+
• Description: IC REG STP DWN DUAL 5A 32-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8855ETJ+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 3.24 V
• Current - Output: 5A
• Frequency - Switching: 500kHz ~ 2MHz
• Voltage - Input: 2.35 ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Power - Output: 2.76W
• Output Current: 5 A
• Input Voltage: 2.35 V to 3.6 V
• Supply Current: 2.8 mA
• Switching Frequency: 2 MHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
IN1
= V
IN2
= 3.3V. MAX8855, circuit of Figure 6, T
1100
1080
1060
1040
1020
1000
V
V
980
960
940
920
900
LX1
LX2
I
10
I
L2
L1
9
8
7
6
5
4
3
2
1
0
_______________________________________________________________________________________
2.35
-40
I
IN1
SHUTDOWN SUPPLY CURRENT
+ I
IN2
2.60
-15
SWITCHING WAVEFORMS
SWITCHING FREQUENCY
AMBIENT TEMPERATURE (°C)
vs. SUPPLY VOLTAGE
+ I
Dual, 5A, 2MHz Step-Down Regulator
vs. TEMPERATURE
VDL
SUPPLY VOLTAGE (V)
+ I
2.85
10
400ns/div
VDD
3.10
35
3.35
60
Typical Operating Characteristics (continued)
MAX8855 toc08
A
= +25°C, unless otherwise noted.)
3.60
85
2V/div
2A/div
2V/div
2A/div
V
PWRGD2
V
V
I
610
608
606
604
602
600
598
596
594
592
590
OUT_
OUT_
V
OUT2
I
EN2
IN2
-40
3A LOAD
1.5A
SOFT-START AND SHUTDOWN
-15
AMBIENT TEMPERATURE (°C)
FEEDBACK VOLTAGE
vs. TEMPERATURE
LOAD TRANSIENT
10
400µs/div
20µs/div
3.0A
35
1.8V OUTPUT
60
1.5A
MAX8855 toc09
MAX8855 toc07
85
5V/div
1V/div
2V/div
1A/div
100mV/div
1A/div
5