MAX1637EEE Maxim Integrated Products, MAX1637EEE Datasheet - Page 5

• Manufacturer Part Number: MAX1637EEE
• Description: IC CTRLR MINI LV STPDWN 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1637EEE

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.1 ~ 5.5 V
• Current - Output: 3A
• Frequency - Switching: Adj to 350kHz
• Voltage - Input: 3.15 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 667mW
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

(V
____________________________________Typical Operating Characteristics (continued)
OUT
-10
10
-2
-4
-6
-8
8
6
4
2
0
= 3.3V, T
0.01
SWITCHING WAVEFORMS
(PWM MODE)
A
1μs/div
vs. LOAD CURRENT
LOAD REGULATION
= +25°C, unless otherwise noted.)
0.1
LOAD CURRENT (A)
_______________________________________________________________________________________
LOAD-TRANSIENT RESPONSE
(3.3V/3A, PWM MODE)
MAX1637-13
1
100μs/div
V
20mV/div
5V
0V
1A
0A
OUT
V
INDUCTOR
CURRENT
LX
10
MAX1637 TOC11
Precision Step-Down Controller
0.6
0.5
0.4
0.3
0.2
0.1
0
0
V
50mV/div
4A
2A
0A
SWITCHING WAVEFORMS
OUT
LOAD
CURRENT
10 20
REF LOAD-REGULATION ERROR
(PFM MODE)
vs. REF LOAD CURRENT
REF LOAD CURRENT (μA)
20μs/div
30
40
Miniature, Low-Voltage,
50 60 70 80 90 100
V
OUT
= 1.7V
MAX1637-14
5V
0V
1A
V
50mV/div
0A
OUT
V
INDUCTOR
CURRENT
LX
LOAD-TRANSIENT RESPONSE
800
700
600
400
300
200
100
900
500
(1.8V, PWM MODE)
0
SYNC = V
V
0.01
OUT
100μs/div
V
SYNC = V
FORCED TO 3.27V
SWITCHING WAVEFORMS
OUT
DROPOUT OPERATION
CC
FORCED TO 3.27V
CC
DROPOUT VOLTAGE
vs. LOAD CURRENT
0.1
LOAD CURRENT (A)
1μs/div
MAX1637 TOC12
1
10A
5A LOAD CURRENT
0A
V
50mV/div
MAX1637-15
OUT
V
10mV/div
1A
V
2V/div
0A
OUT
LX
10
5
INDUCTOR
CURRENT