MAX1637EEE Maxim Integrated Products, MAX1637EEE Datasheet - Page 4

• 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

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
Miniature, Low-Voltage,
Precision Step-Down Controller
Note 1: Guaranteed by design, not production tested.
Note 2: Specifications from -40°C to 0°C are guaranteed by design and not production tested.
(V
4
__________________________________________Typical Operating Characteristics
OVERVOLTAGE PROTECTION
INPUTS AND OUTPUTS
Overvoltage Trip Threshold
Output Undervoltage Lockout Threshold
Logic Input Voltage High
Logic Input Voltage Low
OUT
100
100
_______________________________________________________________________________________
90
80
70
60
90
80
70
60
50
50
= 3.3V, T
0.01
0.01
SKIP = LOW
SKIP = LOW
EFFICIENCY vs. LOAD CURRENT
EFFICIENCY vs. LOAD CURRENT
V
PARAMETER
BATT
V
A
BATT
(1.7V/7A CIRCUIT)
(3.3V/3A CIRCUIT)
= 30V
= +25°C, unless otherwise noted.)
V
0.1
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
BATT
= 15V
CC
V
BATT
= 15V
= V
= 7V
GG
V
V
1
1
BATT
BATT
= 5V, SYNC = V
= 5V
= 22V
10
10
FB, with respect to regulation point
% of nominal output
SHDN, SKIP, SYNC
SHDN, SKIP, SYNC
CC
100
15
90
80
70
60
50
40
30
20
10
20
10
5
, I
0
0
0.001
REF
3.0
I
V
LOAD
SKIP = LOW
OUT
= 0mA, T
EFFICIENCY vs. LOAD CURRENT
3.5
= 3.3V
= 1A
0.01
vs. SUPPLY VOLTAGE
CONDITIONS
(2.5V/3A CIRCUIT)
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
4.0
LOAD CURRENT (A)
SKIP = HIGH
A
SKIP = LOW
= -40°C to +85°C, unless otherwise noted.) (Note 2)
V
V
0.1
BATT
4.5
BATT
= 22V
= 7V
5.0
1
V
BATT
5.5
= 15V
6.0
10
100
20
15
10
90
80
70
60
50
5
0
0.01
MIN
0
4.0
2.4
60
SKIP = LOW
SKIP = LOW
EFFICIENCY vs. LOAD CURRENT
1
V
BATT
2
vs. LOAD CURRENT
SUPPLY CURRENT
TYP
(2.5V/2A CIRCUIT)
= 15V
V
LOAD CURRENT (A)
BATT
0.1
LOAD CURRENT (A)
3
= 7V
4
SYNC = HIGH
SYNC = LOW
5
MAX
V
0.8
BATT
10
80
6
1
= 22V
7
UNITS
8
%
%
V
V
10
9