MAX1831EEE+T Maxim Integrated Products, MAX1831EEE+T Datasheet - Page 3

• Manufacturer Part Number: MAX1831EEE+T
• Description: IC REG STEP DOWN 3A 16-QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1831EEE+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.5V, 2.5V, 3.3V, Adj
• Current - Output: 3A
• Frequency - Switching: 1MHz
• Voltage - Input: 3 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Power - Output: 1.12W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
ELECTRICAL CHARACTERISTICS
(V
3A, 1MHz, Low-Voltage, Step-Down Regulators with
Shutdown Supply Current
Thermal Shutdown Threshold
Undervoltage Lockout Threshold
FB Input Bias Current
Off-Time
Startup Off-Time
Minimum On-Time
Soft-Start Time (Note 3)
SHDN Input Current
SHDN Logic Input Low Voltage
SHDN Logic Input High Voltage
FBSEL Input Current
FBSEL Logic Thresholds
Input Voltage
Preset Output Voltage
IN
IN
= V
= V
Synchronous Rectification and Internal Switches
CC
CC
PARAMETER
PARAMETER
= +3.3V, FBSEL = GND, T
= +3.3V, FBSEL = GND, T
_______________________________________________________________________________________
SYMBOL
SYMBOL
V
A
A
T
V
I
IN
V
SHDN
t
SHDN
= 0°C to +85°C, unless otherwise noted. Typical values are at T
UVLO
= -40°C to +85°C, unless otherwise noted.) (Note 5)
t
V
I
OFF
V
ON
OUT
FB
, V
IH
IL
CC
SHDN = GND, into V
or 3.3V
SHDN = GND, into IN with LX = 0
SHDN = GND, into IN with LX = 3.3V
Hysteresis = 15°C
V
V
R
R
R
(Note 2)
SHDN = 0 or V
FBSEL = GND
FBSEL = REF
FBSEL = unconnected
FBSEL = V
V
I
V
V
I
V
LOAD
LOAD
IN
FB
TOFF
TOFF
TOFF
IN
FB
IN
FB
= +3V to +5.5V,
= +3.7V to +5.5V,
falling, hysteresis = 90mV
= V
= V
= 1.2V
= 0 to 3A,
= 0 to 3A,
= 110kΩ
= 44kΩ
= 440kΩ
OUT
OUT
CC
CC
CONDITIONS
CONDITIONS
CC
and IN pins; LX = 0
FBSEL = V
FBSEL =
unconnected
FBSEL = REF
(MAX1830)
FBSEL = GND
FBSEL = REF
(MAX1831)
CC
0.7
V
2.475
1.485
1.782
1.078
3.267
MIN
0.85
0.40
CC
-0.5
MIN
- 0.2
1.8
0.3
3.0
2.0
0.9
3.0
-5
0
✕
- 0.2
V
A
CC
= +25°C.)
4
3
TYP
1.00
TYP
✕
165
✕
0.2
0.2
0.1
2.6
0.4
3.9
70
t
256
OFF
V
0.7
CC
+ 0.2
2.575
1.545
1.854
1.122
3.399
MAX
MAX
1.15
300
✕
2.8
0.5
5.0
0.5
0.8
0.2
1.3
+ 0.2
5.5
20
20
20
5
V
CC
UNITS
cycles
UNITS
µA
µA
°C
nA
µs
µs
µs
µs
µs
µA
V
V
V
V
V
V
V
V
V
3