MAX1842EEE+ Maxim Integrated Products, MAX1842EEE+ Datasheet - Page 3

• Manufacturer Part Number: MAX1842EEE+
• Description: IC BUCK SYNC FIX/ADJ 1A 16QSOP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX1842EEE+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.5V, 1.8V, 2.5V, Adj
• Current - Output: 1A
• 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: 1W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
Current-Limit Threshold
RMS LX Output Current
Idle Mode Current Threshold
Switching Frequency
No-Load Supply Current
Shutdown Supply Current
PMOS Switch Off-Leakage
Current
Thermal Shutdown Threshold
Undervoltage Lockout Threshold
FB Input Bias Current
Off-Time Default Period
Off-Time Startup Period
On-Time Period
SS Source Current
SS Sink Current
SHDN Input Current
SHDN Input Low Threshold
SHDN Input High Threshold
FBSEL Input Current
FBSEL Logic Thresholds
IN
= V
Synchronous Rectification and Internal Switches
CC
PARAMETER
= 3.3V, FBSEL = GND, T
_______________________________________________________________________________________
1A/2.7A, 1MHz, Step-Down Regulators with
I
A
CC
SYMBOL
I
IN
T
= 0°C to +85°C, unless otherwise noted. Typical values are at T
V
I
I
SHDN
LIMIT
(SHDN) SHDN = GND
SHDN
t
t
UVLO
t
V
I
OFF
OFF
I
I
V
I
+ I
I
ON
FB
SS
SS
IM
IN
f
IH
IL
CC
MAX1742
MAX1842
MAX1742
MAX1842
(Note 2)
V
SHDN = GND
Hysteresis = 15°C
V
V
R
R
R
FB = GND
(Note 2)
V
V
FBSEL = GND
FBSEL = REF
FBSEL = unconnected
FBSEL = V
FB
IN
FB
SS
TOFF
TOFF
TOFF
SHDN
falling, hysteresis = 90mV
= 1.2V
= 1.2V
= 1V
= 110kΩ
= 30.1kΩ
= 499kΩ
= 0 to V
CC
CONDITIONS
CC
0.7
MIN
- 0.2
0.24
V
100
1.3
3.1
0.1
0.3
2.5
0.9
3.8
0.4
2.0
0.9
-1
-4
CC
0
4
- 0.2
✕
A
VCC
= +25°C.)
4
TYP
1.00
0.30
✕
350
160
1.5
3.6
0.3
0.6
2.6
4.5
<1
60
5
t
OFF
0.7
+0.2
✕
MAX
0.37
600
250
VCC
1.7
4.1
3.1
0.5
0.9
2.7
1.1
5.2
0.8
0.2
1.3
+4
15
1
5
6
1
UNITS
MHz
µA
µA
µA
nA
µA
µA
µA
µA
°C
µs
µs
µs
A
A
A
V
V
V
V
3