MAX1722 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX1722 Datasheet PDF : 12 Pages
| |||
1.5µA IQ, Step-Up DC-DC Converters
in Thin SOT23-5
ABSOLUTE MAXIMUM RATINGS
OUT, SHDN, BATT, LX to GND ................................-0.3V to +6V
FB to GND ................................................-0.3V to (VOUT + 0.3V)
OUT, LX Current.......................................................................1A
Continuous Power Dissipation (TA = +70°C)
5-Pin Thin SOT23 (derate 7.1mW/°C above +70°C) ...571mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VBATT = 1.2V, VOUT = 3.3V (MAX1722/MAX1723), VOUT = VOUT(NOM) (MAX1724), SHDN = OUT, RL = ∞, TA = 0°C to +85°C,
unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Minimum Input Voltage
MAX1722/MAX1724
0.8
V
Operating Input Voltage
VIN
TA = +25°C
MAX1722/MAX1724
0.91
MAX1723 (Note 2)
1.2
5.5
V
5.5
Minimum Startup Input Voltage
TA = +25°C,
RL = 3kΩ
MAX1722/MAX1724
MAX1723 (Note 2)
0.83 0.91
V
0.87
1.2
MAX1724EZK27
Output Voltage
VOUT
MAX1724EZK30
MAX1724EZK33
Output Voltage Range
Feedback Voltage
VOUT
VFB
MAX1724EZK50
MAX1722/MAX1723
MAX1722/MAX1723
Feedback Bias Current
IFB
MAX1722/MAX1723
N-Channel On-Resistance
P-Channel On-Resistance
N-Channel Switch Current Limit
Switch Maximum On-Time
RDS(ON)
RDS(ON)
ILIM
tON
VOUT forced to 3.3V
VOUT forced to 3.3V
VOUT forced to 3.3V
TA = +25°C
TA = 0°C to +85°C
TA = +25°C
TA = 0°C to +85°C
TA = +25°C
TA = 0°C to +85°C
TA = +25°C
TA = 0°C to +85°C
TA = +25°C
TA = 0°C to +85°C
TA = +25°C
TA = +85°C
2.673 2.7 2.727
2.633
2.767
2.970 3.0 3.030
2.925
3.075
V
3.267 3.3 3.333
3.218
3.383
4.950 5.0 5.050
4.875
5.125
2
5.5
V
1.223 1.235 1.247
V
1.210
1.260
1.5
20
nA
2.2
0.5
1.0
Ω
1.0
2.0
Ω
400
500
600 mA
3.5
5
6.5
µs
Synchronous Rectifier Zero-
Crossing Current
VOUT forced to 3.3V
5
20
35
mA
Quiescent Current into OUT
Shutdown Current into OUT
Quiescent Current into BATT
(Notes 3, 4)
MAX1723/MAX1724
(Notes 3, 4)
MAX1722/MAX1724
(Note 4)
TA = +25°C
TA = +85°C
TA = +25°C
TA = +85°C
1.5
3.6
µA
0.01
0.5
µA
0.1
0.001 0.5
µA
0.01
2 _______________________________________________________________________________________
Share Link: 