參數(shù)資料
型號： MAX1722EZK-T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 1.5uA IQ, Step-Up DC-DC Converters in Thin SOT23-5
中文描述： 1 A SWITCHING REGULATOR, PDSO5
封裝： LOW PROFILE, THIN, SOT-23, 5 PIN
文件頁數(shù)： 2/12頁
文件大小： 292K
代理商： MAX1722EZK-T
M
1.5μA I
Q
, Step-Up DC-DC Converters
in Thin SOT23-5
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
OUT,
SHDN
, BATT, LX to GND................................-0.3V to +6V
FB to GND ................................................-0.3V to (V
OUT
+ 0.3V)
OUT, LX Current.......................................................................1A
Continuous Power Dissipation (T
A
= +70°C)
5-Pin Thin SOT23 (derate 7.1mW/°C above +70°C)...571mW
ELECTRICAL CHARACTERISTICS
(V
BATT
= 1.2V, V
OUT
= 3.3V (MAX1722/MAX1723), V
OUT
= V
OUT(NOM)
(MAX1724),
SHDN
= OUT, R
L
=
∞
,
T
A
= 0°C to +85°C
,
unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s)................................ +300°C
T
A
= +85°C
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= +25°C
T
A
= 0°C to +85°C
T
A
= +25°C
MAX1723 (Note 2)
MAX1722/MAX1724
Shutdown Current into OUT
0.1
0.001
μA
Quiescent Current into OUT
1.5
0.01
3.6
0.5
μA
Quiescent Current into BATT
0.01
μA
MAX1723/MAX1724
(Notes 3, 4)
(Notes 3, 4)
MAX1722/MAX1724
(Note 4)
PARAMETER
SYMBOL
MIN
TYP
0.8
MAX
UNITS
V
2.633
2.970
2.925
3.267
4.950
4.875
2
1.223
1.210
2.767
3.030
3.075
3.333
3.383
5.050
5.125
5.5
1.247
1.260
20
Output Voltage
V
OUT
2.673
2.7
2.727
V
0.87
1.2
Minimum Startup Input Voltage
0.83
0.91
V
3.0
3.3
Operating Input Voltage
Minimum Input Voltage
V
IN
0.91
1.2
5.5
5.5
V
5.0
Output Voltage Range
V
OUT
V
Feedback Voltage
V
FB
1.235
V
Feedback Bias Current
I
FB
1.5
2.2
0.5
1.0
500
5
nA
N-Channel On-Resistance
P-Channel On-Resistance
N-Channel Switch Current Limit
Switch Maximum On-Time
R
DS(ON)
R
DS(ON)
I
LIM
t
ON
1.0
2.0
600
6.5
mA
μs
400
3.5
Synchronous Rectifier Zero-
Crossing Current
5
20
35
mA
CONDITIONS
MAX1724EZK50
MAX1724EZK27
T
A
= +25°C,
R
L
= 3k
MAX1724EZK30
MAX1722/MAX1723
MAX1722/MAX1723
MAX1724EZK33
MAX1722/MAX1723
MAX1722/MAX1724
V
OUT
forced to 3.3V
V
OUT
forced to 3.3V
V
OUT
forced to 3.3V
T
A
= +25°C
V
OUT
forced to 3.3V
MAX1722/MAX1724
MAX1723 (Note 2)
T
A
= +85°C
T
A
= +25°C
T
A
= +25°C
T
A
= +85°C
0.5
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