參數(shù)資料
型號(hào)： MAX1724EZK50-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(yè)數(shù)： 3/12頁(yè)
文件大?。?/td> 292K
代理商： MAX1724EZK50-T
M
1.5μA I
Q
, Step-Up DC-DC Converters
in Thin SOT23-5
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(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)
Note 1:
Limits are 100% production tested at T
A
= +25°C. Limits over the operating temperature range are guaranteed by design.
Note 2:
Guaranteed with the addition of a Schottky MBR0520L external diode between LX and OUT when using the MAX1723
with only one cell, and assumes a 0.3V voltage drop across the Schottky diode (see Figure 3).
Note 3:
Supply current is measured with an ammeter between the output and OUT pin. This current correlates directly with actual
battery supply current, but is reduced in value according to the step-up ratio and efficiency.
Note 4:
V
OUT
forced to the following conditions to inhibit switching: V
OUT
= 1.05
V
OUT(NOM)
(MAX1724), V
OUT
= 3.465V
(MAX1722/MAX1723).
V
IL
V
IH
MAX1723/MAX1724
MAX1723/MAX1724
T
A
= +85°C
T
A
= +25°C
T
A
= +85°C
T
A
= +25°C
0.001
0.01
400
0.5
SHDN
Voltage Threshold
500
2
800
100
mV
Shutdown Current into BATT
μA
SHDN
Input Bias Current
7
nA
MAX1724 (Note 4)
MAX1723/MAX1724,
V
SHDN
= 5.5V
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
CONDITIONS
75
PARAMETER
SYMBOL
CONDITIONS
MIN
2.633
2.925
3.218
4.875
2
1.200
TYP
MAX
2.767
3.075
3.383
5.125
5.5
1.270
1.0
2.0
620
6.5
UNITS
MAX1724EZK27
MAX1724EZK30
MAX1724EZK33
MAX1724EZK50
MAX1722/MAX1723
MAX1722/MAX1723
V
OUT
forced to 3.3V
V
OUT
forced to 3.3V
V
OUT
forced to 3.3V
O utp ut V ol ag e
V
OUT
V
O utp ut V ol ag e Rang e
Feedback Voltage
N-Channel On-Resistance
P-Channel On-Resistance
N-Channel Switch Current Limit
Switch Maximum On-Time
V
OUT
V
FB
R
DS(ON)
R
DS(ON)
I
LIM
t
ON
V
V
mA
μs
400
3.5
Synchronous Rectifier Zero-
Crossing Current
V
OUT
forced to 3.3V
5
35
mA
Quiescent Current into OUT
(Notes 3,4)
MAX1723/MAX1724
3.6
μA
V
IL
V
IH
75
SHDN
Voltage Threshold
MAX1723/MAX1724
800
mV
ELECTRICAL CHARACTERISTICS
(V
BATT
= 1.2V, V
OUT
= 3.3V (MAX1722/MAX1723), V
OUT
= V
OUT(NOM)
(MAX1724),
SHDN
= OUT, R
L
=
∞
,
T
A
= -40
°
C to +85
°
C
,
unless otherwise noted.) (Note 1)
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