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MAX1719EUT Datasheet(PDF) 3 Page - Maxim Integrated Products

Part # MAX1719EUT
Description  SOT23, Switched-Capacitor Voltage Inverters with Shutdown
PDF  8 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1719EUT Datasheet(HTML) 3 Page - Maxim Integrated Products

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SOT23, Switched-Capacitor
Voltage Inverters with Shutdown
_______________________________________________________________________________________
3
-5
-4
-3
-2
-1
0
020 25
10 15
530 35 404550
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
VIN = +1.5V
VIN = +2V
VIN = +3.3V
VIN = +5V
0
20
10
40
30
60
50
70
90
80
100
010 1520
525 3035
45
40
50
MAX1720
EFFICIENCY vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
VIN = +1.5V
VIN = +3.3V
VIN = +2V
VIN = +5V
0
20
10
40
30
60
50
70
90
80
100
010 1520
525 3035
45
40
50
MAX1719/MAX1721
EFFICIENCY vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
VIN = +1.5V
VIN = +2V
VIN = +3.3V
VIN = +5V
Typical Operating Characteristics
(Circuit of Figure 1, VIN = +5V, SHDN = GND (MAX1719), SHDN = IN (MAX1720/MAX1721), C1 = C2 = C3, TA = +25°C, unless other-
wise noted.)
ELECTRICAL CHARACTERISTICS
(VIN = +5V, SHDN = GND (MAX1719), SHDN = IN (MAX1720/MAX1721), C1 = C2 = 10µF (MAX1720), C1 = C2 = 1µF
(MAX1719/MAX1721), circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
VIN (MIN)
≤ VIN ≤ +2.5V
RL = 10k
Ω
+2.5V
≤ VIN ≤ +5.5V
VIN (MIN)
≤ VIN ≤ +2.5V
+2.5V
≤ VIN ≤ +5.5V
IOUT = 0
SHDN = IN (MAX1719), SHDN = GND
(MAX1720/MAX1721), OUT is internally
forced to GND in shutdown
MAX1720
IOUT = 10mA
CONDITIONS
0.2
V
0.6
VIL
SHDN/ SHDN Input Logic Low
VIN - 0.2
V
2.1
VIH
SHDN/ SHDN Input Logic High
Ω
12
RO, SHDN
OUT to GND Shutdown
Resistance
65
Ω
RO
Output Resistance (Note 1)
MAX1719/MAX1721
1.6
5.5
MAX1719/MAX1721
1.5
5.5
MAX1720
%
99
Voltage Conversion Efficiency
60
200
kHz
621
fOSC
Oscillator Frequency
µA
100
ICC
Quiescent Current (Note 3)
750
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
VIN
Supply Voltage Range
MAX1720
Note 1: Capacitor contribution (ESR component plus (1/fOSC) · C) is approximately 20% of output impedance.
Note 2: All specifications from -40°C to +85°C are guaranteed by design, not production tested.
Note 3: The MAX1719/MAX1720/MAX1721 may draw high supply current during startup, up to the minimum operating supply voltage.
To guarantee proper startup, the input supply must be capable of delivering 90mA more than the maximum load current.
Continuous, long-term
25
mARMS
IOUT
Output Current
MAX1719/MAX1721



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