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LTC1754-3.3 Datenblatt(Datasheet) 2 Page - Linear Technology

Teile-Nr. LTC1754-3.3
Beschreibung  Micropower, Regulated 3.3V/5V Charge Pump with Shutdown in SOT-23
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Hersteller  LINER [Linear Technology]
Homepage  http://www.linear.com
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2
LTC1754-3.3/LTC1754-5
ORDER PART
NUMBER
Consult factory for Industrial and Military grade parts.
(Note 1)
VIN to GND .................................................. –0.3V to 6V
VOUT to GND ............................................... –0.3V to 6V
SHDN to GND .............................................. – 0.3V to 6V
IOUT (Note 4) ......................................................... 75mA
VOUT Short-Circuit Duration ............................ Indefinite
Operating Temperature Range (Note 3) ... – 40
°C to 85°C
Storage Temperature Range .................. – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300
°C
LTC1754ES6-3.3
LTC1754ES6-5
TJMAX = 150°C, θJA = 230°C/ W
S6 PART MARKING
LTGK
LTLW
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. CFLY = 1µF (Note 2), CIN = 10µF, COUT = 10µF.
VOUT 1
GND 2
SHDN 3
6 C +
5 VIN
4 C
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC SOT-23
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: 0.6
µF is the minimum required CFLY capacitance for rated output
current capability. Depending on the choice of capacitor material, a
somewhat higher value of capacitor may be required to attain 0.6
µF over
temperature.
Note 3: The LTC1754ES6-X is guaranteed to meet performance
specifications from 0
°C to 70°C. Specifications over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 4: Based on long term current density limitations.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LTC1754-3.3
VIN
Input Supply Voltage
q
2.0
4.4
V
VOUT
Output Voltage
2.0V
≤ VIN ≤ 4.4V, IOUT ≤ 20mA
q
3.17
3.30
3.43
V
2.5V
≤ VIN ≤ 4.4V, IOUT ≤ 40mA
q
3.17
3.30
3.43
V
ICC
Operating Supply Current
2.0V
≤ VIN ≤ 4.4V, IOUT = 0mA, SHDN = VIN
q
11
30
µA
VR
Output Ripple
VIN = 2.5V, IOUT = 40mA
23
mVP-P
η
Efficiency
VIN = 2.0V, IOUT = 20mA
82
%
fOSC
Switching Frequency
Oscillator Free Running
600
kHz
tON
VOUT Turn-On Time
VIN = 2.0V, IOUT = 0mA
0.8
ms
ISC
Output Short-Circuit Current
VIN = 2.5V, VOUT = 0V, SHDN = 2.5V
118
mA
LTC1754-5
VIN
Input Supply Voltage
q
2.7
5.5
V
VOUT
Output Voltage
2.7V
≤ VIN ≤ 5.5V, IOUT ≤ 25mA
q
4.8
5.0
5.2
V
3.0V
≤ VIN ≤ 5.5V, IOUT ≤ 50mA
q
4.8
5.0
5.2
V
ICC
Operating Supply Current
2.7V
≤ VIN ≤ 5.5V, IOUT = 0mA, SHDN = VIN
q
13
30
µA
VR
Output Ripple
VIN = 3V, IOUT = 50mA
65
mVP-P
η
Efficiency
VIN = 3V, IOUT = 50mA
82.7
%
fOSC
Switching Frequency
Oscillator Free Running
700
kHz
tON
VOUT Turn-On Time
VIN = 3V, IOUT = 0mA
0.4
ms
ISC
Output Short-Circuit Current
VIN = 3V, VOUT = 0V, SHDN = 3V
150
mA
LTC1754-3.3/LTC1754-5
ISHDN
Shutdown Supply Current
VIN ≤ 3.6V, IOUT = 0mA, VSHDN = 0V
q
0.01
1
µA
3.6V < VIN, IOUT = 0mA, VSHDN = 0V
q
2.5
µA
VIH
SHDN Input Threshold (High)
q
1.4
V
VIL
SHDN Input Threshold (Low)
q
0.3
V
IIH
SHDN Input Current (High)
SHDN = VIN
q
–1
1
µA
IIL
SHDN Input Current (Low)
SHDN = 0V
q
–1
1
µA
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
ELECTRICAL CHARACTERISTICS




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