LTC1754-5 データシートの表示（PDF） - Linear Technology
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LTC1754-5 Datasheet PDF : 8 Pages
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LTC1986
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, VOUT to GND .........................................– 0.3V to 6V
All Other Pins to GND ..................................– 0.3V to 6V
VOUT Short-Circuit Duration ............................. Indefinite
Operating Temperature Range
(Note 2) .................................................. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
VOUT 1
GND 2
MODE 3
TOP VIEW
6 VIN
5 C1+
4 C1–
ORDER PART
NUMBER
LTC1986ES6
S6 PACKAGE
6-LEAD PLASTIC SOT-23
TJMAX = 125°C, θJA = 230°C/ W
S6 PART MARKING
LTKX
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VIN = VMIN to VMAX, MODE = VIN, C1 = 0.047µF, COUT = 2.2µF, unless otherwise specified.
PARAMETER
VIN Operating Voltage
VOUT Output Voltage
VIN Operating Current
VIN-to-VOUT ON Resistance
VOUT Short-Circuit Current
VOUT Discharge Resistance
Switching Frequency
CONDITIONS
Shutdown Mode
3V Mode. VIN = 2.85V to 4.4V, IOUT ≤ 10mA
3V Mode, VIN < 2.85V, IOUT < 10mA
5V Mode, VIN < 2.7V, IOUT ≤ 10mA
5V Mode, VIN = 2.7V to 4.4V, IOUT ≤ 10mA
Shutdown Mode, VMODE = 0V
3V Mode, IOUT = 0mA
5V Mode, IOUT = 0mA
3V Mode, VIN = 3V
3V or 5V Mode, VOUT = 0V
Oscillator Free-Running
MIN TYP MAX
q 2.6
4.4
0
VIN – 0.025
q 2.75
2.9
3.05
q 4.55
5
5.25
q 4.75
5
5.25
q
0.001
1
q
10
25
q
14
30
q
2.5
5
q
20
100 200
q
70
200
900
UNITS
V
V
V
V
V
V
µA
µA
µA
Ω
mA
Ω
kHz
MODE Input Ranges
MODE Input Current
Undervoltage Lockout Threshold
Shutdown Mode
5V Mode
3V Mode
q
0
q VIN/2 + 0.1
q VIN – 0.25
VIN/2 – 0.1
V
VIN – 1.0
V
VIN
V
q
–1
1
µA
1.4
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1986 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.
2
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