LTC1550 Просмотр технического описания (PDF) - Linear Technology
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LTC1550 Datasheet PDF : 12 Pages
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LTC1550/LTC1551
ELECTRICAL CHARACTERISTICS
VCC = 4.5V to 6.5V, C1 = C2 = 0.1µF, COUT = 10µF, TA = 25°C unless otherwise specified. (Note 3)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
ISC
VRIPPLE
Output Regulation
(LTC1550CGN/LTC1550IGN)
Output Regulation
(LTC1550CGN/LTC1550IGN)
Output Regulation
(LTC1550CGN/LTC1550IGN)
Output Regulation
(LTC1550CGN/LTC1550IGN)
Output Regulation
(LTC1550CGN/LTC1550IGN)
Output Regulation
(LTC1550CS8-4.1/LTC1551CS8-4.1)
Output Short-Circuit Current
Output Ripple Voltage
3.05V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 5mA
3.45V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 10mA
4.1V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 20mA
3.45V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 5mA
3.85V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 10mA
4.5V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 20mA
3.9V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 5mA
4.2V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 10mA
4.85V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 20mA
4.5V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 5mA
4.75V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 10mA
5.35V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 20mA
4.8V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 5mA
5.1V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 10mA
5.7V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 20mA
4.5V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 5mA
4.75V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 10mA
5.35V ≤ VCC ≤ 6.5V, 0 ≤ IOUT ≤ 20mA
VOUT = 0V, VCC = 5V
VOUT = 0V, VCC = 6.5V
q – 2.625 – 2.5 – 2.375
V
q – 2.625 – 2.5 – 2.375
V
q – 2.625 – 2.5 – 2.375
V
q – 3.15 – 3.0 – 2.85
V
q – 3.15 – 3.0 – 2.85
V
q – 3.15 – 3.0 – 2.85
V
q – 3.675 – 3.5 – 3.325
V
q – 3.675 – 3.5 – 3.325
V
q – 3.675 – 3.5 – 3.325
V
q – 4.3 – 4.1 – 3.9
V
q – 4.3 – 4.1 – 3.9
V
q – 4.3 – 4.1 – 3.9
V
q – 4.725 – 4.5 – 4.275
V
q – 4.725 – 4.5 – 4.275
V
q – 4.725 – 4.5 – 4.275
V
q – 4.3 – 4.1 – 3.9
V
q – 4.3 – 4.1 – 3.9
V
q – 4.3 – 4.1 – 3.9
V
q
50
150
mA
q
80
200
mA
1
mV
The q denotes specifications which apply over the specified
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 3: C-grade device specifications are guaranteed over the 0°C to 70°C
temperature range. In addition, C-grade device specifications are assured
over the – 40°C to 85°C temperature range by design or correlation, but
are not production tested.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified. All typicals are given at TA = 25°C.
TYPICAL PERFORMANCE CHARACTERISTICS
Oscillator Frequency
vs Temperature
975
VOUT = – 4.1V
VCC = 5V
925
875
825
775
725
675
–45 –25
–5 15 35 55 75 95
TEMPERATURE (˚C)
LTC1550/51 G01
Supply Current vs Temperature
6.0
VOUT = – 4.1V
5.5
5.0
4.5
VCC = 5V
4.0
3.5
3.0
–45 –25
–5 15 35 55 75 95
TEMPERATURE (°C)
LTC1550/51 G02
Output Voltage vs Output Current
(LTC1550CS8-4.1/LTC1551CS8-4.1)
– 3.0
TA = 25°C
– 3.2
– 3.4
VCC = 4.5V
– 3.6
VCC = 5V
– 3.8
– 4.0
– 4.2
0
VCC = 6.5V
5 10 15 20 25 30
OUTPUT CURRENT (mA)
LTC1550/51 G03
3
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