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LTC3245 データシート(PDF) 5 Page - Linear Technology

部品番号 LTC3245
部品情報  Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump
PDF  16 Pages
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メーカー  LINER [Linear Technology]
ホームページ  http://www.linear.com
Logo LINER - Linear Technology

LTC3245 データシート(HTML) 5 Page - Linear Technology

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LTC3245
5
3245f
For more information www.linear.com/LTC3245
Typical perForMance characTerisTics
5V Output Impedance
vs Temperature (Boost Mode)
3.3V Output Impedance
vs Temperature (Boost Mode)
Output Current vs Input Voltage
(VOUT 5% Below Regulation)
5V Fixed Output Voltage
vs Falling Input Voltage
(Burst Mode Operation)
3.3V Fixed Output Voltage
vs Falling Input Voltage
(Burst Mode Operation)
ADJ Regulation Voltage
vs Temperature
TA = 25°C, unless otherwise noted.
VIN (V)
2
4.900
4.925
4.950
4.975
5.000
5.050
5.025
5.075
5.100
3 4 5 6
8
7
9
3245 G10
10 11
14
12 13
15
IOUT = 250mA
IOUT = 1mA
–55°C
25°C
125°C
VIN (V)
2
3.200
3.225
3.250
3.275
3.300
3.350
3.325
3.375
3.400
3 4 5 6
8
7
9
3245 G11
10 11
14
12 13
15
IOUT = 250mA
IOUT = 1mA
–55°C
25°C
125°C
TEMPERATURE (°C)
–60
0
5
10
15
20
25
30
–30
0
30
60
3245 G13
90
120 150
VIN = 2.7V
VIN = 3.3V
LOW NOISE
Burst Mode OPERATION
TEMPERATURE (°C)
–60
0
5
10
15
30
25
20
35
40
–30
0
30
3245 G14
60
90
120 150
VIN = 2.7V
VIN = 3.3V
LOW NOISE
Burst Mode OPERATION
VIN (V)
2
0
100
200
300
700
600
500
400
800
3 4 5 6
3245 G15
7 8 9 10 11 12 13 14
5V Burst Mode
OPERATION
3.3V Burst Mode
OPERATION
3.3V LOW NOISE
5V LOW NOISE
TEMPERATURE (°C)
–60
1.180
1.185
1.190
1.195
1.200
1.210
1.205
1.215
1.220
–30
0
30
60
3245 G12
90
120 150
VOUT (V)
2.5
0
1
2
7
6
5
4
3
8
11
10
9
12
3
3245 G17
3.5
4
4.5
5
BUCK
LDO
FALLING
RISING
RISING
FALLING
BOOST
IOUT = 150mA
VOUT (V)
2.5
0
1
2
7
6
5
4
3
8
11
10
9
12
3
3245 G18
3.5
4
4.5
5
BUCK
LDO
FALLING
RISING
RISING
FALLING
BOOST
IOUT = 250mA
VOUT (V)
2.5
0
1
2
7
6
5
4
3
8
11
10
9
12
3
3245 G16
3.5
4
4.5
5
BUCK
IOUT = 1mA
LDO
FALLING
RISING
RISING
FALLING
BOOST
Operating Mode Transition
Voltage vs Input Voltage
Operating Mode Transition
Voltage vs Input Voltage
Operating Mode Transition
Voltage vs Input Voltage



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