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LTC4080X Scheda tecnica(PDF) 6 Page - Linear Technology

Il numero della parte LTC4080X
Spiegazioni elettronici  500mA Standalone Li-Ion Charger with Integrated 300mA Synchronous Buck in 3mm 횞 3mm DFN
PDF  20 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC4080X Scheda tecnica(HTML) 6 Page - Linear Technology

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LTC4080X
6
4080Xf
20
25
35
15
10
5
0
30
4080
X G17
BATTERY VOLTAGE (V)
2.5
4.5
3.0
3.5
4.0
IOUT = 1mA
VOUT = 1.8V
L = 10
µH
TEMPERATURE (
°C)
0.80
0.90
1.05
0.85
1.00
0.95
4080
X G10
–50
30
–10
–30
50
70
10
90
BATTERY VOLTAGE (V)
2.5
2.26
2.27
2.28
4.0
4080
X G11
2.25
2.24
3.0
3.5
4.5
2.23
2.22
TEMPERATURE (
°C)
–60
1.8
1.9
2.0
2.1
2.2
–20
20
60
100
2.3
2.4
–40
0
40
80
4080
X G12
VBAT = 2.7V
VBAT = 4.5V
VBAT = 3.8V
LOAD CURRENT (mA)
0.01
40
60
80
0.1
10
100
1
1000
20
0
100
1
10
100
0.1
0.01
1000
4080
X G13
VBAT = 3.8V
VOUT = 1.8V
L = 10
µH
C = 4.7
µF
EFFICIENCY
(Burst)
POWER LOSS
(Burst)
EFFICIENCY
(PWM)
POWER
LOSS
(PWM)
BATTERY VOLTAGE (V)
2.5
1.780
1.785
1.790
1.795
1.800
1.805
1.810
3.0
3.5
4.0
4.5
4080
X G14
PWM MODE
IOUT = 1mA
VOUT SET FOR 1.8V
Burst Mode
OPERATION
TEMPERATURE (˚C)
–50
1.800
1.805
1.810
10
50
1.795
1.790
–30
–10
30
70
90
1.785
1.780
4080
X G15
PWM MODE
Burst Mode
OPERATION
IOUT = 1mA
VOUT SET FOR 1.8V
No-Load Buck Input Current
(Burst Mode Operation)
vs Battery Voltage
Normalized Charge Termination
Time vs Temperature
Buck Oscillator Frequency
vs Battery Voltage
Buck Oscillator Frequency
vs Temperature
Buck Efficiency vs Load Current
(VOUT = 1.8V)
Buck Output Voltage
vs Battery Voltage
Buck Output Voltage
vs Temperature
70
40
20
10
0
80
60
50
30
4080
X G09
ICHRG, IACPR = 5mA
TEMPERATURE (
°C)
–50
30
–10
–30
50
70
10
90
⎯C⎯H⎯R⎯G and ⎯A⎯C⎯P⎯R Pin Output
Low Voltage vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS (T
A = 25°C, VCC = 5V, VBAT = 3.8V, unless otherwise
specified)
Buck Efficiency vs Load Current
(VOUT = 1.5V)
LOAD CURRENT (mA)
0.01
40
60
80
0.1
10
100
1
1000
20
0
100
1
10
100
0.1
0.01
1000
4080
X G13a
VBAT = 3.8V
VOUT = 1.5V
L = 10
µH
C = 4.7
µF
EFFICIENCY
(Burst)
POWER LOSS
(Burst)
EFFICIENCY
(PWM)
POWER
LOSS
(PWM)



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