LTC4081(RevA) データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LTC4081 Datasheet PDF : 24 Pages
| |||
LTC4081
TYPICAL PERFORMANCE CHARACTERISTICS
(TA = 25°C, VCC = 5V, VBAT = 3.8V, unless otherwise specified)
No-Load Buck Input Current
(Burst Mode Operation)
vs Temperature
35
L = 10μH
30
C = 4.7μF
VOUT = 1.8V
VBAT = 4.2V
25
VBAT = 3.8V
20
VBAT = 2.7V
15
10
Buck Main Switch (PMOS)
On-Resistance vs Battery Voltage
1.2
1.0
0.8
0.6
0.4
5
0.2
0
–50 –30
–10 10 30 50
TEMPERATURE (°C)
70 90
4081 G18
0
2.5
3.0
3.5 4.0
4.5 5.0
BATTERY VOLTAGE (V)
4081 G19
Buck Main Switch (PMOS)
On-Resistance vs Temperature
1.2
1.0
0.8
0.6
0.4
0.2
0
–50 –30
–10 10 30 50
TEMPERATURE (°C)
70 90
4081 G20
Buck Synchronous Switch (NMOS)
On-Resistance vs Battery Voltage
1.2
Buck Synchronous Switch (NMOS)
On-Resistance vs Temperature
1.2
1.0
1.0
0.8
0.8
0.6
0.4
0.2
0
2.5
3.0
3.5
4.0
4.5
BATTERY VOLTAGE (V)
5.0
4081 G21
0.6
0.4
0.2
0
–50 –30
–10 10 30 50
TEMPERATURE (°C)
70 90
4081 G22
Maximum Output Current
(PWM Mode) vs Battery Voltage
500
L = 10μH
VOUT SET FOR 1.8V
400
300
200
100
2.7
3 3.3 3.6 3.9 4.2 4.5
BATTERY VOLTAGE (V)
4081 G23
Maximum Output Current (Burst
Mode Operation) vs Battery Voltage
80
L = 10μH
70
60
VOUT SET FOR 1.8V
50
40
30
20
10
0
2.7 3 3.3 3.6 3.9 4.2 4.5
BATTERY VOLTAGE (V)
4081 G24
For more information www.linear.com/LTC4081
4081fa
7
Share Link: 