參數(shù)資料
型號(hào): LTC3554EUD#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.6 A BATTERY CHARGE CONTROLLER, 2590 kHz SWITCHING FREQ-MAX, PQCC20
封裝: 3 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件頁(yè)數(shù): 35/36頁(yè)
文件大?。?/td> 418K
代理商: LTC3554EUD#PBF
LTC3554/LTC3554-2
8
35542fb
TYPICAL PERFORMANCE CHARACTERISTICS
Burst Mode
BVIN Supply
Current Per Enabled Step-Down
Switching Regulator
Standby Mode BVIN Supply
Current Per Enabled Step-Down
Switching Regulator
Oscillator Frequency
vs Temperature
Step-Down Switching Regulator 1
3.3V Output Efciency vs IOUT1
Step-Down Switching Regulator 2
1.8V Output Efciency vs IOUT2
TA = 25°C, unless otherwise specied.
Step-Down Switching Regulator 1
2.5V Output Efciency vs IOUT1
Step-Down Switching Regulator 2
1.2V Output Efciency vs IOUT2
Switching from Suspend Mode to
500mA Mode
VBAT = 3.75V
IOUT = 50mA
RPROG = 2k
3554 G15
1ms/DIV
5V
SUSP
VOUT
0
0A
IBUS
0.5A/DIV
IBAT
0.5A/DIV
Switching from 100mA Mode to
500mA Mode
VBAT = 3.75V
IOUT = 50mA
RPROG = 2k
3554 G14
1ms/DIV
5V
HPWR
0
0A
IBUS
0.5A/DIV
IBAT
0.5A/DIV
TEMPERATURE (°C)
–75 –50 –25
25
50
75 100
150
125
0
1.9
OSCILLA
TOR
FREQUENCY
(MHz)
2.1
2.2
2.4
2.6
2.5
2.3
3554 G16
2.0
2.7V
3.8V
5.5V
IOUT1 (mA)
0.01
0.1
0
EFFICIENCY
(%)
70
100
1
10
100
1000
3554 G24a
60
50
40
30
20
10
80
90
FSEL = L
STBY = L
3.8V
5V
IOUT2 (mA)
0.01
0.1
0
EFFICIENCY
(%)
70
100
1
10
100
1000
3554 G25
60
50
40
30
20
10
80
90
FSEL = L
STBY = L
3.8V
5V
BVIN SUPPLY VOLTAGE (V)
2.5
3
4
4.5
5.5
5
3.5
0
BV
IN
SUPPL
Y
CURRENT
(μA)
10
15
25
35
30
20
3554 G17
5
NO LOAD
STBY = L
–45°C
25°C
90°C
BVIN SUPPLY VOLTAGE (V)
2.5
3
4
4.5
5.5
5
3.5
0
BV
IN
SUPPL
Y
CURRENT
(μA)
1.0
1.5
2.5
3.0
2.0
3554 G18
0.5
NO LOAD
STBY = H
–45°C
25°C
90°C
IOUT1 (mA)
EFFICIENCY
(%)
3554 G31
0.01
0.1
100
1000
10
1
0
20
30
80
40
50
60
90
100
70
10
FSEL = L
STBY = L
3.8V
5V
IOUT2 (mA)
EFFICIENCY
(%)
3554 G32
0.01
0.1
100
1000
10
1
0
20
30
80
40
50
60
90
100
70
10
FSEL = L
STBY = L
3.8V
5V
相關(guān)PDF資料
PDF描述
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