參數(shù)資料
型號: LTC3772BETS8#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 1 MM HEIGHT, LEAD FREE, PLASTIC, MO-193, TSOT-23, 8 PIN
文件頁數(shù): 16/20頁
文件大?。?/td> 318K
代理商: LTC3772BETS8#PBF
5
LTC3772B
3772bfa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Maximum Current Sense
Threshold vs Temperature
Soft-Start Time vs Temperature
Foldback Frequency
vs Temperature
TEMPERATURE (
°C)
–60
0
MAXIMUM
CURRENT
SENSE
THRESHOLD
(mV)
50
100
150
200
–20
20
60
100
3772B G13
250
300
–40
0
40
80
IPRG = VIN
IPRG = FLOAT
IPRG = GND
TEMPERATURE (
°C)
–60
500
SOFT-START
TIME
(
s)
600
700
800
900
–20
20
60
100
3772B G14
1000
1100
–40
0
40
80
TEMPERATURE (
°C)
–60
FREQUENCY
(Hz)
190
210
100
3772B G15
170
150
–20
20
60
–40
0
40
80
230
180
200
160
220
VFB = 0V
Efficiency vs Load Current
LOAD CURRENT (mA)
10
40
EFFICIENCY
(%)
80
90
100
1000
10000
3772B G17
70
60
50
VOUT = 2.5V
VOUT = 3.3V
VOUT = 1.8V
VIN = 5V
FIGURE 5 CIRCUIT
Load Step
Start-Up
LOAD CURRENT (mA)
60
EFFICIENCY
(%)
80
100
50
70
90
1
100
1000
10000
3772B G16
40
10
VIN = 3.3V
VIN = 4.2V
VIN = 7V
VIN = 5V
VOUT = 2.5V
FIGURE 5 CIRCUIT
VOUT
1V/DIV
ITH/RUN
1V/DIV
INDUCTOR
CURRENT
2A/DIV
VIN = 5V
VOUT = 2.5V
RLOAD = 1.5
FIGURE 5 CIRCUIT
s/DIV
3772B G18
VOUT
100mV/DIV
(AC)
ILOAD
2A/DIV
IL
2A/DIV
VIN = 5V
VOUT = 2.5V
ILOAD = 100mA TO 1.5A
FIGURE 5 CIRCUIT
20
s/DIV
3772B G19
相關(guān)PDF資料
PDF描述
LTC3772ETS8#PBF 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8
LTC3783IDHD 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
LTC3783IFE#TR 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
LTC3783IDHD#TR 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
LTC3783IFE 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
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