參數資料
型號: LTC3553EUD#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
封裝: 3 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件頁數: 3/36頁
文件大小: 518K
代理商: LTC3553EUD#TRPBF
LTC3553
11
3553fa
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C, unless otherwise specied.
LDO Dropout Voltage at
VINLDO = 3.8V
LDO LOAD (mA)
25
50
75
100
150
125
0
LDO
DROPOUT
VOL
TAGE
(mV)
100
150
200
250
300
3553 G37
50
–45°C
25°C
90°C
LDO Dropout Voltage at
VINLDO = 2.5V
LDO LOAD (mA)
25
50
75
100
150
125
0
LDO
DROPOUT
VOL
TAGE
(mV)
100
150
200
250
300
3553 G38
50
–45°C
25°C
90°C
LDO LOAD (mA)
15
30
45
60
75
0
LDO
DROPOUT
VOL
TAGE
(mV)
100
150
200
250
300
3553 G39
50
–45°C
25°C
90°C
LDO Dropout Voltage at
VINLDO = 1.8V
VBUS = 0V
VBAT = 3.8V
STBY = LOW
VOUT
50mV/DIV
(AC)
LDO (3.3V)
50mV/DIV
(AC)
100mA
1mA
ILDO
3553 G40
50μs/DIV
VBUS = 0V
VBAT = 3.8V
STBY = HIGH
VOUT
50mV/DIV
(AC)
LDO (3.3V)
100mV/DIV
(AC)
100mA
1mA
ILDO
3553 G41
50μs/DIV
BUCK OUTPUT CONNECTED TO VINLDO
5mA LDO LOAD
4.7μF LDO OUTPUT CAPACITOR
VBAT = 3.8V, VBUS = 0V
BUCK OUTPUT
1.8V
10mV/DIV (AC)
LDO OUTPUT
1.2V
10mV/DIV (AC)
3553 G42
10μs/DIV
LDO Output Transient
(STBY = Low)
LDO Output Transient
(STBY = High)
LDO Rejection of Buck
Output Ripple
相關PDF資料
PDF描述
LTC3553EUD#PBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC20
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