參數(shù)資料
型號(hào): LT1941EFE
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: Triple Monolithic Switching Regulator
中文描述: 6 A SWITCHING REGULATOR, 1350 kHz SWITCHING FREQ-MAX, PDSO28
封裝: 4.40 MM, PLASTIC, TSSOP-28
文件頁(yè)數(shù): 3/24頁(yè)
文件大?。?/td> 336K
代理商: LT1941EFE
3
LT1941
1941f
The
G
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
C.
V
IN
, V
BIAS1
, V
BIAS2
= 5V, V
BOOST1
, V
BOOST2
= 8V, unless otherwise noted. (Note 2)
PARAMETER
CONDITIONS
12GOOD Voltage Output Low
I
12GOOD
= 125
μ
A
12GOOD Leakage
V
12GOOD
= 2V, V
IN
= 12V
PGOOD Voltage Output Low
I
PGOOD
= 200
μ
A
PGOOD Pin Leakage
V
PGOOD
= 2V
3A Step-Down
FB1 Voltage
ELECTRICAL CHARACTERISTICS
MIN
TYP
0.2
10
0.2
10
MAX
0.4
400
0.4
400
UNITS
V
nA
V
nA
618
613
628
638
638
500
mV
mV
nA
mV
G
FB1 Pin Bias Current
PGOOD1 Threshold Offset
Frequency Shift Threshold on FB1
Error Amplifier Transconductance
Error Amplifier Voltage Gain
V
C
Switching Threshold
V
C1
to Switch Current Gain
Switch 1 Current Limit (Note 3)
Switch 1 V
CESAT
(Note 7)
BOOST1 Pin Current
Switch 1 Leakage Current
Minimum Boost Voltage Above Switch (Note 4)
Maximum Duty Cycle
2A Step-Down
FB2 Voltage
G
50
54
0.35
1700
500
0.9
5
4.3
400
40
0.01
1.8
88
V
FB
Rising
V
μ
Mhos
V/V
V
A/V
V
IN
= 12V, V
BOOST1
, V
BOOST2
= 15V
I
SW
= 2.5A
I
SW
= 2.5A
G
3
6
A
600
60
10
2.5
mV
mA
μ
A
V
%
G
78
618
613
628
638
638
500
mV
mV
nA
mV
G
FB2 Pin Bias Current
PGOOD2 Threshold Offset
Frequency Shift Threshold on FB2
Error Amplifier Transconductance
Error Amplifier Voltage Gain
V
C
Switching Threshold
V
C2
to Switch Current Gain
Switch 2 Current Limit (Note 3)
Switch 2 V
CESAT
(Note 7)
BOOST2 Pin Current
Switch 2 Leakage Current
Minimum Boost Voltage Above Switch (Note 4)
Maximum Duty Cycle
1.5A Inverting/Boost
FB3 Voltage
G
50
54
0.35
1700
500
0.9
3.6
2.9
450
26
0.01
1.8
88
V
FB
Rising
V
μ
Mhos
V/V
V
A/V
V
IN
= 12V, V
BOOST1
, V
BOOST2
= 15V
I
SW
= 1.5A
I
SW
= 1.5A
G
2
4.1
600
40
10
2.5
A
mV
mA
μ
A
V
%
G
78
1.23
1.22
1.25
1.27
1.27
1400
15
500
V
V
G
FB3 Pin Bias Current
NFB Voltage
NFB Pin Bias Current
G
800
0
60
nA
mV
nA
G
–15
G
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