參數(shù)資料
型號： LT1111M
廠商： Linear Technology Corporation
英文描述： Dual 4-Input Positive-NAND Gates 14-SO 0 to 70
中文描述： 微功率DC / DC轉(zhuǎn)換可調(diào)和固定5V，12V的
文件頁數(shù)： 2/16頁
文件大?。?/td> 337K
代理商： LT1111M
2
LT1111
A
Supply Voltage (V
IN
)............................................... 36V
SW1 Pin Voltage (V
SW1
)......................................... 50V
SW2 Pin Voltage (V
SW2
)............................ –0.5V to V
IN
Feedback Pin Voltage (LT1111)............................. 5.5V
Switch Current....................................................... 1.5A
Maximum Power Dissipation............................ 500mW
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
Operating Temperature Range
LT1111C............................................... 0
°
C to 70
°
C
LT1111I......................................... –40
°
C to 105
°
C
LT1111M....................................... –55
°
C to 125
°
C
Storage Temperature Range ................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
U
PACKAGE/ORDER U
T
JMAX
= 150
°
C,
θ
JA
= 120
°
C/W (J)
T
JMAX
= 90
°
C,
θ
JA
= 130
°
C/W (N)
ORDER PART
NUMBER
LT1111CN8
LT1111CN8-5
LT1111CN8-12
LT1111MJ8
LT1111MJ8-5
LT1111MJ8-12
1
2
3
4
8
7
6
5
TOP VIEW
I
LIM
V
IN
SW1
SW2
FB (SENSE)*
SET
A0
GND
N8
8-LEAD PLASTIC DIP
*FIXED VERSIONS
J8 PACKAGE
8-LEAD CERAMIC DIP
LT1111CS8
LT1111CS8-5
LT1111CS8-12
S8 PART MARKING
T
JMAX
= 90
°
C,
θ
JA
= 150
°
C/W
ORDER PART
NUMBER
1111
11115
11111
SYMBOL
I
Q
V
IN
PARAMETER
Quiescent Current
Input Voltage
CONDITIONS
Switch OFF
Step-Up Mode
Step-Down Mode
LT1111 (Note 1)
LT1111-5 (Note 2)
LT1111-12 (Note 2)
LT1111
LT1111-5
LT1111-12
MIN
TYP
300
MAX
400
12.6
30.0
1.30
5.25
12.60
12.5
50
120
88
59
50
9
7.8
0.65
1.0
1.5
120
UNITS
μ
A
V
V
V
V
V
mV
mV
mV
kHz
%
%
μ
s
μ
s
G
G
2.0
Comparator Trip Point Voltage
Output Sense Voltage
G
1.20
4.75
11.40
1.25
5.00
12.00
8
32
75
72
50
34
7
5
0.5
0.8
1.1
70
V
OUT
G
G
Comparator Hysteresis
Output Hysteresis
G
G
G
f
OSC
DC
Oscillator Frequency
Duty Cycle: Step-Up Mode
Step-Down Mode
Switch ON Time: Step-Up Mode
54
43
24
5
3.3
Full Load
t
ON
I
LIM
Tied to V
IN
V
OUT
, = 5V, V
IN
= 12V
V
IN
= 3.0V, I
SW
= 650mA
V
IN
= 5.0V, I
SW
= 1A
V
IN
= 12V, I
SW
= 650mA
LT1111, V
FB
= 0V
V
SET
= V
REF
I
SINK
= 300
μ
A, V
SET
= 1.00V
Step-Down Mode
V
SAT
SW Saturation Voltage, Step-Up Mode
V
V
V
SW Saturation Voltage, Step-Down Mode
Feedback Pin Bias Current
I
FB
I
SET
V
OL
G
nA
Set Pin Bias Current
Gain Block Output Low
G
70
0.15
300
0.4
nA
V
G
ELECTRICAL C
HARA TERISTICS
V
IN
= 3V, Military or Commercial Version
Consult factory for Industrial grade parts
1
2
3
4
8
7
6
5
TOP VIEW
FB (SENSE)*
SET
A0
GND
I
LIM
V
IN
SW1
SW2
S8 PACKAGE
8-LEAD PLASTIC SO
*FIXED VERSION
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