參數(shù)資料
型號(hào): LTC1148HVIS-5
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14
封裝: 0.150 INCH, PLASTIC, SOP-14
文件頁(yè)數(shù): 3/20頁(yè)
文件大?。?/td> 250K
代理商: LTC1148HVIS-5
3
LTC1148
LTC1148-3.3/LTC1148-5
114835fd
SYMBOL
V
8
– V
7
PARAMETER
Current Sense Threshold Voltage
LTC1148, LTC1148HV, LTC1148L
CONDITIONS
MIN
TYP
MAX
UNITS
V
SENSE–
= 5V, V
9
= V
OUT
/4 + 25mV (Forced)
V
SENSE–
= 5V, V
9
= V
OUT
/4 – 25mV (Forced)
V
SENSE–
= V
OUT
+ 100mV (Forced)
V
SENSE–
= V
OUT
– 100mV (Forced)
V
SENSE–
= V
OUT
+ 100mV (Forced)
V
SENSE–
= V
OUT
– 100mV (Forced)
25
150
25
150
25
150
0.8
1.2
70
2
5
100
mV
mV
mV
mV
mV
mV
130
170
LTC1148-3.3, LTC1148HV-3.3
LTC1148L-3.3
LTC1148-5, LTC1148HV-5
130
170
130
0.5
170
2
5
90
10
6
200
V
10
I
10
I
4
Shutdown Pin Threshold
Shutdown Pin Input Current
C
T
Pin Discharge Current
V
0V < V
SHUTDOWN
< 8V, V
IN
= 16V
V
OUT
in Regulation, V
SENSE–
= V
OUT
V
OUT
= 0V
C
T
= 390pF, I
LOAD
= 700mA
C
L
= 3000pF (Pins 1, 14), V
IN
= 6V
μ
A
μ
A
μ
A
μ
s
ns
50
t
OFF
t
R
, t
F
Off Time (Note 5)
Driver Output Transition Times
4
SYMBOL
V
9
PARAMETER
Feedback Voltage (LTC1148, LTC1148HV
LTC1148L)
Regulated Output Voltage
LTC1148-3.3, LTC1148HV-3.3, LTC1148L-3.3
LTC1148-5, LTC1148HV-5
Input DC Supply Current (Note 3)
LTC1148 Series
Normal Mode
Sleep Mode
Sleep Mode
Shutdown
LTC1148HV Series
Normal Mode
Sleep Mode
Sleep Mode
Shutdown
LTC1148L Series
Normal Mode
Sleep Mode
Shutdown
Current Sense Threshold Voltage
LTC1148, LTC1148HV, LTC1148L (Note 4)
CONDITIONS
V
IN
= 9V
MIN
1.20
TYP
1.25
MAX
1.30
UNITS
V
V
OUT
V
IN
= 9V
I
LOAD
= 700mA
I
LOAD
= 700mA
(Note 7)
3.17
4.85
3.33
5.05
3.43
5.20
V
V
I
Q
4V < V
IN
< 12V
4V < V
IN
< 12V
6V < V
IN
< 12V
V
SHUTDOWN
= 2.1V, 4V < V
IN
< 12V
1.6
160
160
10
2.4
260
260
22
mA
μ
A
μ
A
μ
A
4V < V
IN
< 18V
4V < V
IN
< 18V
6V < V
IN
< 18V
V
SHUTDOWN
= 2.1V, 4V < V
IN
< 18V
1.6
160
160
10
2.6
280
280
24
mA
μ
A
μ
A
μ
A
3.5V < V
IN
< 12V
3.5V < V
IN
< 12V
V
SHUTDOWN
= 2.1V, 3.5V < V
IN
< 12V
1.6
160
10
2.4
260
22
mA
μ
A
μ
A
V
8
– V
7
V
SENSE–
= 5V, V
9
= V
OUT
/4 – 25mV (Forced)
V
SENSE–
= 5V, V
9
= V
OUT
/4 + 25mV (Forced)
25
150
25
150
25
150
0.8
5
mV
mV
mV
mV
mV
mV
125
175
LTC1148-3.3, LTC1148HV-3.3, LTC1148L-3.3 V
SENSE–
= V
OUT
+ 100mV (Forced)
V
SENSE–
= V
OUT
– 100mV (Forced)
V
SENSE–
= V
OUT
+ 100mV (Forced)
V
SENSE–
= V
OUT
– 100mV (Forced)
125
175
LTC1148-5, LTC1148HV-5
125
0.55
3.8
175
2
6
V
10
t
OFF
Shutdown Pin Threshold
Off Time (Note 5)
V
C
T
= 390pF, I
LOAD
= 700mA
μ
s
–40
°
C
T
A
85
°
C (Note 5), V
IN
= 10V, unless otherwise noted.
The
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 10V, V
SHUTDOWN
= 0V unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
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