參數(shù)資料
型號(hào): LTC1737
廠商: Linear Technology Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 抗輻射高效,5安培開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù): 2/32頁(yè)
文件大?。?/td> 1975K
代理商: LTC1737
LTC4267
2
4267f
ABSOLUTE
(Note 1)
AXW
W
RATIU
W
FOW
PACKAGE/ORDER IU
U
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
V
PORTN
with Respect to V
PORTP
Voltage ..0.3V to –100V
P
OUT
, SIGDISA,
P
W
R
G
D
Voltage ....................V
PORTN
+ 100V to V
PORTN
–0.3V
P
VCC
to PGND Voltage (Note 2)
Low Impedance Source ...........................–0.3V to 8V
Current Fed ..........................................5mA into P
VCC
R
CLASS
Voltage .................V
PORTN
+ 7V to V
PORTN
– 0.3V
P
W
R
G
D Current .....................................................10mA
R
CLASS
Current ....................................................100mA
NGATE to PGND Voltage ...........................–0.3V to P
VCC
V
FB
, I
TH
/RUN to PGND Voltages ................–0.3V to 3.5V
ORDER PART
NUMBER
LTC4267CDHC
LTC4267IDHC
DFN PART*
MARKING
4267
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grades are identified by a label on the shipping container.
The
denotes the specifications which apply over the full operating
SYMBOL
V
PORTN
V
TURNON
V
TURNOFF
V
HYST
V
CLAMP1mA
PARAMETER
Supply Voltage
Maximum Operating Voltage
Signature Range
Classification Range
UVLO Turn-On Voltage
UVLO Turn-Off Voltage
P
VCC
Turn-On Voltage
P
VCC
Turn-Off Voltage
P
VCC
Hysteresis
P
VCC
Shunt Regulator Voltage
CONDITIONS
Voltage with Respect to V
PORTP
Pin
(Notes 4, 5, 6)
Voltage with Respect to PGND
Voltage with Respect to PGND
V
TURNON
– V
TURNOFF
I
PVCC
= 1mA, V
ITH
/RUN = 0V, Voltage
with Respect to PGND
MIN
–1.5
–12.5
–34.8
–29.3
7.8
4.6
1.5
8.3
TYP
–36.0
–30.5
8.7
5.7
3.0
9.4
MAX
–57
–9.5
–21
–37.2
–31.5
9.2
6.8
10.3
UNITS
V
V
V
V
V
V
V
V
V
SENSE to PGND Voltage ..............................–0.3V to 1V
NGATE Peak Output Current (<10μs) ..........................1A
Operating Ambient Temperature Range
LTC4267C ................................................0°C to 70°C
LTC4267I .............................................–40°C to 85°C
Junction Temperature
GN Package ......................................................150°C
DHC Package ....................................................125°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................300°C
ORDER PART
NUMBER
GN PART
MARKING
4267
4267I
LTC4267CGN
LTC4267IGN
T
JMAX
= 125°C,
θ
= 43.5°C/W
EXPOSED PAD (PIN 17)
MUST BE SOLDERED TO ELECTRICALLY
ISOLATED PCB HEAT SINK
T
JMAX
= 150°C,
θ
JA
= 90°C/W
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
TOP VIEW
DHC16 PACKAGE
16-LEAD (3mm
×
5mm) PLASTIC DFN
I
TH
/RUN
PGND
NGATE
P
VCC
R
CLASS
NC
V
PORTN
NC
V
FB
PGND
SENSE
V
PORTP
SIGDISA
PWRGD
P
OUT
NC
TOP VIEW
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PGND
I
TH
/RUN
NGATE
P
VCC
R
CLASS
NC
V
PORTN
PGND
PGND
V
FB
SENSE
V
PORTP
SIGDISA
PWRGD
P
OUT
PGND
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