參數(shù)資料
型號： LT1961IMS8E#TR
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 3 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO8
封裝： PLASTIC, MSOP-8
文件頁數(shù)： 9/16頁
文件大?。?/td> 154K
代理商： LT1961IMS8E#TR
2
LT1961
1961fa
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Input Voltage .......................................................... 25V
Switch Voltage ......................................................... 35V
SHDN Pin ............................................................... 25V
FB Pin Current ....................................................... 1mA
SYNC Pin Current .................................................. 1mA
Operating Junction Temperature Range (Note 2)
LT1961E, LT1961I ........................... – 40
°C to 125°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
(Note 1)
TJMAX = 125°C, θJA = 50°C/W
GROUND PAD CONNECTED
TO LARGE COPPER AREA
1
2
3
4
VIN
SW
GND
8
7
6
5
SYNC
VC
FB
SHDN
TOP VIEW
MS8E PACKAGE
8-LEAD PLASTIC MSOP
PI CO FIGURATIO
UU
U
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
Recommended Operating Voltage
●
325
V
Maximum Switch Current Limit
●
1.5
2
3
A
Oscillator Frequency
3.3V < VIN < 25V
●
1
1.5
MHz
Switch On Voltage Drop
ISW = 1.5A
●
310
500
mV
VIN Undervoltage Lockout
(Note 3)
●
2.47
2.6
2.73
V
VIN Supply Current
ISW = 0A
●
0.9
1.3
mA
VIN Supply Current/ISW
ISW = 1.5A
27
mA/A
Shutdown Supply Current
VSHDN = 0V, VIN = 25V, VSW = 25V
6
20
μA
●
45
μA
Feedback Voltage
3V < VIN < 25V, 0.4V < VC < 0.9V
1.182
1.2
1.218
V
●
1.176
1.224
V
ELECTRICAL CHARACTERISTICS The●denotesthespecificationswhichapplyoverthefulloperatingtemperature
range, otherwise specifications are at TA = 25°C. VIN = 15V, VC = 0.8V, SHDN, SYNC and switch open unless otherwise noted.
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT1961EMS8E#PBF
LT1961EMS8E#TRPBF
LTQY
8-Lead Plastic MSOP
–40
°C to 125°C
LT1961IMS8E#PBF
LT1961IMS8E#TRPBF
LTQY
8-Lead Plastic MSOP
–40
°C to 125°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT1961EMS8E
LT1961EMS8E#TR
LTQY
8-Lead Plastic MSOP
–40
°C to 125°C
LT1961IMS8E
LT1961IMS8E#TR
LTQY
8-Lead Plastic MSOP
–40
°C to 125°C
ORDER I FOR ATIO
UU
W
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
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