LT1961I Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LT1961I Datasheet PDF : 16 Pages
| |||
LT1961
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PI CO FIGURATIO
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
TOP VIEW
VIN 1
SW 2
GND 3
GND 4
8 SYNC
7 VC
6 FB
5 SHDN
MS8E PACKAGE
8-LEAD PLASTIC MSOP
GROUND PAD CONNECTED
TO LARGE COPPER AREA
TJMAX = 125°C, θJA = 50°C/W
UW U
ORDER I FOR ATIO
LEAD FREE FINISH
LT1961EMS8E#PBF
LT1961IMS8E#PBF
LEAD BASED FINISH
LT1961EMS8E
LT1961IMS8E
TAPE AND REEL
LT1961EMS8E#TRPBF
LT1961IMS8E#TRPBF
TAPE AND REEL
LT1961EMS8E#TR
LT1961IMS8E#TR
PART MARKING*
LTQY
LTQY
PART MARKING*
LTQY
LTQY
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
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/
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.
PARAMETER
CONDITION
MIN TYP MAX UNITS
Recommended Operating Voltage
●3
25
V
Maximum Switch Current Limit
● 1.5
2
3
A
Oscillator Frequency
Switch On Voltage Drop
VIN Undervoltage Lockout
VIN Supply Current
VIN Supply Current/ISW
Shutdown Supply Current
3.3V < VIN < 25V
ISW = 1.5A
(Note 3)
ISW = 0A
ISW = 1.5A
VSHDN = 0V, VIN = 25V, VSW = 25V
●1
1.5
MHz
●
310 500
mV
● 2.47
2.6
2.73
V
●
0.9
1.3
mA
27
mA/A
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
1961fa
2
Share Link: 