參數(shù)資料
型號： LT3748HMS#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, PDSO12
封裝： LEAD FREE, PLASTIC, MSOP-16/12
文件頁數(shù)： 12/30頁
文件大小： 284K
代理商： LT3748HMS#PBF
LT3748
2
3748fa
ABSOLUTE MAXIMUM RATINGS
VIN, RFB...................................................................100V
VIN to RFB..................................................................±5V
EN/UVLO......................................................–0.3V, 100V
INTVCC....................................................VIN + 0.3V, 20V
SS, VC, TC, RREF..........................................................6V
SENSE......................................................................0.4V
Operating Junction Temperature Range (Note 2)
LT3748E/LT3748I............................... –40°C to 125°C
LT3748H ............................................ –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 10V, unless otherwise noted.
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3748EMS#PBF
LT3748EMS#TRPBF
3748
16-Lead Plastic MSOP
–40°C to 125°C
LT3748IMS#PBF
LT3748IMS#TRPBF
3748
16-Lead Plastic MSOP
–40°C to 125°C
LT3748HMS#PBF
LT3748HMS#TRPBF
3748
16-Lead Plastic MSOP
–40°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is 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/
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
l
5
100
V
Quiescent Current
Not Switching
VEN/UVLO = 0.2V
1.3
0
1.75
1
mA
μA
VIN Quiescent Current, INTVCC Overdriven
VINTVCC = 10V
300
450
μA
INTVCC Voltage Range
l
4.5
20
V
INTVCC Pin Regulation Voltage
6.8
7
7.2
V
INTVCC Dropout
(VIN – VINTVCC), IINTVCC = 10mA, VIN = 5V
0.7
V
INTVCC Undervoltage Lockout
Falling Threshold
l
3.45
3.6
3.75
V
EN/UVLO Pin Threshold
EN/UVLO Pin Voltage Rising
l
1.19
1.223
1.25
V
EN/UVLO Pin Hysteresis Current
EN/UVLO = 1V
1.9
2.4
2.9
μA
Soft-Start Current
VSS = 0.4V (Note 3)
5
μA
Soft-Start Threshold
0.65
V
Soft-Start Reset Current
3mA
Maximum SENSE Current Limit Threshold
VC = 2.2V
l
95
90
100
105
110
mV
Minimum SENSE Current Limit Threshold
VC = 0V
15
mV
(Note 1)
PIN CONFIGURATION
1
3
5
6
7
8
VIN
EN/UVLO
INTVCC
GATE
SENSE
GND
16
14
12
11
10
9
RFB
RREF
TC
VC
SS
GND
TOP VIEW
MS PACKAGE
16 (12)-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 90°C/W
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