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參數(shù)資料
| 型號： | LT3493EDCB#TRM |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.2 A SWITCHING REGULATOR, 815 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | 2 X 3 MM, PLASTIC, MO-229, DFN-6 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 588K |
| 代理商： | LT3493EDCB#TRM |
LT3493
2
3493fb
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(Note 1)
TOP VIEW
SHDN
VIN
SW
FB
GND
BOOST
DCB PACKAGE
6-LEAD (2mm
3mm) PLASTIC DFN
4
5
7
6
3
2
1
TJMAX = 125°C, θJA = 64°C/W
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 12V, VBOOST = 17V, unless otherwise noted. (Note 2)
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3493EDCB#PBF
LT3493EDCB#TRPBF
LCGG
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 85°C
LT3493IDCB#PBF
LT3493IDCB#TRPBF
LCGH
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3493EDCB
LT3493EDCB#TR
LCGG
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 85°C
LT3493IDCB
LT3493IDCB#TR
LCGH
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
Input Voltage (VIN)....................................................40V
BOOST Pin Voltage ..................................................50V
BOOST Pin Above SW Pin.........................................25V
SHDN Pin..................................................................40V
FB Voltage...................................................................6V
Operating Temperature Range (Note 2)
LT3493E .............................................. –40°C to 85°C
LT3493I ............................................. –40°C to 125°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range................... –65°C to 150°C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN Operating Range
3.6
36
V
Undervoltage Lockout
3.1
3.4
3.6
V
Feedback Voltage
l
765
780
795
mV
FB Pin Bias Current
VFB = Measured VREF + 10mV (Note 4)
l
50
150
nA
Quiescent Current
Not Switching
1.9
2.5
mA
Quiescent Current in Shutdown
VSHDN = 0V
0.01
2
μA
Reference Line Regulation
VIN = 5V to 36V
0.007
%/V
Switching Frequency
VFB = 0.7V
VFB = 0V
685
750
36
815
kHz
Maximum Duty Cycle
TA = 25°C
l
88
91
95
%
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