LGGQ 데이터 시트보기 (PDF) - Linear Technology
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LGGQ Datasheet PDF : 24 Pages
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LT8614
Absolute Maximum Ratings
(Note 1)
VIN, EN/UV, PG...........................................................42V
BIAS...........................................................................30V
BST Pin Above SW Pin................................................4V
FB, TR/SS, RT, INTVCC ................................................4V
SYNC Voltage ..............................................................6V
Operating Junction Temperature Range (Note 2)
LT8614E.............................................. –40°C to 125°C
LT8614I............................................... –40°C to 125°C
LT8614H............................................. –40°C to 150°C
Storage Temperature Range................... –65°C to 150°C
Pin Configuration
TOP VIEW
20 19 18 17
BIAS 1
INTVCC 2
BST 3
VIN1 4
GND1 6
16 TR/SS
15 RT
14 EN/UV
22
SW
13 VIN2
21
SW
11 GND2
7 8 9 10
UDC PACKAGE
18-LEAD (3mm × 4mm) PLASTIC QFN
θJA = 40°C/W, θJC(PAD) = 12°C/W
EXPOSED PAD (PINS 21, 22) ARE SW, SHOULD BE SOLDERED TO PCB
NOTE: PINS 5, 12 ARE REMOVED. CONFIGURATION DOES NOT MATCH
JEDEC 20-PIN PACKAGE OUTLINE
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT8614EUDC#PBF
LT8614EUDC#TRPBF LGGQ
18-Lead (3mm × 4mm) Plastic QFN
–40°C to 125°C
LT8614IUDC#PBF
LT8614IUDC#TRPBF
LGGQ
18-Lead (3mm × 4mm) Plastic QFN
–40°C to 125°C
LT8614HUDC#PBF
LT8614HUDC#TRPBF LGGQ
18-Lead (3mm × 4mm) Plastic QFN
–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.
Consult LTC Marketing for information on non-standard lead based finish parts.
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 l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
l
2.9
3.4
V
VIN Quiescent Current
VEN/UV = 0V
1.0
3
µA
l
1.0
8
µA
VEN/UV = 2V, Not Switching, VSYNC = 0V
1.7
4
µA
l
1.7
10
µA
VIN Current in Regulation
Feedback Reference Voltage
VEN/UV = 2V, Not Switching, VSYNC = 2V
VOUT = 0.97V, VIN = 6V, Output Load = 100µA
VOUT = 0.97V, VIN = 6V, Output Load = 1mA
VIN = 6V, ILOAD = 0.5A
VIN = 6V, ILOAD = 0.5A
l
l
0.964
l 0.958
0.26
21
210
0.970
0.970
0.5
50
350
0.976
0.982
mA
µA
µA
V
V
8614fb
2
For more information www.linear.com/LT8614
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