LTM4623 데이터 시트보기 (PDF) - Linear Technology
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LTM4623 Datasheet PDF : 26 Pages
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LTM4623
Absolute Maximum Ratings
(Note 1)
VIN, SVIN..................................................... –0.3V to 22V
VOUT..................................................–0.3V to SVIN or 6V
RUN........................................................... –0.3V to SVIN
INTVCC....................................................... –0.3V to 3.6V
PGOOD, MODE, TRACK/SS, FREQ,
PHMODE, CLKIN................................... –0.3V to INTVCC
Internal Operating Junction Temperature Range
(Notes 2, 5)............................................. –40°C to 125°C
Storage Temperature Range................... –55°C to 125°C
Peak Solder Reflow Body Temperature.................. 245°C
Pin Configuration
(See Pin Functions, Pin Configuration Table)
TOP VIEW
CLKOUT
CLKIN SVIN
SGND 5
FREQ 4
RUN
3
PHMODE
TRACK/SS
FB
2
COMP 1
VIN
MODE
INTVCC
GND
PGOOD
VOUT
ABCDE
LGA PACKAGE
25-LEAD (6.25mm × 6.25mm × 1.82mm)
TJMAX = 125°C, θJCtop = 17°C/W, θJCbottom = 11°C/W,
θJB + θBA = 22°C/W, θJA = 22°C/W,
θJA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS
θ VALUES DETERMINED PER JESD51-12, WEIGHT = 0.5g
Order Information
PART NUMBER
LTM4623EV#PBF
LTM4623IV#PBF
PAD OR BALL FINISH
Au (RoHS)
Au (RoHS)
PART MARKING*
DEVICE
FINISH CODE
LTM4623V
e4
LTM4623V
e4
PACKAGE
TYPE
LGA
LGA
MSL
RATING
3
3
TEMPERATURE RANGE
(Note 2)
–40°C to 125°C
–40°C to 125°C
Consult Marketing for parts specified with wider operating temperature
ranges. *Device temperature grade is indicated by a label on the shipping
container. Pad or ball finish code is per IPC/JEDEC J-STD-609.
• Pb-free and Non-Pb-free Part Markings:
www.linear.com/leadfree
• Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures:
www.linear.com/umodule/pcbassembly
• LGA and BGA Package and Tray Drawings:
www.linear.com/packaging
Electrical Characteristics The l denotes the specifications which apply over the full internal
operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = SVIN = 12V per the typical application shown on
the front page.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN
VOUT(RANGE)
VOUT(DC)
Input DC Voltage
Output Voltage Range
Output Voltage, Total
Variation with Line and Load
SVIN = VIN
CIN = 22µF, COUT = 100µF Ceramic, RFB = 40.2k,
MODE = INTVCC, IOUT = 0A to 3A (Note 3)
–40°C to 125°C
l4
l 0.6
20
V
5.5
V
l 1.477 1.50 1.523
V
VRUN
IQ(SVIN)
IS(VIN)
IOUT(DC)
RUN Pin On Threshold
Input Supply Bias Current
Input Supply Current
Output Continuous Current
Range
VRUN Rising
VIN = 12V, VOUT = 1.5V, MODE = INTVCC
VIN = 12V, VOUT = 1.5V, MODE = GND
Shutdown, RUN = 0, VIN = 12V
VIN = 12V, VOUT = 1.5V, IOUT = 3A
VIN = 12V, VOUT = 1.5V
1.1 1.2 1.3
V
6
mA
2
mA
11
µA
0.5
A
0
3
A
4623fa
2
For more information www.linear.com/LTM4623
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