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LTC3411A Datasheet(Fiches technique) 2 Page - Linear Technology

Numéro de pièce LTC3411A
Description  1.25A, 4MHz, Synchronous Step-Down DC/DC Converter
Télécharger  20 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
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 2 page
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LTC3411A
2
3411afa
PIN CONFIGURATION
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
PVIN, SVIN Voltages ..................................... –0.3V to 6V
VFB, ITH, SHDN/RT Voltages ..........–0.3V to (VIN + 0.3V)
SYNC/MODE Voltage .....................–0.3V to (VIN + 0.3V)
SW Voltage ..................................–0.3V to (VIN + 0.3V)
PGOOD Voltage ........................................... –0.3V to 6V
(Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Operating Voltage Range
2.5
5.5
V
IFB
Feedback Pin Input Current
(Note 3)
±0.1
μA
VFB
Feedback Voltage
(Note 3)
0.784
0.8
0.816
V
ΔVLINEREG
Reference Voltage Line Regulation
VIN = 2.5V to 5.5V
0.04
0.2
%/V
ΔVLOADREG
Output Voltage Load Regulation
ITH = 0.55V to 0.9V
0.02
0.2
%
gm(EA)
Error Amplifier Transconductance
ITH Pin Load = ±5μA (Note 3)
300
μS
TOP VIEW
11
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
ITH
VFB
PGOOD
SVIN
PVIN
SHDN/RT
SYNC/MODE
SGND
SW
PGND
TJMAX = 125°C, θJA = 43°C/W, θJC = 3°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5
SHDN/RT
SYNC/MODE
SGND
SW
PGND
10
9
8
7
6
ITH
VFB
PGOOD
SVIN
PVIN
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 120°C/W, θJC = 10°C/W
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C, VIN = 3.6V, RT = 125k unless otherwise specified. (Note 2)
Operating Junction Temperature Range
(Notes 2, 5, 8)........................................ –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperatu re (Soldering, 10 sec) ............... 300°C
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3411AEDD#PBF
LTC3411AEDD#TRPBF
LAJM
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3411AIDD#PBF
LTC3411AIDD#TRPBF
LAJM
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3411AEMS#PBF
LTC3411AEMS#TRPBF
LTAJK
10-Lead Plastic MSOP
–40°C to 125°C
LTC3411AIMS#PBF
LTC3411AIMS#TRPBF
LTAJK
10-Lead Plastic MSOP
–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.
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/




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