LT3572E Просмотр технического описания (PDF) - Linear Technology
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LT3572E Datasheet PDF : 12 Pages
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LT3572
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VOUT Voltage .............................................................40V
OUTA, OUTA, OUTB, OUTB Voltage...........................40V
SW Voltage ...............................................................42V
RT, SS, SYNC ..............................................................2V
FB ...............................................................................3V
All Other Pins ............................................................10V
Maximum Junction Temperature........................... 125°C
Operating Temperature Range (Note 2).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
SW 1
VIN 2
SYNC 3
RT 4
GND 5
20 19 18 17 16
15 PGOOD
14 SS
21
13 FB
12 SHDNB
11 SHDNA
6 7 8 9 10
UF PACKAGE
20-LEAD (4mm s 4mm) PLASTIC QFN
TJMAX = 125°C, θJA = 37°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LT3572EUF#PBF
LT3572EUF#TRPBF
3572
20-Lead (4mm × 4mm) Plastic DFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
TEMPERATURE RANGE
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VSHDNA= VSHDNB = VSHDN = 5V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Minimum Operating Voltage
●
2.5
2.7
V
VIN Quiescent Current
VIN Shutdown Current
SHDN Pin Threshold
SHDNA Pin Threshold
SHDNB Pin Threshold
SHDN Pin Bias Current
SHDNA Pin Bias Current
SHDNB Pin Bias Current
VFB = 1.3V
VSHDN = VSHDNA = VSHDNB = 0V
VSHDN = 5V, VSHDNA = 0V, VSHDNB = 0V
VSHDN = 0V, VSHDNA = 0V, VSHDNB = 0V
VSHDN = 0V, VSHDNA = 5V, VSHDNB = 0V
VSHDN = 0V, VSHDNA = 0V, VSHDNB = 0V
VSHDN = 0V, VSHDNA = 0V, VSHDNB = 5V
VSHDN= 0V, VSHDNA = 0V, VSHDNB = 0V
3.4
4
mA
0
1
μA
0.3
1.5
V
0.3
1.5
V
0.3
1.5
V
8
15
μA
0.1
1
μA
8
15
μA
0.1
1
μA
8
15
μA
0.1
1
μA
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2
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