LT3513 查看數據表（PDF） - Linear Technology
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LT3513 Datasheet PDF : 20 Pages
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LT3513
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, LDOPWR Voltage ...............................................32V
UVLO Voltage............................................................32V
SW2, SW3, SW4 Voltage ..........................................40V
E3 Pin Voltage...........................................................40V
VON, VONSINK Voltage ................................................40V
PGOOD Voltage.........................................................40V
D4 Voltage ........................................................ 1V, –40V
BOOST Voltage .........................................................37V
BOOST Over SW1 .......................................................8V
SENSE+, SENSE– Voltage..........................................10V
VON_CLK Voltage........................................................10V
BIAS, BD Voltage ......................................................10V
CT Pin Voltage.............................................................5V
RUN-SS1, RUN-SS2, RUN-SS3/4 Voltage ..................5V
FB1, FB2, FB3, FB5 Voltage.........................................5V
NFB4 Voltage ...................................................... 5V, –5V
VC1, VC2, VC3, VC4 Voltage ..........................................5V
Junction Temperature ........................................... 125°C
Operating Temperature Range (Note 2).. –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
FB5 1
VC1 2
RUN-SS3/4 3
FB3 4
RUN-SS2 5
SW3 6
E3 7
VON 8
VONSINK 9
VON_CLK 10
PGOOD 11
VC3 12
38 37 36 35 34 33 32
39
13 14 15 16 17 18 19
31 SENSE+
30 SENSE–
29 BIAS
28 BOOST
27 LDOPWR
26 BD
25 SW4
24 D4
23 NFB4
22 RUN-SS1
21 VC4
20 VC2
UHF PACKAGE
38-LEAD (5mm s 7mm) PLASTIC QFN
TJMAX = 125°C, θJA = 34°C/W, θJC = 1°C/W
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3513EUHF#PBF
LT3513EUHF#TRPBF
3513
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LT3513IUHF#PBF
LT3513IUHF#TRPBF
3513
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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. VIN = 12V, BIAS = 3V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
l
4.5
V
Quiescent Current
RUN-SS1, RUN-SS2, RUN-SS3/4 Pin Current
Not Switching
VRUNSS1 = 0V
RUN-SS1= RUN-SS2 = RUN-SS3
= RUN-SS4 = 0.4V
7.5
12
mA
30
65
μA
2
μA
RUN-SS1, RUN-SS2, RUN-SS3/4 Threshold
0.8
V
BIAS Pin Voltage to Begin RUN-SS2, RUN-SS3/4
l
2.25
2.7
V
BIAS Pin Current
BIAS = 3.1V, All Switches Off
16.5
20
mA
3513fa
2
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