LTC3728LIGN-1 查看數據表（PDF） - Linear Technology
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LTC3728LIGN-1 Datasheet PDF : 32 Pages
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LTC3728L-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) .........................30V to – 0.3V
Input Supply Voltage (VIN) LTC3728LI-1....35V to – 0.3V
Top Side Driver Voltages
(BOOST1, BOOST2) ............................... 36V to –0.3V
(BOOST1, BOOST2) LTC3728LI-1.......... 38V to –0.3V
Switch Voltage (SW1, SW2) ........................... 30V to –5V
Switch Voltage (SW1, SW2) LTC3728LI-1... 35V to –0.3V
INTVCC, EXTVCC, RUN/SS1, RUN/SS2, (BOOST1-SW1),
(BOOST2-SW2), PGOOD ......................... 7V to –0.3V
INTVCC, EXTVCC LTC3728LI-1....................... 8V to –0.3V
SENSE1+, SENSE2+, SENSE1–,
SENSE2– Voltages .....................(1.1)INTVCC to –0.3V
PLLIN, PLLFLTR, FCB, Voltage.............. INTVCC to –0.3V
ITH1, ITH2, VOSENSE1, VOSENSE2 Voltages .... 2.7V to –0.3V
Peak Output Current <10μs (TG1, TG2, BG1, BG2).....3A
INTVCC Peak Output Current ..................................40mA
Operating Temperature Range (Note 7).... –40°C to 85°C
Junction Temperature (Note 2) ............................. 125°C
Storage Temperature Range................... –65°C to 125°C
Reflow Peak Body Temperature (UH Package)...... 260°C
Lead Temperature (Soldering, 10 sec)
GN Package ...................................................... 300°C
PIN CONFIGURATION
RUN/SS1 1
SENSE1+ 2
SENSE– 3
VOSENSE1 4
PLLFLTR 5
PLLIN 6
FCB 7
ITH1 8
SGND 9
3.3VOUT 10
ITH2 11
VOSENSE2 12
SENSE2– 13
SENSE2+ 14
TOP VIEW
28 PGOOD
27 TG1
26 SW1
25 BOOST1
24 VIN
23 BG1
22 EXTVCC
21 INTVCC
20 PGND
19 BG2
18 BOOST2
17 SW2
16 TG2
15 RUN/SS2
GN PACKAGE
28-LEAD NARROW PLASTIC SSOP
TJMAX = 125°C, θJA = 95°C/W
TOP VIEW
32 31 30 29 28 27 26 25
VOSENSE1 1
PLLFLTR 2
PLLIN 3
24 BOOST1
23 VIN
22 BG1
FCB 4
ITH1 5
SGND 6
21 EXTVCC
33
20 INTVCC
19 PGND
3.3VOUT 7
ITH2 8
18 BG2
17 BOOST2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm s 5mm) PLASTIC QFN
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3728LEGN-1#PBF
LTC3728LEGN-1#TRPBF LTC3728LEGN-1
28-Lead Narrow Plastic SSOP
LTC3728LIGN-1#PBF
LTC3728LIGN-1#TRPBF LTC3728LIGN-1
28-Lead Narrow Plastic SSOP
LTC3728LEUH-1#PBF
LTC3728LEUH-1#TRPBF 728LE1
32-Lead (5mm × 5mm) Plastic DFN
LTC3728LIUH-1#PBF
LTC3728LIUH-1#TRPBF 3728L1
32-Lead (5mm × 5mm) Plastic DFN
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3728LEGN-1
LTC3728LEGN-1#TR
LTC3728LEGN-1
28-Lead Narrow Plastic SSOP
LTC3728LIGN-1
LTC3728LIGN-1#TR
LTC3728LIGN-1
28-Lead Narrow Plastic SSOP
LTC3728LEUH-1
LTC3728LEUH-1#TR
728LE1
32-Lead (5mm × 5mm) Plastic DFN
LTC3728LIUH-1
LTC3728LIUH-1#TR
3728L1
32-Lead (5mm × 5mm) Plastic DFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
2
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
3728l1fc
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