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LTC4444-5 Scheda tecnica(PDF) 2 Page - Linear Technology

Il numero della parte LTC4444-5
Spiegazioni elettronici  High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
PDF  28 Pages
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

LTC4444-5 Scheda tecnica(HTML) 2 Page - Linear Technology

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LTC3780
2
3780fe
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage (VIN)........................ –0.3V to 36V
Topside Driver Voltages
(BOOST1, BOOST2) .................................. –0.3V to 42V
Switch Voltage (SW1, SW2) ........................ –5V to 36V
INTVCC, EXTVCC, (BOOST – SW1),
(BOOST2 – SW2), PGOOD .......................... –0.3V to 7V
RUN, SS....................................................... –0.3V to 6V
PLLIN Voltage .......................................... –0.3V to 5.5V
PLLFLTR Voltage....................................... –0.3V to 2.7V
FCB, STBYMD Voltages........................ –0.3V to INTVCC
ITH, VOSENSE Voltages .............................. –0.3V to 2.4V
(Note 1)
Peak Output Current <10μs (TG1, TG2, BG1, BG2).....3A
INTVCC Peak Output Current ................................. 40mA
Operating Junction Temperature Range (Notes 5, 2, 7)
LTC3780E............................................. –40°C to 85°C
LTC3780I............................................ –40°C to 125°C
LTC3780MP ....................................... –55°C to 125°C
Junction Temperature (Note 2) ............................ 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
SSOP Only ........................................................ 300°C
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
G PACKAGE
24-LEAD PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
PGOOD
SS
SENSE+
SENSE–
ITH
VOSENSE
SGND
RUN
FCB
PLLFLTR
PLLIN
STBYMD
BOOST1
TG1
SW1
VIN
EXTVCC
INTVCC
BG1
PGND
BG2
SW2
TG2
BOOST2
TJMAX = 125°C, θJA = 130°C/W
32 31 30 29 28 27 26 25
9
10 11 12
TOP VIEW
33
UH PACKAGE
32-LEAD (5mm
5mm) PLASTIC QFN
13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1
SENSE+
SENSE–
ITH
VOSENSE
SGND
RUN
FCB
PLLFTR
SW1
VIN
EXTVCC
INTVCC
BG1
PGND
BG2
SW2
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION



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