參數資料
型號： LTC3890IGN-1#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, PDSO28
封裝： LEAD FREE, PLASTIC, SSOP-28
文件頁數： 12/36頁
文件大?。?/td> 498K
代理商： LTC3890IGN-1#TRPBF
LTC3890-1
2
38901f
ABSOLUTE MAXIMUM RATINGS
(Note 1)
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3890EGN-1#PBF
LTC3890EGN-1#TRPBF
LTC3890GN-1
28-Lead Plastic SSOP
–40°C to 125°C
LTC3890IGN-1#PBF
LTC3890IGN-1#TRPBF
LTC3890GN-1
28-Lead Plastic SSOP
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
Input Supply Voltage (VIN)......................... –0.3V to 65V
Topside Driver Voltages
BOOST1, BOOST2 ................................. –0.3V to 71V
Switch Voltage (SW1, SW2) ........................ –5V to 65V
(BOOST1-SW1), (BOOST2-SW2) ................ –0.3V to 6V
RUN1, RUN2 ............................................... –0.3V to 8V
Maximum Current Sourced into Pin from
Source >8V .......................................................100μA
SENSE1+, SENSE2+, SENSE1–
SENSE2– Voltages...................................... –0.3V to 28V
PLLIN/MODE, FREQ Voltages .............. –0.3V to INTVCC
EXTVCC ...................................................... –0.3V to 14V
ITH1, ITH2, VFB1, VFB2 Voltages................... –0.3V to 6V
PGOOD1 Voltage ......................................... –0.3V to 6V
TRACK/SS1, TRACK/SS2 Voltages .............. –0.3V to 6V
Operating Junction Temperature Range
(Note 2) ................................................. –40°C to 125°C
Maximum Junction Temperature (Note 3) ............ 125°C
Storage Temperature Range................... –65°C to 150°C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Supply Operating Voltage Range
4
60
V
VFB1,2
Regulated Feedback Voltage
ITH1,2 Voltage = 1.2V (Note 4)
–40°C to 125°C
–40°C to 85°C
l
0.788
0.792
0.800
0.812
0.808
V
IFB1,2
Feedback Current
(Note 4)
±5
±50
nA
VREFLNREG
Reference Voltage Line Regulation
VIN = 4.5V to 60V (Note 4)
0.002
0.02
%/V
VLOADREG
Output Voltage Load Regulation
(Note4)
Measured in Servo Loop,
ΔITH Voltage = 1.2V to 0.7V
l
0.01
0.1
%
(Note4)
Measured in Servo Loop,
ΔITH Voltage = 1.2V to 2V
l
–0.01
–0.1
%
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ITH1
VFB1
SENSE1+
SENSE1–
FREQ
PLLIN/MODE
SGND
RUN1
RUN2
SENSE2–
SENSE2+
VFB2
ITH2
TRACK/SS2
TRACK/SS1
PGOOD1
TG1
SW1
BOOST1
BG1
VIN
PGND
EXTVCC
INTVCC
BG2
BOOST2
SW2
TG2
TJMAX = 125°C, θJA = 90°C/W
PIN CONFIGURATION
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
junction temperature range, otherwise specications are at TJ = 25°C. VIN = 12V, VRUN1,2 = 5V, EXTVCC = 0V unless otherwise noted.
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相關代理商/技術參數
參數描述
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