LTC1702I 查看數據表（PDF） - Linear Technology
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LTC1702I Datasheet PDF : 36 Pages
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LTC1702
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage
VCC ........................................................................ 7V
BOOSTn ............................................................... 15V
BOOSTn – SWn .................................................... 7V
Input Voltage
SWn .......................................................... – 1V to 8V
All Other Inputs ......................... – 0.3V to VCC + 0.3V
Peak Output Current < 10µs
TGn, BGn ............................................................... 5A
Operating Temperature Range
LTC1702C ............................................... 0°C to 70°C
LTC1702I ........................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
PVCC 1
BOOST1 2
BG1 3
TG1 4
SW1 5
IMAX1 6
PGOOD1 7
FCB 8
RUN/SS1 9
COMP1 10
SGND 11
FB1 12
TOP VIEW
24 IMAX2
23 BOOST2
22 BG2
21 TG2
20 SW2
19 PGND
18 PGOOD2
17 FAULT
16 RUN/SS2
15 COMP2
14 FB2
13 VCC
GN PACKAGE
24-LEAD NARROW PLASTIC SSOP
TJMAX = 125°C, θJA = 100°C/ W
ORDER PART NUMBER
LTC1702CGN
LTC1702IGN
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VCC = 5V unless otherwise specified. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX
Main Control Loop
VCC
VCC Supply Voltage
PVCC
PVCC Supply Voltage
BVCC
BOOST Pin Voltage
ICC
VCC Supply Current
(Note 2)
VBOOST – VSW (Note 2)
Test Circuit 1, CL = 0pF
RUN/SS1 = RUN/SS2 = 0V (Note 5)
●
3
7
●
3
7
● 2.7
7
●
2.2
8
●
30
100
IPVCC
PVCC Supply Current
Test Circuit 1, CL = 0pF (Note 4)
●
RUN/SS1 = RUN/SS2 = 0V (Note 5)
●
2.2
6
6
100
IBOOST
BOOST Pin Current
Test Circuit 1, CL = 0pF (Note 4)
●
RUN/SS1 = RUN/SS2 = 0V
●
1.3
3
0.1
10
VFB
∆VFB
IFB
∆VOUT
VFCB
∆VFCB
IFCB
VRUN
ISS
Feedback Voltage
Feedback Voltage Line Regulation
Feedback Current
Output Voltage Load Regulation
FCB Threshold
FCB Feedback Hysteresis
FCB Pin Current
RUN/SS Pin RUN Threshold
Soft-Start Source Current
Test Circuit 1, CL = 0pF, LTC1702C
Test Circuit 1, CL = 0pF, LTC1702I
VCC = 3V to 7V
(Note 6)
RUN/SSn = 0V
● 0.792 0.800 0.808
● 0.790 0.800 0.810
●
±0.005 ±0.05
●
±0.001 ±1
●
0.1
±0.2
● 0.75
0.8
0.85
20
●
±0.001 ±1
● 0.45 0.55 0.65
–2
– 3.5
–6
2
UNITS
V
V
V
mA
µA
mA
µA
mA
µA
V
V
%/V
µA
%
V
mV
µA
V
µA
1702fa
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