LTC1702 Linear Technology, LTC1702 Datasheet - Page 2

• Manufacturer Part Number: LTC1702
• Description: Dual 550kHz Synchronous 2-Phase Switching Regulator Controller
• Manufacturer: Linear Technology

ABSOLUTE
(Note 1)
Supply Voltage
Input Voltage
Peak Output Current < 10 s
Operating Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
LTC1702
ELECTRICAL CHARACTERISTICS
SYMBOL
Main Control Loop
V
PV
BV
I
IPV
I
V
I
V
I
V
I
The
V
2
CC
BOOST
FB
FCB
SS
CC
FB
FCB
RUN
CC
V
V
V
CC
CC
FB
OUT
FCB
V
BOOST n ............................................................... 15V
BOOST n – SW n .................................................... 7V
SW n .......................................................... – 1V to 8V
All Other Inputs ......................... – 0.3V to V
TG n , BG n ............................................................... 5A
LTC1702C ............................................... 0 C to 70 C
LTC1702I ........................................... – 40 C to 85 C
CC
= 5V unless otherwise specified. (Note 3)
CC ...........................................................................................
denotes specifications which apply over the full operating temperature range, otherwise specifications are T A = 25 C.
PARAMETER
V
PV
BOOST Pin Voltage
V
PV
BOOST Pin Current
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
CC
CC
CC
CC
Supply Voltage
Supply Current
Supply Voltage
Supply Current
W
MAXIMUM
W W
RATINGS
U
CC
CONDITIONS
(Note 2)
V
Test Circuit 1, C
RUN/SS1 = RUN/SS2 = 0V (Note 5)
Test Circuit 1, C
RUN/SS1 = RUN/SS2 = 0V (Note 5)
Test Circuit 1, C
RUN/SS1 = RUN/SS2 = 0V
Test Circuit 1, C
Test Circuit 1, C
V
(Note 6)
RUN/SS n = 0V
BOOST
CC
+ 0.3V
= 3V to 7V
7V
– V
SW
(Note 2)
L
L
L
L
L
PACKAGE/ORDER
Consult factory for Military grade parts.
= 0pF
= 0pF (Note 4)
= 0pF (Note 4)
= 0pF, LTC1702C
= 0pF, LTC1702I
RUN/SS1
PGOOD1
BOOST1
COMP1
I
SGND
PV
MAX1
SW1
BG1
TG1
FCB
FB1
24-LEAD NARROW PLASTIC SSOP
CC
T
JMAX
10
11
12
1
2
3
4
5
6
7
8
9
= 125 C,
GN PACKAGE
TOP VIEW
JA
= 100 C/ W
24
23
22
21
20
19
18
17
16
15
14
13
I
BOOST2
BG2
TG2
SW2
PGND
PGOOD2
FAULT
RUN/SS2
COMP2
FB2
V
MAX2
0.792
0.790
CC
0.75
0.45
MIN
2.7
– 2
3
3
INFORMATION
U
0.800
0.800
– 3.5
0.55
TYP
0.005
0.001
0.001
2.2
2.2
1.3
0.1
0.1
0.8
30
20
6
LTC1702CGN
LTC1702IGN
ORDER PART
NUMBER
W
0.808
0.810
MAX
0.85
0.65
100
100
0.05
– 6
10
0.2
7
7
7
8
6
3
1
1
UNITS
U
%/V
mA
mA
mA
mV
%
V
V
V
A
A
A
V
V
A
V
A
V
A