LTC1702IGN#TR Linear Technology, LTC1702IGN#TR Datasheet - Page 2

• Manufacturer Part Number: LTC1702IGN#TR
• Description: IC REG SW DUAL SYNC 2PH 24SSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC1702IGN#TR

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Current - Output: 1A, 25A
• Frequency - Switching: 550kHz
• Voltage - Input: 3 ~ 7 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -
• Power - Output: -

ABSOLUTE
(Note 1)
Supply Voltage
Input Voltage
Peak Output Current < 10µs
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
∆V
I
∆V
V
∆V
I
V
I
temperature range, otherwise specifications are T A = 25°C. V
2
CC
BOOST
FB
FCB
SS
CC
FB
FCB
RUN
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
CC
........................................................................ 7V
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
The
= 3V to 7V
CC
– V
●
= 5V unless otherwise specified. (Note 3)
denotes specifications which apply over the full operating
SW
(Note 2)
L
L
L
L
L
PACKAGE/ORDER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
= 0pF
= 0pF (Note 4)
= 0pF (Note 4)
= 0pF, LTC1702C
= 0pF, LTC1702I
RUN/SS1
PGOOD1
BOOST1
COMP1
I
SGND
ORDER PART NUMBER
PV
MAX1
SW1
BG1
TG1
FCB
FB1
24-LEAD NARROW PLASTIC SSOP
CC
T
http://www.linear.com/leadfree/
JMAX
10
11
12
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1
2
3
4
5
6
7
8
9
LTC1702CGN
LTC1702IGN
= 125°C, θ
GN PACKAGE
TOP VIEW
0.792
0.790
0.75
0.45
MIN
2.7
– 2
3
3
JA
INFORMATION
= 100°C/ W
U
±0.005
±0.001
±0.001
24
23
22
21
20
19
18
17
16
15
14
13
0.800
0.800
– 3.5
0.55
TYP
2.2
2.2
1.3
0.1
0.1
0.8
30
20
6
I
BOOST2
BG2
TG2
SW2
PGND
PGOOD2
FAULT
RUN/SS2
COMP2
FB2
V
MAX2
CC
W
0.808
0.810
±0.05
MAX
±0.2
0.85
0.65
100
100
±1
±1
– 6
10
7
7
7
8
6
3
UNITS
U
1702fa
%/V
mA
mA
mA
mV
µA
µA
µA
µA
µA
µA
%
V
V
V
V
V
V
V