EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
MSE PACKAGE
10-LEAD PLASTIC MSOP
JA
= 45°C/W,
JC
= 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3480EDD#PBF
LT3480IDD#PBF
LT3480EMSE#PBF
LT3480IMSE#PBF
LT3480HMSE#PBF
LT3480MPMSE#PBF
LEAD BASED FINISH
LT3480EDD
LT3480IDD
LT3480EMSE
LT3480IMSE
LT3480HMSE
LT3480MPMSE
TAPE AND REEL
LT3480EDD#TRPBF
LT3480IDD#TRPBF
LT3480EMSE#TRPBF
LT3480IMSE#TRPBF
LT3480HMSE#TRPBF
LT3480MPMSE#TRPBF
TAPE AND REEL
LT3480EDD#TR
LT3480IDD#TR
LT3480EMSE#TR
LT3480IMSE#TR
LT3480HMSE#TR
LT3480MPMSE#TR
PART MARKING*
LCTP
LCTP
LTCTM
LTCTM
LTCTM
LTCTM
PART MARKING*
LCTP
LCTP
LTCTM
LTCTM
LTCTM
LTCTM
PACKAGE DESCRIPTION
10-Lead (3mm
×
3mm) Plastic DFN
10-Lead (3mm
×
3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
PACKAGE DESCRIPTION
10-Lead (3mm
×
3mm) Plastic DFN
10-Lead (3mm
×
3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
3480fe
2
For more information
www.linear.com/LT3480
LT3480
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Input Voltage
V
IN
Overvoltage Lockout
Quiescent Current from V
IN
Quiescent Current from BD
V
RUN/SS
= 0.2V
V
BD
= 3V, Not Switching
V
BD
= 0, Not Switching
V
RUN/SS
= 0.2V
V
BD
= 3V, Not Switching
V
BD
= 0, Not Switching
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V V
RUN/SS
= 10V V
BOOST
= 15V V
BD
= 3.3V unless otherwise noted. (Note 2)
,
,
,
CONDITIONS
l
l
l
MIN
36
TYP
3
38
0.01
30
105
0.01
80
1
2.7
MAX
3.6
40
0.5
100
160
0.5
120
5
3
800
805
30
0.01
UNITS
V
V
µA
µA
µA
µA
µA
µA
V
mV
mV
nA
%/V
µMho
µA
µA
A/V
V
l
Minimum Bias Voltage (BD Pin)
Feedback Voltage
l
780
775
790
790
7
0.002
400
1000
45
45
3.5
2
FB Pin Bias Current (Note 3)
FB Voltage Line Regulation
Error Amp g
m
Error Amp Gain
V
C
Source Current
V
C
Sink Current
V
C
Pin to Switch Current Gain
V
C
Clamp Voltage
Switching Frequency
V
FB
= 0.8V, V
C
= 0.4V
4V < V
IN
< 36V
l
R
T
= 8.66k
R
T
= 29.4k
R
T
= 187k
l
2.1
0.9
160
3
2.4
1
200
60
3.5
500
0.02
2.7
1.15
240
150
4
2
2.1
35
10
2.5
MHz
MHz
kHz
nS
A
mV
µA
V
mA
µA
V
V
mV
mV
Minimum Switch Off-Time
Switch Current Limit
Switch V
CESAT
Boost Schottky Reverse Leakage
Minimum Boost Voltage (Note 4)
BOOST Pin Current
RUN/SS Pin Current
RUN/SS Input Voltage High
RUN/SS Input Voltage Low
PG Threshold Offset from Feedback Voltage
PG Hysteresis
PG Leakage
PG Sink Current
SYNC Low Threshold
SYNC High Threshold
SYNC Pin Bias Current
V
SYNC
= 0V
V
PG
= 5V
V
PG
= 0.4V
V
FB
Rising
I
SW
= 1A
V
RUN/SS
= 2.5V
Duty Cycle = 5%
I
SW
= 2A
V
BD
= 0V
l
1.5
22
5
0.2
100
12
0.1
1
µA
µA
V
l
100
0.5
600
0.7
0.1
V
µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT3480E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT3480I specifications are
3480fe
For more information
www.linear.com/LT3480
3
LT3480
ELECTRICAL CHARACTERISTICS
guaranteed over the –40°C to 125°C temperature range. The LT3480H
specifications are guaranteed over the –40°C to 150°C temperature range.
The LT3480MP specifications are guaranteed over the –55°C to 150°C
temperature range.
Note 3:
Bias current flows out of the FB pin.
Note 4:
This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
Note 5:
For operation at T
J
≤ 125°C, the absolute maximum voltage at V
IN
and RUN/SS pins is 40V for continuous operation and 60V for up to
1 second nonrepetitive transients. For operation at T
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