lt3663 Linear Technology Corporation, lt3663 Datasheet - Page 2

• Manufacturer Part Number: lt3663
• Description: 1.2a, 1.5mhz Step-down Switching Regulator With Output Current Limit
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
LT3663
(Note 1)
Input Voltage (V
BOOST Pin Voltage ...................................................50V
BOOST Pin Above SW Pin .........................................25V
V
RUN Pin (Note 2) ......................................................60V
Operating Junction Temperature Range (Note 3)
Storage Temperature .............................. –65°C to 150°C
ORDER INFORMATION
LEAD FREE FINISH
LT3663EDCB#PBF
LT3663IDCB#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
PARAMETER
V
V
V
V
V
V
Run Input Voltage High
Run Input Voltage Low
Run Pin Bias Current
V
V
Operating Frequency
Maximum Duty Cycle
Feedback Voltage
temperature range, otherwise specifi cations are at T
2
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
LT3663E ............................................. –40°C to 125°C
LT3663I .............................................. –40°C to 125°C
Undervoltage Lockout
Undervoltage Lockout Hysteresis
Overvoltage Lockout
Overvoltage Lockout Hysteresis
Supply Current
Supply Current in Shutdown
Current Limit Range
Current Limit
, I
SENSE
, FB Pins ..................................................6V
IN
) (Note 2) ......................................60V
TAPE AND REEL
LT3663EDCB#TRPBF
LT3663IDCB#TRPBF
http://www.linear.com/leadfree/
CONDITIONS
Rising
Rising
Not Switching
V
V
V
PART MARKING*
LDVK
LDVK
RUN
RUN
RUN
http://www.linear.com/tapeandreel/
A
= 25°C. V
= 0V
= 2.3V (Note4)
= 0V
The
l
IN
denotes the specifi cations which apply over the full operating
= 12V, V
PIN CONFIGURATION
BOOST
PACKAGE DESCRIPTION
8-Lead (2mm × 3mm) Plastic DFN
8-Lead (2mm × 3mm) Plastic DFN
= 17V, V
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
RUN
I
V
LIM
SW
FB
8-LEAD (2mm 3mm) PLASTIC DFN
IN
l
l
l
l
l
l
= 0V, R
1
2
3
4
1350
DCB PACKAGE
MIN
784
θ
2.5
0.4
0.8
36
80
TOP VIEW
JA
ILIM
= 64°C/W
9
= 36.5k unless otherwise noted.
1500
0.01
0.01
TYP
500
800
2.4
39
92
7
1
6
1
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
8
7
6
5
SW
BOOST
I
V
SENSE
OUT
1650
MAX
816
7.5
3.2
0.3
0.1
1.2
1.2
41
15
2
UNITS
3663fa
kHz
mV
mA
mV
μA
μA
μA
%
V
V
V
V
V
A
A