Datasheet

LT3593
2
3593f
ABSOLUTE MAXIMUM RATINGS
Input Voltage ...............................................................6V
CTRL Voltage ..............................................................6V
SW Voltage ...............................................................45V
CAP Voltage ..............................................................45V
LED Voltage ..............................................................45V
(Note 1)
TOP VIEW
SW
CAP
LED
V
IN
GND
CTRL
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
4
5
7
6
3
2
1
T
JMAX
= 125°C, θ
JA
= 106°C/W
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
CTRL 1
GND 2
V
IN
3
6 LED
5 CAP
4 SW
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C, θ
JA
= 192°C/W
PIN CONFIGURATION
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range 2.7 5.5 V
Supply Current Not Switching; During Current Programming 300 µA
CTRL = 0 3 10 µA
Switching Frequency 0.85 1 1.15 MHz
Maximum Duty Cycle 92 94 %
Switch Current Limit 550 700 mA
Switch V
CESAT
I
SW
= 250mA 250 mV
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 3.6V, V
CTRL
= 3.6V, unless otherwise specifi ed.
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3593EDC#PBF LT3593EDC#TRPBF LDBR
6-Lead (2mm × 2mm) Plastic DFN
–40°C to 85°C
LT3593ES6#PBF LT3593ES6#TRPBF LTDBS 6-Lead Plastic TSOT-23 –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
Operating Junction Temperature Range
(Note 2) .................................................... –40°C to 85°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
TSOT Package ................................................... 300°C