Datasheet

LTC3542
2
3542fa
ELECTRICAL CHARACTERISTICS
Input Supply Voltage (V
IN
) ........................... –0.3V to 6V
V
FB
, RUN Voltages .......................................–0.3V to V
IN
MODE Voltage ................................–0.3V to (V
IN
+ 0.3V)
SW Voltage ....................................–0.3V to (V
IN
+ 0.3V)
Operating Temperature Range (Note 2)
LTC3542E ............................................ –40°C to 85°C
LTC3542I ........................................... –40°C to 125°C
The ● 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 unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Operating Voltage Range
●
2.5 5.5 V
I
FB
Feedback Input Current ±30 nA
V
FB
Feedback Voltage (Note 4)
●
0.588 0.6 0.612 V
ΔV
LINE_REG
Reference Voltage Line Regulation (Note 4) V
IN
= 2.5V to 5.5V 0.04 0.2 %/V
ΔV
LOAD_REG
Output Voltage Load Regulation (Note 4) I
LOAD
= 100mA to 500mA 0.02 0.2 %
Junction Temperature (Note 7) ............................. 125°C
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
TSOT-23 ............................................................ 300°C
Refl ow Peak Body Temperature (DFN) .................. 260°C
ABSOLUTE MAXIMUM RATINGS
(Note 1)
TOP VIEW
RUN
SW
V
FB
V
IN
GND
DC PACKAGE
6-LEAD (2mm × 2mm) PLASTIC DFN
4
5
7
6
3
2
1
MODE
/
SYNC
T
JMAX
= 125°C, θ
JA
= 102°C/W, θ
JC
= 20°C/W (SOLDERED TO A 4-LAYER BOARD, NOTE 3)
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
V
IN
1
GND 2
V
FB
3
6 SW
5 MODE/SYNC
4 RUN
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C, θ
JA
= 215°C/W
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3542EDC#PBF LTC3542EDC#TRPBF LCFR 6-Lead (2mm × 2mm) Plastic DFN –40°C to 85°C
LTC3542IDC#PBF LTC3542IDC#TRPBF LCFR 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C
LTC3542ES6#PBF LTC3542ES6#TRPBF LCFS 6-Lead Plastic TSOT-23 –40°C to 85°C
LTC3542IS6#PBF LTC3542IS6#TRPBF LCFS 6-Lead Plastic TSOT-23 –40°C to 125°C
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: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/