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LTC3542_15 Datasheet, PDF (2/16 Pages) Linear Technology – 500mA, 2.25MHz Synchronous Step-Down DC/DC Converter | |||
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LTC3542
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ........................... â0.3V to 6V
VFB, RUN Voltages .......................................â0.3V to VIN
MODE Voltage................................â0.3V to (VIN + 0.3V)
SW Voltage ....................................â0.3V to (VIN + 0.3V)
Operating Temperature Range (Note 2)
LTC3542E ............................................ â40°C to 85°C
LTC3542I ........................................... â40°C to 125°C
Junction Temperature (Note 7) ............................. 125°C
Storage Temperature Range................... â65°C to 150°C
Lead Temperature (Soldering, 10 sec)
TSOT-23............................................................ 300°C
Reï¬ow Peak Body Temperature (DFN) .................. 260°C
PIN CONFIGURATION
TOP VIEW
VFB 1
6 RUN
VIN 2
7
5
MODE/
SYNC
GND 3
4 SW
DC PACKAGE
6-LEAD (2mm à 2mm) PLASTIC DFN
TJMAX = 125°C, θJA = 102°C/W, θJC = 20°C/W (SOLDERED TO A 4-LAYER BOARD, NOTE 3)
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
VIN 1
GND 2
VFB 3
6 SW
5 MODE/SYNC
4 RUN
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
TJMAX = 125°C, θJA = 215°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3542EDC#PBF
LTC3542EDC#TRPBF
LCFR
6-Lead (2mm à 2mm) Plastic DFN
â40°C to 85°C
LTC3542IDC#PBF
LTC3542IDC#TRPBF
LCFR
6-Lead (2mm à 2mm) Plastic DFN
â40°C to 125°C
LTC3542ES6#PBF
LTC3542ES6#TRPBF
LCFS
6-Lead Plastic TSOT-23
â40°C to 85°C
LTC3542IS6#PBF
LTC3542IS6#TRPBF
LCFS
6-Lead Plastic TSOT-23
â40°C to 125°C
Consult LTC Marketing for parts speciï¬ed with wider operating temperature ranges. *The temperature grade is identiï¬ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ï¬nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speciï¬cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The â denotes the speciï¬cations which apply over the full operating
temperature range, otherwise speciï¬cations are at TA = 25°C. VIN = 3.6V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN
IFB
VFB
ÎVLINE_REG
ÎVLOAD_REG
Operating Voltage Range
Feedback Input Current
Feedback Voltage (Note 4)
Reference Voltage Line Regulation (Note 4) VIN = 2.5V to 5.5V
Output Voltage Load Regulation (Note 4) ILOAD = 100mA to 500mA
â 2.5
5.5
V
±30
nA
â 0.588 0.6 0.612
V
0.04
0.2
%/V
0.02
0.2
%
3542fa
2
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