LTC3548A Datasheet, PDF (2/20 Pages) Linear Technology – Dual Synchronous 400mA/800mA, 2.25MHz Step-Down DC/DC Regulator

LTC3548A
ABSOLUTE MAXIMUM RATINGS (Note 1)
V_IN Voltage...................................................– 0.3V to 6V
V_FB1, V_FB2 Voltages ................................... –0.3V to 1.5V
RUN/SS1, RUN/SS2 Voltages ...........–0.3V to V_IN + 0.3V
MODE/SYNC Voltage.........................–0.3V to V_IN + 0.3V
SW1, SW2 Voltages......................... –0.3V to V_IN + 0.3V
POR Voltage................................................. –0.3V to 6V
Operating Junction Temperature Range (Note 2)
LTC3548AE .......................................... –40°C to 85°C
LTC3548AI ......................................... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MSOP ............................................................... 300°C
PIN CONFIGURATION
TOP VIEW
V_FB1 1
RUN/SS1 2
V_IN 3
SW1 4
NC 5
10 V_FB2
9 RUN/SS2
11
8 POR
7 SW2
6 MODE/SYNC
DD PACKAGE
10-LEAD (3mm s 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 45°C/W, θ_JC = 10°C/W
EXPOSED PAD (PIN 11) IS PGND, MUST BE SOLDERED TO GND
V_FB1 1
RUN/SS1 2
V_IN 3
SW1 4
NC 5
TOP VIEW
11
10 V_FB2
9 RUN/SS2
8 POR
7 SW2
6 ^MODE/SYNC
MSE PACKAGE
10-LEAD PLASTIC MSOP
T_JMAX = 125°C, θ_JA = 45°C/W, θ_JC = 10°C/W
EXPOSED PAD (PIN 11) IS PGND, MUST BE SOLDERED TO GND
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3548AEDD#PBF
LTC3548AEDD#TRPBF
LFKV
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LTC3548AEMSE#PBF
LTC3548AEMSE#TRPBF
LTFKW
10-Lead Plastic MSOP
–40°C to 85°C
LTC3548AIDD#PBF
LTC3548AIDD#TRPBF
LFKV
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3548AIMSE#PBF
LTC3548AIMSE#TRPBF
LTFKW
10-Lead Plastic MSOP
–40°C to 125°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/
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