LTC3548-1 Datasheet, PDF (2/16 Pages) Linear Technology – Dual Synchronous, Fixed Output 2.25MHz Step-Down DC/DC Regulator

LTC3548-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
V_IN Voltages .................................................– 0.3V to 6V
V_FB1, V_FB2, V_OUT1, V_OUT2,
RUN1, RUN2 Voltages ..................... –0.3V to V_IN + 0.3V
SW1, SW2 Voltage........................... –0.3V to V_IN + 0.3V
Ambient Operating Temperature Range
(Note 2)....................................................– 40°C to 85°C
Junction Temperature (Note 5) ............................. 125°C
Storage Temperature Range...................– 65°C to 125°C
PIN CONFIGURATION
TOP VIEW
V_FB1 1
V_{OUT1 2}
V_{IN 3}
SW1
4
GND
5
10 V_FB2
9 ^VOUT2
11
8 ^RUN1
7 ^SW2
6 ^RUN2
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 40°C/W, θ_JC = 3°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB GND
(SOLDERED TO A 4-LAYER BOARD)
TOP VIEW
V_FB1 1
V_OUT1 2
V_IN 3
SW1 4
GND 5
10 V_FB2
9 V_OUT2
11
8 RUN1
7 SW2
6 RUN2
KD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC UTDFN
T_JMAX = 125°C, θ_JA = 43°C/W, θ_JC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB GND
(SOLDERED TO A 4-LAYER BOARD)
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING PACKAGE DESCRIPTION
LTC3548EDD-1#PBF
LTC3548EDD-1#TRPBF
LBZC
10-Lead (3mm × 3mm) Plastic DFN
LTC3548EKD-1#PBF
LTC3548EKD-1#TRPBF
CXVT
10-Lead (3mm × 3mm) Plastic UTDFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
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/
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
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