LTC3544_15 Datasheet, PDF (2/16 Pages) Linear Technology – Quad Synchronous Step-Down Regulator

LTC3544
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage .....................................–0.3V to 6V
RUNx ............................................. –0.3V to (V_IN + 0.3V)
V_FBx................................................ –0.3V to (V_IN + 0.3V)
SWx ............................................... –0.3V to (V_IN + 0.3V)
300mA P-Channel Source Current (DC) (Note 8) ..450mA
300mA N-Channel Sink Current (DC) (Note 8) ......450mA
200mA P-Channel Source Current (DC) (Note 8) ..300mA
200mA N-Channel Sink Current (DC) (Note 8) ......300mA
100mA P-Channel Source Current (DC) (Note 8) ..200mA
100mA N-Channel Sink Current (DC) (Note 8) ......200mA
Peak 300mA SW Sink and Source Current
(Note 8)................................................................600mA
Peak 200mA SW Sink and Source Current
(Note 8)................................................................400mA
Peak 100mA SW Sink and Source Current
(Note 8)................................................................200mA
Operating Temperature Range ...................–40°C to 85°C
Junction Temperature (Notes 3, 4) ........................ 125°C
Storage Temperature Range ....................–65°C to 125°C
PIN CONFIGURATION
TOP VIEW
16 15 14 13
V_FB200B 1
12 RUN100
V_FB200A 2
17
11 V_FB100
RUN200A 3
10 V_FB300
SW200B 4
9 RUN300
5678
UD PACKAGE
16-LEAD (3mm × 3mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 68°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3544EUD#PBF
LTC3544EUD#TRPBF LCXM
16-Lead (3mm × 3mm) Plastic QFN
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3544EUD
LTC3544EUD#TR
LCXM
16-Lead (3mm × 3mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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
TEMPERATURE RANGE
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.6V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
General Characteristics
V_IN
V_FBREGx
Input Voltage Range
Regulated Feedback Voltage (Note 5)
● 2.25
5.5
V
0.792 0.8 0.808
V
● 0.784 0.8 0.816
V
ΔV_FBREGx
V_LOADREG
Reference Voltage Line Regulation (Note 5)
Output Voltage Load Regulation (Note 6)
V_IN = 2.25V to 5.5V
0.05 0.25
%/V
0.5
%
3544fa
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