Datasheet

LTC3544B
2
3544bfb
elecTrical characTerisTics
absoluTe MaxiMuM raTings
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
(Note 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
General Characteristics
V
IN
Input Voltage Range
l
2.25 5.5 V
V
FBREGx
Regulated Feedback Voltage (Note 5)
l
0.792
0.784
0.8
0.8
0.808
0.816
V
V
ΔV
FBREGx
Reference Voltage Line Regulation (Note 5) V
IN
= 2.25V to 5.5V 0.05 0.25 %/V
V
LOADREG
Output Voltage Load Regulation (Note 6) 0.5 %
I
S
Input DC Bias Current Active Mode (Pulse Skip) V
FB
= 0.7V, I
LOAD
= 0A, 2.25MHz,
Four Regulators Enabled
825 1100 µA
Shutdown 0.1 2 µA
f
OSC
Oscillator Frequency V
IN
= 3V
V
IN
= 2.5V to 5.5V
l
1.8
2.25
2.7
MHz
MHz
16 15 14 13
5 6 7 8
TOP VIEW
17
GNDA
UD PACKAGE
16-LEAD (3mm s 3mm) PLASTIC QFN
9
10
11
12
4
3
2
1V
FB200B
V
FB200A
RUN200A
SW200B
RUN100
V
FB100
V
FB300
RUN300
RUN200B V
CC
GNDA SW100
SW200A
PGND
PV
IN
SW300
T
JMAX
= 125°C, θ
JA
= 68°C/W
EXPOSED PAD (PIN 17) IS ANALOG GND, MUST BE SOLDERED TO PCB
The l 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. (Note 2)
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3544BEUD#PBF LTC3544BEUD#TRPBF LCLN
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3544BEUD LTC3544BEUD#TR LCLN
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
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/