Datasheet

LTC3548
2
3548fc
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3548EDD#PBF LTC3548EDD#TRPBF LBNJ
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LTC3548IDD#PBF LTC3548IDD#TRPBF LBNJ
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 85°C
LTC3548EMSE#PBF LTC3548EMSE#TRPBF LTBNH 10-Lead Plastic MSOP –40°C to 85°C
LTC3548IMSE#PBF LTC3548IMSE#TRPBF LTBNH 10-Lead Plastic MSOP –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
V
IN
Voltages .................................................–0.3V to 6V
V
FB1
, V
FB2
Voltages ...........................–0.3V to V
IN
+0.3V
RUN1, RUN2 Voltages ................................ –0.3V to V
IN
MODE/SYNC Voltage .......................–0.3V to V
IN
+ 0.3V
SW1, SW2 Voltage ...........................– 0.3V to V
IN
+ 0.3V
POR Voltage .................................................–0.3V to 6V
(Note 1)
Operating Temperature Range (Note 2)....–40°C to 85°C
Junction Temperature (Note 5) ............................. 125°C
Storage Temperature Range ...................– 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
MSE Only .......................................................... 300°C
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 3.6V, unless otherwise specifi ed. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Operating Voltage Range
l
2.5 5.5 V
I
FB
Feedback Pin Input Current
l
30 nA
V
FB
Feedback Voltage (Note 3) 0°C ≤ T
A
≤ 85°C
–40°C ≤ T
A
≤ 85°C
l
0.588
0.585
0.6
0.6
0.612
0.612
V
V
ΔV
LINEREG
Reference Voltage Line Regulation V
IN
= 2.5V to 5.5V (Note 3) 0.3 0.5 %V
TOP VIEW
DD PACKAGE
10-LEAD (3mm s 3mm) PLASTIC DFN
10
11
9
6
7
8
4
5
3
2
1
V
FB2
RUN2
POR
SW2
MODE/
SYNC
V
FB1
RUN1
V
IN
SW1
GND
T
JMAX
= 125°C, θ
JA
= 45°C/W, θ
JC
= 3°C/W
EXPOSED PAD (PIN 11) IS PGND, MUST BE CONNECTED TO GND
(SOLDERED TO A 4-LAYER BOARD)
TOP VIEW
1
2
3
4
5
V
FB1
RUN1
V
IN
SW1
GND
10
9
8
7
6
V
FB2
RUN2
POR
SW2
MODE/
SYNC
11
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 CONNECTED TO GND
(SOLDERED TO A 4-LAYER BOARD)