LTC3545 LINER [Linear Technology], LTC3545 Datasheet - Page 2

• Manufacturer Part Number: LTC3545
• Description: Triple 800mA Synchronous Step-Down Regulator-2.25MHz
• Manufacturer: LINER [Linear Technology]

ABSOLUTE MAXIMUM RATINGS
LTC3545/LTC3545-1
Input Supply Voltage .................................... –0.3V to 6V
RUNx, PGOODx ............................. –0.3V to (V
V
SWx .............................................. –0.3V to (V
P-Switch Source Current (DC) (Note 8) ...................1.1A
LEAD FREE FINISH
LTC3545EUD#PBF
LTC3545IUD#PBF
LTC3545EUD-1#PBF
LTC3545IUD-1#PBF
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:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
General Characteristics
V
V
ΔV
PIN CONFIGURATION
ORDER INFORMATION
2
LTC3545
IN
FBx
FBx
FBx
, SYNC/MODE ........................ –0.3V to (V
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
PARAMETER
Input Voltage Range
Regulated Feedback Voltage (Note 5)
Reference Voltage Line Regulation (Note 5)
PGOOD1
PGOOD2
RUN2
16-LEAD (3mm 3mm) PLASTIC QFN
SW1
1
2
3
4
T
JMAX
TAPE AND REEL
LTC3545EUD#TRPBF
LTC3545IUD#TRPBF
LTC3545EUD-1#TRPBF
LTC3545IUD-1#TRPBF
16 15 14 13
5
UD PACKAGE
TOP VIEW
= 125°C, θ
6
17
7
JA
8
= 55°C/W
12
11
10
9
V
V
RUN3
SYNC/MODE
FB2
FB3
http://www.linear.com/leadfree/
PART MARKING*
LCSR
LCSR
LDDP
LDDP
http://www.linear.com/tapeandreel/
A
IN
IN
IN
= 25°C. V
+ 0.3V)
+ 0.3V)
+ 0.3V)
CONDITIONS
T
0°C ≤ T
LTC3545IUD; –40°C < T
V
A
IN
The
= 25°C
= 2.25V to 5.5V
(Note 1)
●
A
IN
≤ 85°C
denotes the specifi cations which apply over the full operating
= PV
LTC3545-1
N-Channel Sink Current (DC) (Note 8) .....................1.1A
Peak SW Sink and Source Current (Note 8) .............1.3A
Operating Junction Temperature Range
Storage Temperature Range ................... –65°C to 125°C
IN
(Note 2) ............................................. –40°C to 125°C
= 3.6V unless otherwise noted. (Note 2)
PACKAGE DESCRIPTION
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
A
< 125°C
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
PGOOD1
PGOOD2
RUN2
16-LEAD (3mm 3mm) PLASTIC QFN
SW1
T
1
2
3
4
JMAX
16 15 14 13
5
UD PACKAGE
●
●
●
●
= 125°C, θ
TOP VIEW
6
17
0.592
0.588
0.588
7
MIN
2.25
JA
8
= 55°C/W
12
11
10
9
V
V
RUN3
PGOOD3
0.08
TYP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
0.6
0.6
0.6
FB2
FB3
0.608
0.612
0.612
MAX
0.15
5.5
UNITS
35451fb
%/V
V
V
V
V