LTC3851 LINER [Linear Technology], LTC3851 Datasheet - Page 2

• Manufacturer Part Number: LTC3851
• Description: Synchronous Step-Down Switching Regulator Controller
• Manufacturer: LINER [Linear Technology]

ABSOLUTE MAXIMUM RATINGS
LTC3851
Input Supply Voltage (V
Topside Driver Voltage (BOOST) ................ 46V to –0.3V
Switch Voltage (SW) ..................................... 40V to –5V
INTV
TK/SS, I
SENSE
MODE/PLLIN, FREQ/PLLFLTR ............... INTV
I
ORDER INFORMATION
LEAD FREE FINISH
LTC3851EGN#PBF
LTC3851EUD#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
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/
PIN CONFIGURATION
2
TH
, V
CC
FB
+
, (BOOST – SW), RUN ...................... 6V to –0.3V
, SENSE
LIM
Voltages .......................................... 3V to –0.3V
............................................ INTV
FREQ/PLLFLTR
MODE/PLLIN
–
SENSE
SENSE
.......................................... 6V to –0.3V
TK/SS
RUN
16-LEAD PLASTIC SSOP NARROW
I
FB
TH
–
+
T
JMAX
TAPE AND REEL
LTC3851EGN#TRPBF
LTC3851EUD#TRPBF
1
2
3
4
5
6
7
8
IN
= 125°C, θ
) ......................... 40V to –0.3V
GN PACKAGE
TOP VIEW
JA
= 90°C/W
16
15
14
13
12
11
10
9
SW
TG
BOOST
V
INTV
BG
GND
I
LIM
IN
CC
PART MARKING
3851
LCXN
CC
CC
to –0.3V
to –0.3V
(Note 1)
INTV
Operating Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
GN ..................................................... –65°C to 150°C
UD ......................................................... –65 to 125°C
GN .................................................................... 300°C
PACKAGE DESCRIPTION
16-Lead Plastic SSOP
16-Lead (3mm × 3mm) Plastic QFN
CC
Peak Output Current ..................................50mA
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
T
TK/SS
JMAX
16-LEAD (3mm 3mm) PLASTIC QFN
RUN
I
TH
FB
= 125°C, θ
1
2
3
4
16 15 14 13
5
UD PACKAGE
TOP VIEW
JA
6
= 68°C/W, θ
17
7
8
JC
12
11
10
9
= 4.2°C/W
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
BOOST
V
INTV
BG
IN
CC
3851f