ltc3850gn-2 Linear Technology Corporation, ltc3850gn-2 Datasheet - Page 2

• Manufacturer Part Number: ltc3850gn-2
• Description: Dual, 2-phase Synchronous Step-down Switching Controller
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
LTC3850-2
(Note 1)
Input Supply Voltage (V
Input Supply Transient Voltage (V
Top Side Driver Voltages
Switch Voltage (SW1, SW2) ......................... 30V to –5V
INTV
(BOOST1-SW1), (BOOST2-SW2) ................. 6V to –0.3V
SENSE1
SENSE2
MODE/PLLIN, TK/SS1,TK/SS2, FREQ/PLLFLTR
Voltages ................................................ INTV
I
INTV
Operating Temperature Range (Note 2)....–40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range ...................–65°C to 125°C
Lead Temperature (Soldering, 10 sec)
ORDER INFORMATION
LEAD FREE FINISH
LTC3850IGN-2#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:
For more information on tape and reel specifi cations, go to:
2
TH1
INTV
BOOST1, BOOST2 .................................. 34V to –0.3V
(GN Package) .................................................... 300°C
, I
CC
CC
TH2
, RUN1, RUN2, PGOOD, EXTV
CC
Peak Output Current ................................100mA
+
–
, SENSE2
, V
Voltages ..................................... 5.5V to –0.3V
≥ 5V ........................................... 34V to –0.3V
FB1
, V
FB2
+
, SENSE1
Voltages .................. 2.7V to –0.3V
TAPE AND REEL
LTC3850IGN-2#TRPBF
IN
) ......................... 30V to –0.3V
–
,
IN
) < 500ms, with
CC
,
http://www.linear.com/leadfree/
PART MARKING
LTC3850GN-2
CC
http://www.linear.com/tapeandreel/
to –0.3V
PIN CONFIGURATION
PACKAGE DESCRIPTION
28-Lead Narrow Plastic SSOP
SENSE1
SENSE1
SENSE2
SENSE2
EXTV
TK/SS1
TK/SS2
SGND
RUN1
RUN2
V
V
I
I
TH1
TH2
FB1
FB2
28-LEAD NARROW PLASTIC SSOP
CC
+
–
–
+
T
JMAX
10
11
12
13
14
1
2
3
4
5
6
7
8
9
= 125°C, θ
GN PACKAGE
TOP VIEW
JA
= 95°C/W
28
27
26
25
24
23
22
21
20
19
18
17
16
15
TEMPERATURE RANGE
–40°C to 85°C
FREQ/PLLFLTR
MODE/PLLIN
SW1
TG1
BOOST1
BG1
V
INTV
BG2
PGND
BOOST2
TG2
SW2
PGOOD
IN
CC
38502f