LTC3355_15 Datasheet, PDF (2/20 Pages) Linear Technology – 20V 1A Buck DC/DC with Integrated SCAP Charger and Backup Regulator

LTC3355
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN, V_INS, V_INM5.........................................................22V
V_IN ±V_INS................................................................... 0.1V
V_SW1........................................................... –0.4V to 22V
V_SW2............................................................. –0.4V to 6V
V_OUT, INTV_CC, PFOB, RSTB,
CPGOOD, V_CAP.............................................. –0.3V to 6V
PFI, EN_CHG, MODE, FB............................... –0.3V to 6V
CFB.............................................–0.3V to INTV_CC + 0.3V
I_CPGOOD, I_PFOB, I_RSTB.................................................1mA
Operating Junction Temperature Range
(Notes 2, 3)............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
PFI 1
FB 2
MODE 3
V_INS 4
V_IN 5
20 19 18 17 16
15 V_OUT
14 V_CAP
21
GND
13 RSTB
12 I_CHG
11 CFB
6 7 8 9 10
UF PACKAGE
20-LEAD (4mm × 4mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 47°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3355EUF#PBF
LTC3355EUF#TRPBF
3355
20-Lead (4mm × 4mm) Plastic QFN
LTC3355IUF#PBF
LTC3355IUF#TRPBF
3355
20-Lead (4mm × 4mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on nonstandard lead based finish parts.
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/
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
3355fb
2
For more information www.linear.com/LTC3355