LTC3331_15 Datasheet, PDF (2/34 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Charger

LTC3331
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN
Low Impedance Source...........................–0.3 to 19V*
Current-Fed, I_SW = 0A.........................................25mA
AC1, AC2..............................................................0 to V_IN
BB_IN, V_OUT, V_IN3, BAT_IN, SCAP, PGVOUT,
CHARGE, SHIP.................................................–0.3 to 6V
BAT_OUT..... –0.3V to [Lesser of (BAT_IN + 0.3V) or 6V]
V_IN2.....................–0.3V to [Lesser of (V_IN + 0.3V)] or 6V
CAP....................... [Higher of –0.3V or (V_IN – 6V)] to V_IN
BAL.............................................–0.3V to (SCAP + 0.3V)
OUT[2:0]........... –0.3V to [Lesser of (V_IN3 + 0.3V) or 6V]
IPK[2:0]............ –0.3V to [Lesser of (V_IN3 + 0.3V) or 6V]
EH_ON.............. –0.3V to [Lesser of (V_IN3 + 0.3V) or 6V]
FLOAT[1:0].... –0.3V to [Lesser of (BB_IN + 0.3V) or 6V]
LBSEL............ –0.3V to [Lesser of (BB_IN + 0.3V) or 6V]
UV[3:0]............. –0.3V to [Lesser of (V_IN2 + 0.3V) or 6V]
I_AC1, I_AC2...............................................................±50mA
I_SWA, I_SWB, I_VOUT..................................................350mA
I_SW........................................................................500mA
Operating Junction Temperature Range
(Notes 2, 3)............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
*V_IN has an internal 20V clamp
PIN CONFIGURATION
TOP VIEW
32 31 30 29 28 27 26 25
BAL 1
24 FLOAT0
SCAP 2
23 FLOAT1
V_IN2 3
UV3 4
UV2 5
22 LBSEL
33
21 BAT_IN
GND
20 BAT_OUT
UV1 6
19 IPK2
UV0 7
18 IPK1
AC1 8
17 IPK0
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 44°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3331EUH#PBF
LTC3331EUH#TRPBF 3331
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC3331IUH#PBF
LTC3331IUH#TRPBF
3331
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/
3331fb
2
For more information www.linear.com/LTC3331