LTC3866 Datasheet, PDF (2/36 Pages) Linear Technology – Current Mode Synchronous Controller for Sub Milliohm DCR Sensing

LTC3866
Absolute Maximum Ratings (Note 1)
Input Supply Voltage................................... –0.3V to 40V
Topside Driver Voltage (BOOST)................. –0.3V to 46V
Switch Voltage(SW) ...................................... –5V to 40V
INTV_CC, EXTV_CC, RUN, PGOOD,
BOOST-SW Voltages..................................... –0.3V to 6V
SNSD⁺, SNSA⁺, SNS^– Voltages.............. –0.3V to INTV_CC
MODE/PLLIN, ILIM, TK/SS, FREQ,
DIFFOUT Voltages.................................. –0.3V to INTV_CC
DIFFP, DIFFN.......................................... –0.3V to INTV_CC
ITEMP, ITH, V_FB Voltages ..................... –0.3V to INTV_CC
INTV_CC Peak Output Current ...............................100mA
Operating Junction Temperature Range
(Notes 2, 4)............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
FE Package........................................................ 300°C
Pin Configuration
FREQ 1
RUN 2
TK/SS 3
ITH 4
V_FB 5
DIFFOUT 6
DIFFN 7
DIFFP 8
SNSD⁺ 9
SNS^– 10
SNSA⁺ 11
ILIM 12
TOP VIEW
25
SGND
24 MODE/PLLIN
23 PGOOD
22 ITEMP
21 EXTV_CC
20 V_IN
19 INTV_CC
18 BOOST
17 TG
16 SW
15 BG
14 PGND
13 CLKOUT
FE PACKAGE
24-LEAD PLASTIC TSSOP
θ_JA = 33°C/W, θ_JC = 10°C/W
EXPOSED PAD (PIN 25) IS SGND, MUST BE SOLDERED TO PCB
TOP VIEW
24 23 22 21 20 19
ITH 1
V_FB 2
DIFFOUT 3
DIFFN 4
DIFFP 5
SNSD⁺ 6
25
SGND
18 EXTV_CC
17 V_IN
16 INTV_CC
15 BOOST
14 TG
13 SW
7 8 9 10 11 12
UF PACKAGE
24-LEAD (4mm × 4mm) PLASTIC QFN
θ_JA = 47°C/W, θ_JC = 4.5°C/W
EXPOSED PAD (PIN 25) IS SGND, MUST BE SOLDERED TO PCB
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3866EFE#PBF
LTC3866EFE#TRPBF
LTC3866FE
24-Lead Plastic TSSOP
–40°C to 125°C
LTC3866IFE#PBF
LTC3866IFE#TRPBF
LTC3866FE
24-Lead Plastic TSSOP
–40°C to 125°C
LTC3866EUF#PBF
LTC3866EUF#TRPBF
3866
24-Lead (4mm × 4mm) Plastic QFN
–40°C to 125°C
LTC3866IUF#PBF
LTC3866IUF#TRPBF
3866
24-Lead (4mm × 4mm) 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.
Consult LTC Marketing for information on non-standard 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/
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