LTC3876_15 Datasheet, PDF (2/48 Pages) Linear Technology – Dual DC/DC Controller for DDR Power with Differential VDDQ Sensing and 50mA VTT Reference

LTC3876
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (V_IN)......................... –0.3V to 40V
BOOST1, BOOST2 Voltages ....................... –0.3V to 46V
SW1, SW2 Voltages ...................................... –5V to 40V
INTV_CC, DRV_CC1, DRV_CC2, EXTV_CC, PGOOD, RUN,
(BOOST1-SW1), (BOOST2-SW2), MODE/PLLIN
Voltages ....................................................... –0.3V to 6V
V_OUTSENSE1+, V_{OUTSENSE1–} , SENSE1⁺, SENSE1^–,
SENSE2⁺, SENSE2^– Voltages ....................... –0.6V to 6V
TRACK/SS1 Voltage..................................... –0.3V to 5V
DTR1, CVCC, PHASMD, RT, V_RNG1, V_RNG2, VTTSNS,
VDDQSNS, VTTR, ITH1, ITH2
Voltages ................................ ..–0.3V to (INTV_CC + 0.3V)
Operating Junction Temperature Range
(Notes 2, 3, 4) ....................................... –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
FE Package ...................................................... 300°C
PIN CONFIGURATION
TOP VIEW
ITH2 1
VDDQSNS 2
VTTR 3
VTTRVCC 4
MODE/PLLIN 5
CLKOUT 6
SGND 7
RT 8
V_RNG1 9
ITH1 10
TRACK/SS1 11
V_OUTSENSE1+ 12
38 37 36 35 34 33 32
PGND
39
13 14 15 16 17 18 19
31 TG2
30 SW2
29 BG2
28 DRV_CC2
27 EXTV_CC
26 INTV_CC
25 PGND
24 V_IN
23 DRV_CC1
22 BG1
21 SW1
20 TG1
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 34°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB PGND
CVCC 1
SENSE2^– 2
SENSE2⁺ 3
PHASMD 4
ITH2 5
VDDQSNS 6
VTTR 7
VTTRVCC 8
MODE/PLLIN 9
CLKOUT 10
SGND 11
RT 12
V_RNG1 13
ITH1 14
TRACK/SS1 15
V_OUTSENSE1+ 16
V_{OUTSENSE1–} 17
SENSE1⁺ 18
SENSE1^– 19
TOP VIEW
PGND
39
38 V_RNG2
37 VTTSNS
36 BOOST
35 TG2
34 SW2
33 BG2
32 DRV_CC
31 EXTV_CC
30 INTV_CC
29 PGND
28 V_IN
27 DRV_CC1
26 BG1
25 SW1
24 TG1
23 BOOST1
22 PGOOD
21 RUN
20 DTR1
FE PACKAGE
38-LEAD PLASTIC TSSOP
T_JMAX = 125°C, θ_JA = 28°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3876EUHF#PBF
LTC3876EUHF#TRPBF
3876
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3876IUHF#PBF
LTC3876IUHF#TRPBF
3876
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3876EFE#PBF
LTC3876EFE#TRPBF
LTC3876FE
38-Lead Plastic TSSOP
–40°C to 125°C
LTC3876IFE#PBF
LTC3876IFE#TRPBF
LTC3876FE
38-Lead Plastic TSSOP
–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/
3876f
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