LTC3735 Datasheet, PDF (2/32 Pages) Linear Technology – 2-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

LTC3735
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (PV_CC)........................ 7V to – 0.3V
Topside Driver Voltages (BOOST1,2).......... 38V to –0.3V
Switch Voltage (SW1, 2)................................ 32V to –5V
Boosted Driver Voltages
(BOOST1-SW1, BOOST2-SW2)................ 7V to –0.3V
DPRSLPVR, STP_CPUB, MCH_PG, PGOOD,
RDPRSLP, RDPSLP, RBOOT Voltages .......... 5V to –0.3V
RUN/SS, PSIB, FREQSET Voltages ..............7V to – 0.3V
VID0-VID5 Voltages .....................................5V to – 0.3V
V_FB, Voltage................................................. 2V to –0.3V
V_OA+, V_OA– ................................................ 3.6V to –0.3V
Peak Gate Drive Current <1µs
(TG1, TG2, BG1, BG2)..................................................5A
Operating Ambient Temperature Range
(Note 2) .................................................... –40°C to 85°C
Junction Temperature (Note 3).............................. 125°C
Storage Temperature Range
SSOP.................................................. –65°C to 150°C
QFN..................................................... –65°C to 125°C
QFN Reflow Peak Body Temperature..................... 260°C
Lead Temperature (Soldering, 10 sec)................... 300°C
PIN CONFIGURATION
TOP VIEW
V_FB 1
DPRSLPVR 2
FREQSET 3
PSIB 4
V_OA+ 5
V_OA– 6
OAOUT 7
STP_CPUB 8
SGND 9
SENSE1⁺ 10
SENSE1^– 11
SENSE2⁺ 12
SENSE2^– 13
RDPRSLP 14
RDPSLP 15
RUN/SS 16
I_TH 17
RBOOT 18
36 MCH_PG
35 PGOOD
34 BOOST1
33 TG1
32 SW1
31 BOOST2
30 TG2
29 SW2
28 PV_CC
27 BG1
26 PGND
25 BG2
24 VID5
23 VID4
22 VID3
21 VID2
20 VID1
19 VID0
G PACKAGE
36-LEAD PLASTIC SSOP
T_JMAX = 125°C, θ_JA = 85°C/W
TOP VIEW
FREQSET 1
PSIB 2
V_OA+ 3
V_OA– 4
OAOUT 5
STP_CPUB 6
SGND 7
SENSE1⁺ 8
SENSE1^– 9
SENSE2⁺ 10
SENSE2^– 11
RDPRSLP 12
38 37 36 35 34 33 32
39
13 14 15 16 17 18 19
31 NC
30 BOOST2
29 TG2
28 SW2
27 PV_CC
26 BG1
25 PGND
24 BG2
23 VID5
22 VID4
21 VID3
20 VID2
UHF PACKAGE
38-LEAD (7mm × 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 34°C/W
EXPOSED PAD (PIN 39) IS SIGNAL GROUND, MUST BE CONNECTED TO PCB AND SGND
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3735EG#PBF
LTC3735EG#TRPBF
LTC3735
36-Lead Plastic SSOP
–40°C to 85°C
LTC3735EUHF#PBF
LTC3735EUHF#TRPBF LTC3735
38-Lead (7mm × 5mm) Plastic QFN
–40°C to 85°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/
3735fa
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