LTC3828_15 Datasheet, PDF (2/32 Pages) Linear Technology – Dual, 2-Phase Step-Down Controller with Tracking

LTC3828
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V_IN) ........................ 30V to –0.3V
Top Side Driver Voltages
BOOST1, BOOST2................................. 36V to –0.3V
Switch Voltage (SW1, SW2) ........................ 30V to –5V
INTV_CC, DRV_CC, RUN1, RUN2, (BOOST1-SW1),
(BOOST2-SW2)........................................... 7V to –0.3V
SENSE1⁺, SENSE2⁺, SENSE1^–,
SENSE2^– Voltages ........................ (1.1)INTV_CC to –0.3V
FCB/PLLIN, PLLFLTR, CLKOUT,
PHSMD Voltage .................................. INTV_CC to –0.3V
TRCKSS1, TRCKSS2............................. INTV_CC to –0.3V
PGOOD...................................................... 5.5V to –0.3V
I_TH1, I_TH2, V_OSENSE1, V_OSENSE2 Voltages ... 2.7V to –0.3V
Peak Output Current <10μs (TG1, TG2, BG1, BG2) .... 3A
INTV_CC Peak Output Current (Note 8) ................... 50mA
Operating Temperature Range (Note 7)
LTC3828E............................................ –40°C to 85°C
Junction Temperature (Note 2) ............................ 125°C
Storage Temperature Range.................. –65°C to 125°C
Reflow Peak Body Temperature (UH Package)..... 260°C
Lead Temperature (Soldering, 10 sec)
G Package......................................................... 300°C
PIN CONFIGURATION
TRCKSS1 ¹
I_TH1 ²
SENSE1+ ³
SENSE1– ⁴
V_OSENSE1 ⁵
PLLFLTR ⁶
RUN1 ⁷
FCB/PLLIN ⁸
SGND ⁹
TRCKSS2 ¹⁰
SENSE2^{– 11}
SENSE2^{+ 12}
I_TH2 ¹³
V_OSENSE2 ¹⁴
TOP VIEW
28 CLKOUT
27 PGOOD
26 BOOST1
25 TG1
24 SW1
23 V_IN
22 INTV_CC
21 PGND
20 BG1
19 BG2
18 SW2
17 TG2
16 BOOST2
15 RUN2
G PACKAGE
28-LEAD PLASTIC SSOP
T_JMAX = 125°C, θ_JA = 95°C/W
TOP VIEW
32 31 30 29 28 27 26 25
V_OSENSE1 1
PLLFLTR 2
RUN1 3
PHSMD 4
FCB/PLLIN 5
24 SW1
23 V_IN
22 INTV_CC
33
21 DRV_CC
20 PGND
SGND 6
19 BG1
TRCKSS2 7
18 BG2
NC 8
17 SW2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm s 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 34°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
LTC3828EG#PBF
LTC3828EG#TRPBF
LTC3828EG
28-Lead Plastic SSOP
LTC3828EUH#PBF
LTC3828EUH#TRPBF 3828
32-Lead (5mm × 5mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
2
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
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