LTC3834 Datasheet, PDF (2/28 Pages) Linear Technology – 30μA IQ Synchronous Step-Down Controller

LTC3834
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V_IN) ......................... 36V to –0.3V
Topside Driver Voltage (BOOST) ................ 42V to –0.3V
Switch Voltage (SW)..................................... 36V to –5V
INTV_CC, (BOOST-SW), CLKOUT, PGOOD .. 8.5V to –0.3V
RUN, TRACK/SS ......................................... 7V to –0.3V
SENSE⁺, SENSE^– Voltages ........................ 11V to –0.3V
PLLIN/MODE, PHASMD, PLLLPF ......... INTV_CC to –0.3V
EXTV_CC ...................................................... 10V to –0.3V
I_TH, V_FB Voltages ...................................... 2.7V to –0.3V
Peak Output Current <10μs (TG, BG) ..........................3A
INTV_CC Peak Output Current ................................. 50mA
Operating Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
FE Package ....................................................... 300°C
PIN CONFIGURATION
TOP VIEW
CLKOUT 1
20 PHASMD
PLLLPF 2
19 PLLIN/MODE
I_TH 3
TRACKS/SS 4
V_FB 5
SGND 6
18 PGOOD
17 SENSE⁺
21
16 SENSE^–
15 RUN
PGND 7
14 BOOST
BG 8
13 TG
INTV_CC 9
EXTV_CC 10
12 SW
11 V_IN
FE PACKAGE
20-LEAD PLASTIC TSSOP
T_JMAX = 125°C, θ_JA = 35°C/W
EXPOSED PAD (PIN 21) IS SGND, MUST BE SOLDERED TO PCB
TOP VIEW
I_TH 1
TRACK/SS 2
V_FB 3
SGND 4
PGND 5
BG 6
20 19 18 17
16 PGOOD
15 SENSE⁺
14 SENSE^–
21
13 RUN
12 BOOST
11 TG
7 8 9 10
UFD PACKAGE
20-PIN (4mm s 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 37°C/W
EXPOSED PAD (PIN 21) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3834EFE#PBF
LTC3834EFE#TRPBF
LTC3834FE
20-Lead Plastic TSSOP
–40°C to 85°C (Note 2)
LTC3834IFE#PBF
LTC3834IFE#TRPBF
LTC3834FE
20-Lead Plastic TSSOP
–40°C to 85°C
LTC3834EUFD#PBF
LTC3834EUFD#TRPBF 3834
20-Lead (4mm × 5mm) Plastic QFN –40°C to 85°C (Note 2)
LTC3834IUFD#PBF
LTC3834IUFD#TRPBF 3834
20-Lead (4mm × 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/
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