LTC3834 Linear Technology, LTC3834 Datasheet - Page 2

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LTC3834

Manufacturer Part Number
LTC3834
Description
Synchronous Step-Down Controller
Manufacturer
Linear Technology
Datasheet

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ABSOLUTE MAXIMUM RATINGS
LTC3834
Input Supply Voltage (V
Topside Driver Voltage (BOOST) ................ 42V to –0.3V
Switch Voltage (SW) ..................................... 36V to –5V
INTV
RUN, TRACK/SS ......................................... 7V to –0.3V
SENSE
PLLIN/MODE, PHASMD, PLLLPF ......... INTV
EXTV
ORDER INFORMATION
LEAD FREE FINISH
LTC3834EFE#PBF
LTC3834IFE#PBF
LTC3834EUFD#PBF
LTC3834IUFD#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
PIN CONFIGURATION
2
CC
CC
+
, (BOOST-SW), CLKOUT, PGOOD .. 8.5V to –0.3V
, SENSE
...................................................... 10V to –0.3V
EXPOSED PAD (PIN 21) IS SGND, MUST BE SOLDERED TO PCB
TRACKS/SS
CLKOUT
PLLLPF
EXTV
INTV
SGND
PGND
V
I
BG
Voltages ........................ 11V to –0.3V
TH
CC
CC
FB
20-LEAD PLASTIC TSSOP
T
10
JMAX
1
2
3
4
5
6
7
8
9
TAPE AND REEL
LTC3834EFE#TRPBF
LTC3834IFE#TRPBF
LTC3834EUFD#TRPBF
LTC3834IUFD#TRPBF
IN
FE PACKAGE
= 125°C, θ
TOP VIEW
) ......................... 36V to –0.3V
21
JA
= 35°C/W
20
19
18
17
16
15
14
13
12
11
PHASMD
PLLIN/MODE
PGOOD
SENSE
SENSE
RUN
BOOST
TG
SW
V
IN
+
http://www.linear.com/leadfree/
PART MARKING*
LTC3834FE
LTC3834FE
3834
3834
CC
http://www.linear.com/tapeandreel/
to –0.3V
(Note 1)
I
Peak Output Current <10μs (TG, BG) ..........................3A
INTV
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)
TH
FE Package ....................................................... 300°C
, V
PACKAGE DESCRIPTION
20-Lead Plastic TSSOP
20-Lead Plastic TSSOP
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
CC
FB
Peak Output Current ................................. 50mA
Voltages ...................................... 2.7V to –0.3V
EXPOSED PAD (PIN 21) IS SGND, MUST BE SOLDERED TO PCB
TRACK/SS
SGND
PGND
V
I
20-PIN (4mm 5mm) PLASTIC QFN
BG
TH
FB
T
1
2
3
4
5
6
JMAX
20 19 18 17
= 125°C, θ
7
UFD PACKAGE
TOP VIEW
8
21
9 10
JA
= 37°C/W
16
15
14
13
12
11
TEMPERATURE RANGE
–40°C to 85°C (Note 2)
–40°C to 85°C
–40°C to 85°C (Note 2)
–40°C to 85°C
PGOOD
SENSE
SENSE
RUN
BOOST
TG
+
3834fb

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