LTC3834-1 Datasheet, PDF (2/28 Pages) Linear Technology – 30μA IQ Synchronous Step-Down Controller

LTC3834-1
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (V_IN).........................36V to – 0.3V
Top Side Driver Voltage (BOOST) ..............42V to – 0.3V
Switch Voltage (SW) ....................................36V to – 5V
INTV_CC, (BOOST-SW) ................................. 8.5V to – 0.3V
RUN, TRACK/SS ......................................... 7V to – 0.3V
SENSE⁺, SENSE^– Voltages .........................11V to – 0.3V
PLLIN/MODE, PLLLPF ......................... INTV_CC 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
(GN Package, Soldering, 10 sec) ...................... 300°C
PI CO FIGURATIO
TOP VIEW
PLLLPF 1
I_TH 2
TRACK/SS 3
V_FB 4
SGND 5
PGND 6
BG 7
INTV_CC 8
16 PLLIN/MODE
15 SENSE⁺
14 SENSE^–
13 RUN
17
12 BOOST
11 TG
10 SW
9 V_IN
DHC PACKAGE
16-Pin (5mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 43.5°C/W
EXPOSED PAD (PIN 17) IS SGND
MUST BE SOLDERED TO PCB
TOP VIEW
PLLLPF 1
I_TH 2
TRACK/SS 3
V_FB 4
SGND 5
PGND 6
BG 7
INTV_CC 8
16 PLLIN/MODE
15 SENSE⁺
14 SENSE^–
13 RUN
12 BOOST
11 TG
10 SW
9 V_IN
GN PACKAGE
16-LEAD PLASTIC SSOP
T_JMAX = 150°C, θ_JA = 90°C/W
UW U
ORDER I FOR ATIO
LEAD FREE FINISH
LTC3834EDHC-1#PBF
LTC3834IDHC-1#PBF
LTC3834EGN-1#PBF
LTC3834IGN-1#PBF
TAPE AND REEL
LTC3834EDHC-1#TRPBF
LTC3834IDHC-1#TRPBF
LTC3834EGN-1#TRPBF
LTC3834IGN-1#TRPBF
PART MARKING*
38341
38341
38341
38341
PACKAGE DESCRIPTION
16-Lead (5mm × 3mm) Plastic DFN
16-Lead (5mm × 3mm) Plastic DFN
16-Lead Plastic SSOP
16-Lead Plastic SSOP
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
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard 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/
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 12V, V_RUN = 5V unless otherwise noted.
SYMBOL PARAMETER
Main Control Loop
V_FB
I_VFB
V_REFLNREG
Regulated Feedback Voltage
Feedback Current
Reference Voltage Line Regulation
CONDITIONS
(Note 4); I_TH Voltage = 1.2V
(Note 4)
V_IN = 4V to 30V (Note 4)
MIN TYP MAX UNITS
● 0.792
0.800
–5
0.002
0.808
– 50
0.02
V
nA
%/V
38341f
2