LTC3839 Datasheet, PDF (2/50 Pages) Linear Technology – Fast, Accurate, 2-Phase, Single-Output Step-Down DC/DC Controller

LTC3839
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN Voltage................................................. –0.3V to 40V
BOOST1, BOOST2 Voltages ....................... –0.3V to 46V
SW1, SW2 Voltages ...................................... –5V to 40V
INTV_CC, DRV_CC1, DRV_CC2, EXTV_CC, PGOOD, RUN,
(BOOST1-SW1), (BOOST2-SW2), MODE/PLLIN
Voltages ....................................................... –0.3V to 6V
V_OUTSENSE+, V_{OUTSENSE–}, SENSE1⁺, SENSE2⁺,
SENSE1^–, SENSE2^– Voltages ....................... –0.6V to 6V
TRACK/SS Voltage....................................... –0.3V to 5V
DTR, PHASMD, RT, V_RNG,
ITH Voltages ........................... –0.3V to (INTV_CC + 0.3V)
Operating Junction Temperature Range
(Notes 2, 3, 4)........................................ –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
32 31 30 29 28 27 26 25
PHASMD 1
24 BG2
MODE/PLLIN 2
CLKOUT 3
SGND 4
RT 5
33
PGND
23 DRV_CC2
22 EXTV_CC
21 INTV_CC
20 PGND
ITH 6
TRACK/SS 7
V_OUTSENSE+ 8
19 V_IN
18 DRV_CC1
17 BG1
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 44°C/W
EXPOSED PAD (PIN 33) IS PGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3839EUH#PBF
LTC3839EUH#TRPBF 3839
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3839IUH#PBF
LTC3839IUH#TRPBF
3839
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°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/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T_A = 25°C. V_IN = 15V unless otherwise noted (Note 3).
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Main Control Loops
V_IN
V_OUT(REG)
I_Q
Input Voltage Operating Range
Regulated Output Voltage Operating Range _VVOOUUTTSR_ENeg_SEu_–lated Differentially with Respect to
Input DC Supply Current
RUN Enabled
Shutdown Supply Current
MODE/PLLIN = 0V, No Load
RUN = 0V
4.5
38
V
0.6
5.5
V
3
mA
15
μA
V_{OUTSENSE(REG)}
Regulated Differential Feedback Voltage
(V_OUTSENSE+ – V_{OUTSENSE–})
Regulated Differential Feedback Voltage
Over Line, Load and Common Mode
ITH1 = 1.2V (Note 5)
T_A = 25°C
T_A = 0°C to 85°C
T_A = –40°C to 125°C
–V0^IN.5=V4<.5VV_O^t_U^o_TS³_E⁸_N^V_S^,_E^{I–TH<10.=5V0.5(NVottoes1.59,V7)}
0.5985 0.6 0.6015
V
l 0.596 0.6 0.604
V
l 0.594 0.6 0.606
V
l 0.591 0.6 0.609
V
3839fa
2