LTC3839
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
(Note 1)
TOP VIEW
V Voltage................................................. –±.3V to 4±V
IN
BOOST1, BOOST2 Voltages ....................... –±.3V to 4ꢀV
SW1, SW2 Voltages...................................... –ꢁV to 4±V
32 31 30 29 28 27 26 25
INTV , DRV , DRV , EXTV , PGOOD, RUN,
CC
CC1
CC2
CC
PHASMD
MODE/PLLIN
CLKOUT
SGND
1
2
3
4
5
6
7
8
24 BG2
23 DRV
(BOOST1-SW1), (BOOST2-SW2), MODE/PLLIN
CC2
Voltages....................................................... –±.3V to ꢀV
EXTV
INTV
22
21
CC
+
–
+
+
V
, V
, SENSE1 , SENSE2 ,
OUTSENSE
OUTSENSE
CC
33
PGND
–
–
SENSE1 , SENSE2 Voltages ....................... –±.ꢀV to ꢀV
TRACK/SS Voltage....................................... –±.3V to ꢁV
RT
20 PGND
ITH
V
IN
19
TRACK/SS
+
18 DRV
17 BG1
CC1
DTR, PHASMD, RT, V
,
RNG
V
OUTSENSE
ITH Voltages ...........................–±.3V to (INTV + ±.3V)
CC
9
10 11 12 13 14 15 16
Operating Junction Temperature Range
(Notes 2, 3, 4)........................................ –4±°C to 12ꢁ°C
Storage Temperature Range .................. –ꢀꢁ°C to 1ꢁ±°C
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
T
JMAX
= 12ꢁ°C, θ = 44°C/W
JA
EXPOSED PAD (PIN 33) IS PGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
(http://www.linear.com/product/ꢁTC3839#orderinfo)
ꢁEAD FREE FINISH
LTC3839EUH#PBF
LTC3839IUH#PBF
TAPE AND REEꢁ
PART MARKINꢂ*
3839
PACKAꢂE DESCRIPTION
TEMPERATURE RANꢂE
–4±°C to 12ꢁ°C
LTC3839EUH#TRPBF
LTC3839IUH#TRPBF
32-Lead (ꢁmm × ꢁmm) Plastic QFN
32-Lead (ꢁmm × ꢁmm) Plastic QFN
3839
–4±°C to 12ꢁ°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/. Some packages are available in ꢁ±± unit reels through
designated sales channels with #TRMPBF suffix.
Comparison of ꢁTC3839 and ꢁTC3838 Options
PART NUMBER
LTC3839
DESCRIPTION
Single Output, ±±.ꢀ67 Differential Output Regulation, Continuous 3±mV to 1±±mV Current Sense Range Control
LTC3838
Dual or Single Output, ±±.ꢀ67 Differential Output Regulation on Channel 1, ±17 Output Regulation on Channel 2,
Separate-Per-Channel Continuous 3±mV to 1±±mV Current Sense Range Controls
LTC3838-1
LTC3838-2
Dual or Single Output, ±±.ꢀ67 and ±±.6ꢁ7 Output Regulation on Channel 1 and 2, Both Channels Differential, Single-Pin
3±mV/ꢀ±mV Current Sense Range Control, Improved Current Limit Accuracy than LTC3838 and LTC3839
Dual Output (Internal Reference on Channel 1, External Reference on Channel 2) or Single Output (External Reference),
±±.ꢀ67 Differential Output Regulation with Internal Reference on Channel 1, ±.ꢀV ꢂ V
ꢂ ꢁ.ꢁV ±4mV Differential
OUT
Output Regulation with External Reference Voltage on Channel 2, ±.4V ꢂ V
Improved Current Limit Accuracy than LTC3838 and LTC3839
ꢂ ꢁ.ꢁV, Fixed 3±mV Current Sense Range,
OUT2
3839fa
2
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