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LTC3865EUH-1#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P38
LTC3865/LTC3865-1
34
3865fb
TYPICAL APPLICATIONS
Figure 17. High Current, Single Output, 1.2V/30A Converter Using Sense Resistors
D3
D4
0.1µF
RJK0305DPB
RJK0330DPB
RJK0330DPB
L1
0.47µH
6800pF
100pF
0.1µF
0.1µF
162k
RUN1 RUN2
0
22µF
50V
C
OUT1
220µF
C
OUT1
, C
OUT2
: SANYO 4TPE 220µF
L1, L2: VISHAY IHLP4040DZERR47M11
100
100
1.21k
1%
2m
0.1µF
L2
0.47µH
C
OUT2
220µF
1.2V
30A
TG1 TG2
BOOST1 BOOST2
SW1 SW2
BG1
BG2
SGND
PGND
FREQ
SENSE1
+
SENSE2
+
VID21
SENSE1
–
SENSE2
–
V
OSENSE1
V
OSENSE2
I
TH1
I
TH2
V
IN
PGOOD INTV
CC
TK/SS1 TK/SS2
V
IN
7V TO 20V
3865 F17a
EXTV
CC
0.1µF
LTC3865
MODE/PLLIN
I
LIM
RUN2RUN1
VID22
VID12
VID11
2m
100
100
4.7µF
1µF
2.2Ω
+
+
+
RJK0305DPB
10µF
35V
10µF
35V
Effi ciency vs Load Current Load Step (Forced Continuous Mode)
LOAD CURRENT (A)
0
40
EFFICIENCY (%)
50
60
70
80
1 10 100
3865 F17b
30
20
10
0
90
100
V
IN
= 12V
Burst Mode
OPERATION
FORCED CONTINUOUS
MODE
PULSE-SKIPPING
MODE
40µs/DIVV
IN
= 12V
V
OUT
= 1.2V
V
OUT
200mV/DIV
AC-COUPLED
I
L
5A/DIV
I
LOAD
0A TO 20A/DIV
3865 F17c
LTC3865/LTC3865-1
35
3865fb
PACKAGE DESCRIPTION
UH Package
32-Lead Plastic QFN (5mm × 5mm)
(Reference LTC DWG # 05-08-1693 Rev D)
5.00 p 0.10
(4 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE A JEDEC PACKAGE OUTLINE
M0-220 VARIATION WHHD-(X) (TO BE APPROVED)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
PIN 1
TOP MARK
(NOTE 6)
0.40 p 0.10
31
1
2
32
BOTTOM VIEW—EXPOSED PAD
3.50 REF
(4-SIDES)
3.45 p 0.10
3.45 p 0.10
0.75 p 0.05
R = 0.115
TYP
0.25 p 0.05
(UH32) QFN 0406 REV D
0.50 BSC
0.200 REF
0.00 – 0.05
0.70 p0.05
3.50 REF
(4 SIDES)
4.10 p0.05
5.50 p0.05
0.25 p 0.05
PACKAGE OUTLINE
0.50 BSC
RECOMMENDED SOLDER PAD LAYOUT
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
PIN 1 NOTCH R = 0.30 TYP
OR 0.35 s 45o CHAMFER
R = 0.05
TYP
3.45 p 0.05
3.45 p 0.05
LTC3865/LTC3865-1
36
3865fb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTION
FE Package
38-Lead Plastic TSSOP (4.4mm)
(Reference LTC DWG # 05-08-1772 Rev A)
Exposed Pad Variation AA
4.75
(.187)
REF
FE38 (AA) TSSOP 0608 REV A
0.09 – 0.20
(.0035 – .0079)
0o – 8o
0.25
REF
0.50 – 0.75
(.020 – .030)
4.30 – 4.50*
(.169 – .177)
1
19
20
REF
9.60 – 9.80*
(.378 – .386)
38
1.20
(.047)
MAX
0.05 – 0.15
(.002 – .006)
0.50
(.0196)
BSC
0.17 – 0.27
(.0067 – .0106)
TYP
RECOMMENDED SOLDER PAD LAYOUT
0.315 ±0.05
0.50 BSC
4.50 REF
6.60 ±0.10
1.05 ±0.10
4.75 REF
2.74 REF
2.74
(.108)
MILLIMETERS
(INCHES)
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.150mm (.006") PER SIDE
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
SEE NOTE 4
4. RECOMMENDED MINIMUM PCB METAL SIZE
FOR EXPOSED PAD ATTACHMENT
6.40
(.252)
BSC
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P38

LTC3865EUH-1#TRPBF

Mfr. #:
Buy LTC3865EUH-1#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs
Lifecycle:
New from this manufacturer.
Delivery:
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