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LTC3851AEGN#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
LTC3851A
25
3851afa
Typical applicaTions
MODE/PLLIN
FREQ/PLLFLTR
RUN
TK/SS
I
TH
V
FB
SENSE
–
SENSE
+
V
IN
TG
BOOST
SW
INTV
CC
BG
GND
I
LIM
LTC3851A
C
SS
0.1µF
C5
0.047µF
C
B
0.1µF
C
C2
330pF
C
C
2200pF
R
FREQ
82.5k
R
C
15k
V
OUT
3.3V
15A
C15
47pF
4.7µF
+
C
OUT
330µF
×2
C
IN
22µF
M1
HAT2170H
M2
HAT2170H
C
OUT
: SANYO 6TPE330MIL
C
IN
: SANYO 63HVH22M
L1: VISHAY IHLP5050-EZERR68MO1
3851A F11
D
B
CMDSH05-4
R2
154k
1%
R1
48.7k
1%
V
IN
4.5V TO 32V
L1
0.68µH
R27
3.01k
C20
0.1µF
+
30.1k
Figure 11. High Efficiency 3.3V/15A Step-Down Converter
MODE/PLLIN
FREQ/PLLFLTR
RUN
TK/SS
I
TH
V
FB
SENSE
–
SENSE
+
V
IN
TG
BOOST
SW
INTV
CC
BG
GND
I
LIM
LTC3851A
C
SS
0.1µF
C
B
0.1µF
C
C2
100pF
C
C
1000pF
C2
0.01µF
PLLIN
350kHz
C1
1000pF
R5
1k
R22 10Ω
R20 10Ω
R
C
7.5k
R
SENSE
0.002Ω
V
OUT
1.5V
15A
1000pF
4.7µF
+
C
OUT
330µF
×2
C
IN
180µF
C10
33pF
M1
RJK0305DPB
M2
RJK0301DPB
C
OUT
: SANYO 2R5TPE330M9
L1: SUMIDA CEP125-OR6MC
3851A F12
D
B
CMDSH-3
R2
43.2k
1%
R1
20k
1%
V
IN
6V TO 14V
L1
0.68µH
+
Figure 12. 1.5V/15A Synchronized at 350kHz
LTC3851A
26
3851afa
package DescripTion
GN16 (SSOP) 0204
1 2
3
4
5
6
7
8
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
16
15
14
13
.189 – .196*
(4.801 – 4.978)
12 11 10
9
.016 – .050
(0.406 – 1.270)
.015 ± .004
(0.38 ± 0.10)
× 45°
0° – 8° TYP
.007 – .0098
(0.178 – 0.249)
.0532 – .0688
(1.35 – 1.75)
.008 – .012
(0.203 – 0.305)
TYP
.004 – .0098
(0.102 – 0.249)
.0250
(0.635)
BSC
.009
(0.229)
REF
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.150 – .165
.0250 BSC.0165 ±.0015
.045 ±.005
* DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
INCHES
(MILLIMETERS)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
LTC3851A
27
3851afa
UD Package
16-Lead Plastic QFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1691)
package DescripTion
3.00 ± 0.10
(4 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.45 ± 0.05
(4 SIDES)
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2)
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 0.15mm 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 ± 0.10
BOTTOM VIEW—EXPOSED PAD
1.45 ± 0.10
(4-SIDES)
0.75 ± 0.05
R = 0.115
TYP
0.25 ± 0.05
1
PIN 1 NOTCH R = 0.20 TYP
OR 0.25 × 45° CHAMFER
15 16
2
0.50 BSC
0.200 REF
2.10 ± 0.05
3.50 ± 0.05
0.70 ±0.05
0.00 – 0.05
(UD16) QFN 0904
0.25 ±0.05
0.50 BSC
PACKAGE OUTLINE
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

LTC3851AEGN#PBF

Mfr. #:
Buy LTC3851AEGN#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Synchronous Step-Down Switching Regulator Controller
Lifecycle:
New from this manufacturer.
Delivery:
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