ltc1772bes6-trpbf Linear Technology Corporation, ltc1772bes6-trpbf Datasheet - Page 11

• Manufacturer Part Number: ltc1772bes6-trpbf
• Description: Constant Frequency Current Mode Step-down Dc/dc Controller In Sot-23
• Manufacturer: Linear Technology Corporation

PACKAGE
TYPICAL APPLICATIO
3.85 MAX
0.20 BSC
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
2.62 REF
DATUM ‘A’
RECOMMENDED SOLDER PAD LAYOUT
DESCRIPTION
MAX
0.62
PER IPC CALCULATOR
LTC1772 High Efficiency, Small Footprint 3.3V to 1.8V/0.5A Regulator
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 represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
R4
10k
C3
220pF
0.30 – 0.50 REF
0.95
REF
U
U
C1: TAIYO YUDEN CERAMIC
C2: SANYO POSCAP 6TPA47M
D1: MOTOROLA MBRM120T3
1.22 REF
1.4 MIN
1
2
3
LMK325BJ106K-T
I
GND
V
TH
FB
/RUN
(Reference LTC DWG # 05-08-1636)
LTC1772
SENSE
6-Lead Plastic TSOT-23
PGATE
0.09 – 0.20
V
(NOTE 3)
IN
–
S6 Package
6
5
4
2.80 BSC
L1: COILTRONICS UP1B-100
M1: Si3443DV
R1: DALE 0.25W
1.00 MAX
1.50 – 1.75
(NOTE 4)
R1
0.15Ω
M1
0.80 – 0.90
D1
10µH
0.95 BSC
L1
+
C1
10µF
10V
C2
47µF
6V
PIN ONE ID
2.90 BSC
(NOTE 4)
R2
100k
R3
80.6k
1.90 BSC
1772 TA02
V
3.3V
V
1.8V
0.5A
IN
OUT
S6 TSOT-23 0302
0.01 – 0.10
0.30 – 0.45
6 PLCS (NOTE 3)
LTC1772
11
1772fb