Dc716 - Schematic

1
2
REVISION HISTORY
ECO
REV
1
1
DESCRIPTION
DATE
REBUILD WITH CHANGE
09/29/09
APPROVED
K.Szolusha
VOUT
JP1
R1
OPT
0402
3
E1
+
C1
10uF
50V
VIN
N/C
VSW
5
BIAS
7
FB
8
GND
GND
E2
U1
LT3470ETS8
A
0603
1206
X7R
2
C5
OPT
6.3V
C2
1uF
50V
1206
E9
C4
22uF
X5R
TOKO D52LC
6
3
BOOST
VIN
7V TO 40V
SHUTDOWN
[email protected]
L1 33uH
C6
22pF
NPO
0402
R3
200k
1%
0402
R2 604k 1%
0402
4
1
1
VOUT ENABLE
0.22uF
X5R 0402
SHDN
A
2
C3
B
B
CUSTOMER NOTICE
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
APPROVALS
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
1
TECHNOLOGY
PCB DES. MIKEI
ENG.
KEITHS
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
40V MICROPOWER SOT23 BUCK REGULATOR WITH
INTEGRATED BOOST AND CATCH DIODES
SIZE
A
DATE:
IC NO.
REV
LT3470ETS8
DEMO CIRCUIT 716B
Tuesday, September 29, 2009
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1
SHEET
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