Schematic Diagram - Linear Technology LT3512 Demo Manual

PARTS LIST
ITEM QTY REFERENCE
12 1 R5
13 1 R6
14 1 R7
15 1 R8
16 1 T1
17 1 U1
Additional Demo Board Circuit Components
1 1 C6
2 0 C7 (OPT)
3 1 D3
4 1 R9
Hardware-For Demo Board Only
1 6 E1-E6

SCHEMATIC DIAGRAM

5
D
VIN
E2 E2
36V - 75V
+ C5 + C5
10uF 10uF
100V 100V
(OPT)
GND
E4 E4
EN / UVLO
E5 E5
C
B
A
5
PART DESCRIPTION
RES., CHIP , 31.6k, 5%, 0402
RES., CHIP , 75k, 1%, 0402
RES., CHIP , 16.9k, 1%, 0402
RES., CHIP , 10k, 1%, 0402
TRANSFORMER, 175μH
I.C., LT3512EMS, 16-PIN MSOP
CAP ., X7R, 1000pF 2000V, 10%,1206
CAP ., 0402
DIODE, SCHOTTKY, SOD-323
RES., CHIP , 20, 1%, 0402
TESTPOINT, TURRET, 0.095"
4
R3 R3
806K 806K
0805
14
RFB
1
EN/UVLO
R5 R5
U1 U1
31.6K 31.6K
7
NC LT3512EMS LT3512EMS
16
SW
11
TC
R6 R6 6
BIAS
75K 75K
R7 R7
16.9K 16.9K
C7 C7
R8 R8
(OPT) (OPT)
10K 10K
C10 C10
3300pF 3300pF
4
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 representation
that the interconnection of its circuits as described herein will not infringe on existing patent rights.
DEMO MANUAL DC1803A
3
T1 T1
750311559 750311559
4
C2 C2
3
1uF 1uF
100V 100V
D4 D4 2
1206
MMSZ5266BTIG MMSZ5266BTIG
1
Lp = 175uH
D2 D2
R4 169K R4 169K
BAV21W BAV21W
C6 C6
0603 1000pF 1000pF
2000V 2000V
1206
D3 D3
R9 20 R9 20
1 2
CMDSH-3 CMDSH-3
C9 C9
4.7uF 4.7uF
16V 16V
0805
3
MANUFACTURER/PART NUMBER
VISHAY, CRCW040231K6JNED
VISHAY, CRCW040275K0FKED
VISHAY, CRCW040216K9FKED
VISHAY, CRCW040210K0FKED
WÜRTH ELEC., 750311559
LINEAR TECH., LT3512EMS
AVX 1206GC102KAT1A
CENTRAL SEMI., CMDSH-3 TR
VISHAY, CRCW040220R0FKED
MILL-MAX, 2501-2-00-80-00-00-07-0
2 1
D1 SBR1A40S3 D1 SBR1A40S3
VOUT+
2 1
VOUT+
+5V@500mA
E1 E1
5
C3 C3
6 D5 D5
47uF 47uF
CMHZ5236B CMHZ5236B
10V 10V
7 1210
VOUT-
VOUT-
E3 E3
8
BIAS
BIAS
E6 E6
TECHNOLOGY TECHNOLOGY TECHNOLOGY
HZ HZ HZ
WALKER B. WALKER B. WALKER B.
LT3512EMS LT3512EMS LT3512EMS
DEMO CIRCUIT 1803A DEMO CIRCUIT 1803A DEMO CIRCUIT 1803A
Friday, March 04, 2011 Friday, March 04, 2011 Friday, March 04, 2011
2 1
D
C
B
A
dc1803af
3