Datasheet

MCP1640 12V/50 mA TWO CELLS
INPUT BOOST CONVERTER
REFERENCE DESIGN
© 2011 Microchip Technology Inc. DS51999A-page 25
Appendix B. Bill of Materials
TABLE B-1: BILL OF MATERIALS (BOM)
(1)
Qty Reference Description Manufacturer Part Number
1C
IN
CAP. CER 10 µF 6.3V X5R 20% 0603 TDK
®
Corporation C1608X5R0J106M
1C
OUT
CAP. CER 10 µF 16V X5R 0805 TDK Corporation C2012X5R1C106M
1C
L
CAP. CER 2.2 µF 6.3V X5R 20% 0603 TDK Corporation C1608X5R0J225M
1 D SCHOTTKY RECT. 40V 0.5A SOD323 NXP Semiconductors PMEG4005AEA,115
0 J1, J2 DO NOT POPULATE
CONN. HEADER 2POS .100" R/A TIN
Molex
®
90121-0122
1 L INDUCTOR POWER 4.7 µH 1.1A SMD TDK Corporation VLS3015ET-4R7M
1 PCB RoHS-compliant bare PCB, MCP1640
12V/50 mA Two Cells Input Boost
Converter Reference Design
— 104-00386
1 Q MOSFET N-CH 30V 2.2A SSOT3 Fairchild Semiconductor
®
FDN337N
1R
E
RES. 1.0M OHM 1/10W 5% 0603 SMD Panasonic
®
– ECG ERJ-3GEYJ105V
1R
S
RES. 300 OHM 1/10W 5% 0603 SMD YAGEO
®
RC0603JR-07300RL
0R
L
DO NOT POPULATE
RES. 1.0k OHM 1/10W 5% 0603 SMD
Panasonic – ECG ERJ-3GEYJ102V
1R
B
RES. 180k OHM 1/10W .5% 0603 SMD YAGEO RT0603DRD07180KL
1R
T
RESISTOR 1.60M OHM 1/10W 1% 0603 Panasonic – ECG ERJ-3EKF1604V
1 U1 MCP1640 PWM Synchronous Boost
Converter – SOT23-6
Microchip Technology Inc. MCP1640BT-I/CHY
4V
IN
, V
OUT
,
GND(s)
PC TEST POINT TIN SMD Harwin PLC. S1751-46R
4 — 3M – SJ5382TRANS – FEET, STICK ON,
PK144
3M SJ5382TRANS
Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released
BOM, used in manufacturing, uses all RoHS-compliant components.