Datasheet

MCP1640 SINGLE QUADRUPLE-A
BATTERY BOOST CONVERTER
REFERENCE DESIGN
 2010-2011 Microchip Technology Inc. DS51922B-page 21
Appendix B. Bill of Materials
TABLE B-1: BILL OF MATERIALS (BOM)
Qty Reference Description Manufacturer Part Number
1 AAAA
Battery
AAAA/E96 Alkaline Battery Energizer
®
E96BP-2
1 BATT1 AAAA Battery Holder Energizer -
2 C1, C2 CAP CER 10 µF 6.3V X7R 10% 0805 Taiyo Yuden
®
JMK212B7106KG-T
2 C3, C4 CAP CER 1.0 µF 10V X7R 0805 Taiyo Yuden LMK212B7105KG-T
1 D1 LED CHIPLED 570 nm GREEN 0603 SMD OSRAM Opto Semi-
conductors Inc
LG Q971-KN-1-0-20-R18
0 J3 DO NOT POPULATE
CONN HEADER 5POS .100 VERT TIN
Molex
®
Electronics 22-03-2051
1 L1 INDUCTOR POWER 4.7 µH Coilcraft EPL3015-472MLB
(XFL3012-472ME)
1 PCB RoHS Compliant Bare PCB,
MCP1640 Single Quadruple-A Battery
Boost Converter Reference Design
— 104-00318
1 Q1 MOSFET N-CH 60V 280 mA SOT-23 Fairchild
Semiconductor
®
NDS7002A
1 Q2 MOSFET P-CH 20V 1A SSOT3 Fairchild
Semiconductor
NDS332P
1 R1 RES 1M OHM 1/10W 5% 0603 SMD Stackpole Electronics
Inc
RMCF0603JT1M00
1 R2 RESISTOR 1.30M OHM 1/10W 1% 0603 Panasonic
®
– ECG ERJ-3EKF1304V
1 R3 RES 240k OHM 1/10W .1% 0603 SMD Panasonic – ECG ERA-3AEB244V
1 R4 RES 510k OHM 1/10W 1% 0603 SMD Yageo RC0603FR-07510KL
1 R5 RES 220k OHM 1/10W 5% 0603 SMD Panasonic – ECG ERJ-3GEYJ224V
1 R6 RES 330 OHM 1/10W 5% 0603 SMD Stackpole Electronics,
Inc.
RMCF0603JT330R
1 R7 RES 1k OHM 1/10W 5% 0603 SMD Stackpole Electronics,
Inc.
RMCF0603JT1K00
1 R8 RES 100k OHM 1/10W 5% 0603 SMD Stackpole Electronics,
Inc.
RMCF0603JT100K
0 R9 DO NOT POPULATE
RES 1M OHM 1/10W 5% 0603 SMD
Stackpole Electronics,
Inc.
RMCF0603JT1M00
5 TP1 – TP5 PC TEST POINT TIN SMD Harwin S1751-46R
1 S1 SWITCH TACT 6 mm 260GF SMT E-Switch, Inc TL3301NF260QG
1 U1 MCP1640 Synchronous Boost Converter -
SOT23-6
Microchip
Technology Inc.
MCP1640T-I/CHY
1 U2 PIC12F617 IC MCU 8BIT 3.5KB FLASH
8MSOP
Microchip
Technology Inc.
PIC12F617T-I/MS
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.