Datasheet

 2014-2016 Microchip Technology Inc. DS20005308C-page 31
MCP16331
FIGURE 7-2: Non-Inverting Buck-Boost Application, 4.5V-18V V
IN
to 12V V
OUT.
Component Value Manufacturer Part Number Comment
C
IN
2 x 10 µF TDK Corporation C3225X7R1H106M250AC Capacitor, Ceramic, 10 µF, 50V, 20%,
X7R, SMD, 1210
C
OUT
2 x 10 µF TDK Corporation C3216X7R1E106K160AB Capacitor, Ceramic, 10 µF, 25V, 10%,
X7R, SMD, 1206
L 56 µH Coilcraft
®
MSS1048-563MLC MSS1048-563MLC, 56 µH, Shielded
Power Inductor
R
TOP
140 k  Panasonic
®
- ECG ERJP03F1403V Resistor, 140 KΩ, 1/10W, 1%, 0603, SMD
R
BOT
10 k  Panasonic - ECG ERJ-3EKF1002V Resistor, 10.0 KΩ, 1/10W, 1%, 0603, SMD
R1 4.7  Panasonic - ECG ERJ-B3BF4R7V Resistor, TKF, 4.7R, 1%, 1/10W, SMD,
0805
D1, D2 STPS2L60A STMicroelectronics STPS2L60A Schottky, 60V, 2A, SMA
D3 1N4148 Diodes
Incorporated
®
1N4148WS-7-F Diode Switch, 75V, 200 mW, SOD-323
D
Z
7.5V Diodes
Incorporated
BZT52C7V5-7-F Zener Diode, 7.5V, 500 mW, SOD-123
C
B
100 nF AVX Corporation 0603YC104KAT2A Capacitor, 0.1 µF, 16V, Ceramic, X7R,
0603, 10%
Q1 FDN359AN Fairchild
Semiconductor
®
FDN359AN Transistor, FET N-CH, FDN359AN, 30V,
2.7A, 460 mW, SOT-23-3
U1 MCP16331 Microchip
Technology Inc.
MCP16331-E/CH
MCP16331-E/MNY
MCP16331, 500 kHz Buck Switcher,
50V, 500 mA
V
IN
EN
GND
SW
V
IN
4.5V-18V
V
OUT
12V
C
OUT
2x10µF
C
IN
2x10µF
L
56
µH
140 k
10 k
OFF
ON
R
T
R
B
MCP16331
2A, 60V
D1
BST
1N4148
C
B
0.1 µF
FB
D2
Q1
D3
DZ
7V5
R
1
4.7 
U1