Datasheet

BUCK/BOOST CONVERTER
PICtail™ PLUS DAUGHTER
BOARD USER’S GUIDE
© 2008 Microchip Technology Inc. DS70336A-page 53
Appendix 1. Schematics and Layouts
This appendix provides the board layout followed by schematics for the Buck/Boost
Converter PICtail Plus Daughter Board.
FIGURE 1-1: BOARD LAYOUT
BUCK1+
GND
BUCK2+
Buck/Boost Converter
PICtail Plus Daughter Board
GND
BOOST+
GND
Buck 1
Buck 2
Boost
U1
C15
U2
TX2
Q6
Q7
C13
R21
Q8
R22
R23
D5
R24
R25
C14
D6
R26
C16
C19
D8
TX1
R27
R28
C17
C18
R29
R30
J5
Q1
Q2
C6
R3
Q3
R4
R5
D1
R6
R7
C7
D2
R8
C9
C12
D4
R9
R10
C10
C11
R11
R12
J4
R45
R47
D12
R58
C30
R39
D16
D7
R40
L4
Q11
J15
R41
R42
R31
R43
R20
Q13
R44
R46
D15
D11
R57
J11
C29
D3
Q12
C8
L3
R32
R33
R37
L5
C28
J14
C5
Q14
C24
C25
R52
D9
R53
R54
C26
C27
J8
R55
R56
D13
R59
D10
R13
R14
C20
R15
Q4
U3
R34
J1
J2
J3
R1
R2
PWM1H
PWM1L
PWM2H
PWM2L
PWM3H
D17
D18
CS 1
CS 2
CS 3
R35
R36
D14
J9
RP1
J10
R60
V+
GND
J6
C22
J12 J13
C2
C3
C4