EVAL6730 Datasheet, PDF (2/9 Pages) STMicroelectronics – L6730 demoboard realizes in a four layer PCB a step-down DC/DC converter and shows

Features
1
Features
Figure 1. Demoboard schematic
EVAL6730
VIN
GIN
TP1
VCC
GNDCC
TP2
TP3
3
2 G1
1
VCCDR
R22
R23
D1 R1
C1
R2
VCCDR BOOT OCH
R3
1
2
EAREF ¹⁸
9
15
12
3
G2
C7
VCC
U1
C8
R4
19
C9
SGND ⁵
L6730
C21
TMASK ⁴
S/O/U ₃
1 11 7
C2
C3
SYNCH
2 ^{HGATE R18}
14
PHASE Q1-3
13
LGATE ^R19
17
Q4-6 ^D2
16
PGND
PGOOD
20
SS
8
OSC
C15
10
6
R17
C4-C6
L1
R21
C20
R20
VCCDR
SYNCH
VOUT
C16-C19
GOUT
PWRGD
PGDelay
OCL COMP
VFB
S1 R5
S2 ^R6
S3 ^R7
S4 ^R8
S5 ^R9
S6R10
C10
C12R13
R12 C11
C13
R14
S7R11
R16
R15 C14
STATE
A
B
C
D
E
F
G
H
SW ON
S7
S1-S7
S2-S7
S3-S7
S4-S7
S5-S7
S6-S7
S1
Table 1. Demoboard part list
Reference
Value
R1
820 Ω
R2
0Ω
R3
N.C.
R4
10 Ω 1% 100 mW
R5
11 KΩ 1% 100 mW
R6
6.2 KΩ 1% 100 mW
R7
4.3 KΩ 1% 100 mW
R8
2.7 KΩ 1% 100 mW
R9
1.8 KΩ 1% 100 mW
R10
1.2 KΩ 1% 100 mW
R11
2.7 KΩ 1% 100 mW
R12
1 KΩ
R13
2.7 KΩ 1% 100 mW
2/9
Manufacturer
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Neohm
Package
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
SMD 0603
Supplier
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD
IFARCAD