RT7080
Application Circuit 2 (Without buck converter for 8V to 15V input power)
V5V
7
C3
1µF
A
*
C4
1µF
C1
0.1µF6
5
C2
0.1µF4
12, 13, 15, 36,
41 (Exposed Pad)
D
2
V5V
V5VN
V1P8
V1P8N
PGND
27, 28
P
SW
FB
SWGND
31
34
33
SWGND
D
ISP_SCL
ISP_SDA
UART_RX
UART_TX
V5V
40
1
37
38
Fault 39
D
V5V
VSP 10
AD7
W
A
*
OVP
11
AD6
VCP
CPP
CPN
AD8
17
16
14
C5
0.1µF
ZD1 (Option)
11V
D
35
R2
C10 10
1µF
P
V5V
RT7080
VIN
VIN
18, 19
C8
D
P SWGND
DVSS
RSTN
P0_10
P0_11
P0_6
P0_7
P0_15
U
VILDO
30
4.7µF
A
*
21, 22
R1
10
V
IN
V
23, 24
Motor
25, 26
VIN
(1%)
VIN
(1%)
C6
0.1µF
D1 (Option)
Schottky
1nF to 10nF
A
*
V5V
DAC OUT 9
SW_F/R
8
AD9
V5D
A
*
Note :
1. C1, C2, C3 and C4 as close as possible to the IC.
2. C8 and C10 as close as possible to the IC and PGND.
3. C1, C2 : Option. C1 and C2 are the decoupling capacitors.
4. D1, ZD1 : Option. D1 and ZD1 are for the application of hot swapping.
5.
*
: AGND is a separate loop, do not connect to DGND and PGND.
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS7080-00 August 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
