18.3
Pinning
Pin No.
Pin
Name
Description
1
BOOT
Bootstrap for high-side gate driver. Connect a 0.1
μ
F or
greater ceramic capacitor from BOOT to SW pins.
2
VIN
Input Supply 4.5V to 23V. Must bypass with a suitably
large ceramic capacitor.
3
SW
Phase Node--Connect to external L-C filter..
4, 9 (Exposed
Pad)
GND
Ground.
5
FB
Feedback Input pin is connected to the converter output.
It is used to set the output of the converter to regulate to
the desired value via an internal res divider. For an
adjustable output, an external res divider is connected to
this pin.
6
COMP
Compensation Node. COMP is used to compensate the
regulation Control loop. Connect a series RC network
from COMP to GND. In some cases, an additional
capacitor from COMP to GND is required.
7
EN
Enable Input Pin. Logic high enables the converter; a
logic low forces the RT8253A into shutdown mode.
Attach this pin to VIN with a
100kΩ
pull up resistor for
automatic startup.
8
SS
Soft-Start Control Input. SS controls the soft-start period.
Connect a capacitor from SS to GND to set the soft-start
period. A 0.1
μ
F capacitor sets the soft-start period to
13.5ms.
Summary of Contents for VES1.1E
Page 21: ...5 1 Power management Power Management with Adaptor Power Management with PW25 PW26 ...
Page 22: ... Power Management with IPS16 IPS17 IPS60 PW05 Power Management with PW03 PW04 PW07 ...
Page 27: ...6 2 MSTAR block diagram ...
Page 40: ... Block Diagram of M88DS3002 14 3 Pin Assignment ...
Page 44: ......
Page 49: ...22 Connectors 22 1 SCART SC1 22 2 HDMI CN707 CN708 ...
Page 50: ... 22 3 VGA CN711 15 14 VERTICALSYNC 15 DOC CLOCK _ ...
Page 68: ......
Page 78: ...27 2 PSU ...
Page 79: ......