FAN5350_08 FAIRCHILD [Fairchild Semiconductor], FAN5350_08 Datasheet - Page 3

• Manufacturer Part Number: FAN5350_08
• Description: 3MHz, 600mA Step-Down DC-DC Converter in Chip-Scale and MLP Packaging
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

© 2007 Fairchild Semiconductor Corporation
FAN5350 Rev. 1.0.3
Pin Configurations
Pin Definitions
WLCSP
MLP
Pin #
Pin #
C1
C3
A1
A3
B2
1
2
3
4
5
6
Figure 4. WLCSP - Bumps Facing Down
Name
Name
PGND
AGND
GND
SW
SW
EN
EN
V
FB
FB
V
IN
IN
VIN
EN
Description
Power Supply Input.
Ground Pin. Signal and power ground for the part.
Enable Pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled
when >1.2V. Do not leave this pin floating.
Feedback Analog Input. Connect directly to the output capacitor.
Switching Node. Connection to the internal PFET switch and NFET synchronous rectifier.
Description
Power Ground Pin. Power stage ground. Connect PGND and AGND together via the board
ground plane.
Analog Ground Pin. Signal ground for the part.
Feedback Analog Input. Connect directly to the output capacitor.
Enable Pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled
when >1.2V. Do not leave this pin floating.
Switching Node. Connection to the internal PFET switch and NFET synchronous rectifier.
Power Supply Input.
C1
A1
B2
C3
A3
GND
SW
FB
Figure 6. 3x3mm MLP - Leads Facing Down
PGND
AGND
FB
1
2
3
(GND)
3
P1
6
5
4
Figure 5. WLCSP - Bumps Facing Up
EN
VIN
SW
GND
SW
FB
C3
A3
B2
C1
A1
VIN
EN
www.fairchildsemi.com