W83321G Nuvoton Technology Corporation of America, W83321G Datasheet - Page 9

• Manufacturer Part Number: W83321G
• Description: IC BUCK SYNC ADJ 8SOIC
• Manufacturer: Nuvoton Technology Corporation of America
• Type: Step-Down (Buck)r

Specifications of W83321G

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5 V
• Frequency - Switching: 250kHz
• Voltage - Input: 5V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -

8. LAYOUT PLACEMENT
Layout Notes:
C9
1uF
1.Put Q1 and Q2 as close as possible and using wide,short
2.Put C2 and C3 to be near the Q1 drain and Q2 source nodes.
3.Put C1 as close as to BOOT pin.
4.Put C9 as close as to VCC pin.
printed circuit traces between Q1 source and Q2 drain.
VCC
W83321S
BOOT
PIN1
C1 0.1uF
G
S
- 9 -
D
G
S
Q2
D
Q1
Publication Release Date: January, 2006
L1
W83321S/W83321G
1uF
C3
C6
2000uF
C2
2000uF
C7
2000uF
Revision 0.51