SC1485ITSTRT Semtech, SC1485ITSTRT Datasheet - Page 18

• Manufacturer Part Number: SC1485ITSTRT
• Description: IC PWM BUCK CTRLR DUAL 28TSSOP
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC1485ITSTRT

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.5 ~ 25 V
• Voltage - Input: 1.8 ~ 25 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Frequency - Switching: -
• Other names: SC1485ITSTR

In Figure 10, all components referenced to VSSA1 and VSSA2 have been placed and have been connected using
0.020” traces. Note that there are two separate traces, one for VSSA1 and one for VSSA2. Decoupling capacitors
C9 and C19 are as close as possible to their pins, as are VDDP decoupling capacitors C10 and C20. C10 and C20
should connect to the ground plane using two vias each.
POWER MANAGEMENT
2005 Semtech Corp.
NOT RECOMMENDED FOR NEW DESIGN
Figure 10: Example VSSA 0.020” Traces
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