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Semtech SC202A EVB User Manual

For the sc202a synchronous step down converter
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POWER MANAGEMENT
Description
SC202A EVB is the EVB (Evaluation Board) for the SC202A
Synchronous Step Down Converter in the MLPQ 2.5×3.0
(mm) 13-lead package. The EVB is designed to provide a
working demonstration of the SC202A.
This guide contains information relating to the usage of
the Rev. 2 version of the EVB and should be used in con-
junction with the datasheet for the device. Component
values on the EVB may vary per specifi c customer require-
ments. The datasheet contains detailed information
including the electrical characteristics and the detailed
features of the device.
This guide can be used to familiarize the user with the
features of the device and for testing electrical character-
istics of particular interest to the reader.
SC202A EVB — R2
Revision 2.0
Feature Content
•
Schematic
•
Bill of Materials
•
Layout Drawings
•
Operation
© 2011 Semtech Corporation
SC202A EVB
Evaluation Board
User's Guide
1

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Summary of Contents for Semtech SC202A EVB

  • Page 1 SC202A EVB Evaluation Board User’s Guide POWER MANAGEMENT Description Feature Content SC202A EVB is the EVB (Evaluation Board) for the SC202A • Schematic Synchronous Step Down Converter in the MLPQ 2.5×3.0 • Bill of Materials (mm) 13-lead package. The EVB is designed to provide a •...
  • Page 2 SC202A EVB Schematic 10µF – S C 202 A Voltage Selection CTL3 VOUT CTL2 10µF CTL1 No_pop – CTL0 BODE- BODE+ No_pop No_pop No_pop No_pop...

  • Page 3: Bill Of Materials

    SC202A EVB Bill of Materials Reference Value Footprint Hardware Notes C1, C2 10μF 0603 Pads are included to add a feed-forward capacitor when no-pop external resistors are used. banana jack pair banana jack pair Jumpers are used to set the CTL pins in either a high or low JP1, JP2, JP3, JP4 3 pos.
  • Page 4 SC202A EVB Layout Drawings Top Layer with Silkscreen Bottom Layer with Silkscreen...

  • Page 5: Operation

    SC202A EVB Operation The SC202A EVB provides several features that make it Table 2 — Jumper States for Each Output Setting easy for the user to evaluate performance without adding Output external circuitry or requiring unique test equipment. All Voltage (V) reference designators from the schematic drawing are used in these descriptions.
  • Page 6 SC202A EVB Operation (continued) Programming Other Output Voltages Other Test Points and Components The SC202A datasheet describes a method for program- LX Switching Node ming output voltages that are not included in the selection This evaluation board includes other test points to provide list.

  • Page 7: Contact Information

    IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold Semtech and its offi cers, employees, subsidiaries, affi liates, and distributors harmless against all claims, costs damages and attorney fees which could arise.

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