Datasheet

1 Description ......................................................................................................................... 6

1.1 Typical Application ...................................................................................................... 6

1.2 Features .................................................................................................................. 6

2 Electrical Performance Specifications ................................................................................... 7

3 Schematic .......................................................................................................................... 8

4 Test Setup ........................................................................................................................ 10

4.1 Test Equipment ........................................................................................................ 10

4.2 Recommended Test Setup ........................................................................................... 11

5 Configuration .................................................................................................................... 11

5.1 Current Limit Trip Selection (J8: Trip Select) ....................................................................... 12

5.2 Frequency Selection (J7: TON Select) .............................................................................. 12

5.3 Overshoot Reduction Selection (J9: OSRTM Select) ............................................................. 12

5.4 VID Bits Selection(S1) ................................................................................................. 12

5.5 Sleep Mode Selection (SLP) ......................................................................................... 13

5.6 1.2-V Output Voltage Option (J10: Vout selection) ................................................................ 13

6 Test Procedure .................................................................................................................. 13

6.1 Line/Load Regulation and Efficiency Measurement Procedure .................................................. 13

6.2 List of Test Points ...................................................................................................... 13

6.3 Equipment Shutdown .................................................................................................. 14

7 Performance Data and Typical Characteristic Curves ............................................................ 14

7.1 Efficiency ................................................................................................................ 14

7.2 Load Regulation ........................................................................................................ 15

7.3 Line Regulation ......................................................................................................... 15

7.4 Current Monitor Voltage ............................................................................................... 16

7.5 Output Ripple ........................................................................................................... 16

7.6 Switching Node ......................................................................................................... 17

7.7 Output Transient ....................................................................................................... 17

7.8 Turn On Waveform .................................................................................................... 18

7.9 Turn Off Waveform .................................................................................................... 18

7.10 Bode Plot ................................................................................................................ 19

8 EVM Assembly Drawing and PCB Layout ............................................................................. 19

9 Bill of Materials ................................................................................................................. 24

SLVU358–February 2010 Table of Contents

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