Datasheet

Introduction

1.2 FEATURES

The Buck/Boost Converter PICtail Plus Daughter Board provides the following

features:

1.2.1 Power Stages

• Two synchronous buck converter power stages

• One boost converter power stage

• Voltage/current measurement for digital control of buck converters

• Voltage/current measurement for digital control of boost converter

• Switchable, one 5Ω/5W resistive load on Buck Converter 1 output (VOUT1)

• Buck Converter 1 output (VOUT1) on J4 connector for external loading

• Buck Converter 2 output (VOUT2) on J5 connector for external loading

• Boost Converter output (VOUT3) on J8 connector for external loading

• Connector J9 for auxiliary power input

1.2.2 Additional Features

•5kΩ Potentiometer (RP1) connected via jumper J10

• Input voltage source selection via jumper J6

• Additional resistive load R46 via jumper J11

• Connectors J1 and J2 (Explorer 16/16-bit 28-pin Starter Development Board)

• PMBus™ Connector (J3)

1.2.3 Daughter Board Power

• Auxiliary power input (J9): +7V to +15V (+9V nominal)

• 9V power input is through input connectors J2 and J1

• LED power-on indicator (D14)

• LED output voltage indicators (D11, D12 and D13)

1.3 PRODUCT PACKAGE

The Buck/Boost Converter PICtail Plus Daughter Board kit consists of the following

items:

• Buck/Boost Converter PICtail Plus Daughter Board

• Buck/Boost Converter PICtail Plus Daughter Board CD

The CD consists of the application software, example code, Readme file and User’s

Guide.

Note: 9V input is supplied from the controller card (16-bit 28-pin Starter

Development Board or Explorer 16 Development Board). All 16-bit 28-pin

Starter Development Boards should have a blue wire connecting Pin 1 of

J1 to Pin 28 of J2. If no blue wire connects them, connect a wire between

them to supply the 9V input to the Buck/Boost Converter PICtail Plus

Daughter Board.