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Connector and Test Point Descriptions

3 Connector and Test Point Descriptions

3.1 Enable Jumpers/Switches: TLV62065EVM

3.1.1 J1, VIN

This header is the positive connection to the input power supply. The power supply must be connected

between J1 and J3 (GND). Twist the leads to the input supply, and keep them as short as possible. The

input voltage must be between 2.9 V and 5.5 V.

3.1.2 J2, S+/S–

J2 S+/S– are the sense connections for the input of the converter. Connect a voltmeter, or the sense

connection of a power supply or oscilloscope, to this header.

3.1.3 J3, GND

This header is the return connection to the input power supply. Connect the power supply between J3 and

J1 (VIN). Twist the leads to the input supply, and keep them as short as possible. The input voltage must

be between 2.9 V and 5.5 V.

3.1.4 J4, VOUT

This header is the positive output of the step-down converter. The output voltage of the TLV62065 is

adjustable with feedback resistors R1 and R2. On the EVM, the output voltage is set to 1.8 V by default.

NOTE: A feed-forward capacitor (C5) is required. Refer to the TLV62065 data sheet (SLVSAC4) for

detailed information.

3.1.5 J5, S+/S–

J5 S+/S– are the sense connections for the output of the converter. Connect a voltmeter, or the sense

connection of an electronic load or oscilloscope, to this header.

3.1.6 J6, GND

J6 is the return connection of the converter. A load can be connected between J6 and J4 (V

OUT

). The

converter is capable of carrying a load current up to 2.0 A.

3.1.7 JP1, EN

This jumper enables/disables the TLV62065 on the EVM. Shorting jumper JP1 between the center pin and

On turns on the unit. Shorting the jumper between center pin and Off turns off the unit. A 1-MΩ pullup

resistor is connected between VIN and EN. Removing jumper JP1 turns on the converter.

SLVU424–December 2010 TLV62065EVM-719

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