Datasheet

Introduction
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1 Introduction
The TPS73401DRVEVM-527 evaluation module (EVM) helps designers evaluate the operation and
performance of the TPS73401 LDO in the 2mm x 2mm SON-6 package. The TPS73401 is a 250mA,
micropower, linear regulator.
1.1 Related Documentation From Texas Instruments
TPS73401 datasheet (SBVS089)
1.2 TPS73401DRVEVM Specifications
Input voltage range, Vin 2.7 V to 6.5 V
Output voltage range, Vout 1.25 V to 6.2 V
Operating temperature 85 °C
2 Setup
This chapter describes the jumpers and connectors on the EVM as well as how to properly connect, setup,
and use the TPS73401EVM.
2.1 Input / Output Connector Descriptions
2.1.1 J1 –VIN
This is the positive input supply voltage. The leads to the input supply should be twisted and kept as short
as possible to minimize EMI transmission. Additional bulk capacitance should be added between J1 and
J2 if the supply leads are greater than six inches. An additional 47µF or greater capacitor improves the
transient response of the TPS73401 and helps to reduce ringing on the input when long supply wires are
used.
2.1.2 J2 – GND
This is the return connection for the input power supply of the regulator.
2.1.3 J3 – VOUT
This is the positive connection from the output. Connect this pin to the positive input of the load.
2.1.4 J4 – GND
This is the return connection for the output.
2.1.5 J5 – ENABLE
This jumper is used to enable or disable the output of the TPS73401. Placing a shorting jumper between
pins 1 and 2 ('ON' position) will enable the TPS73401. Placing the shorting jumper between pins 2 and 3
('OFF' position) will disable the TPS73401.
2.1.6 J6 – Output Voltage Selection
This jumper is used to select the output voltage of the TPS73401. The jumper selects different feedback
resistors to change the output voltage setting. The output voltage is set by inserting a shorting jumper
across two pins of JP2. The pre-programmed output voltages are configured as shown in Table 1.
2
TPS73401DRV EVM SLVU333AAugust 2009Revised March 2012
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