Datasheet

0.01 0.1 1 10 100 1000

Load Current (mA)

100

Efficiency (%)

V = 12 V

V = 17 V

V = 5 V

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TPS62125EVM-044 Test Results

J1 – VIN Positive input connection from the input supply for the EVM.

J2 – S+/S- Input voltage sense connections. Measure the input voltage at this point.

J3 – GND Return connection from the input supply for the EVM.

J4 – VOUT Output voltage connection.

J5 – S+/S- Output voltage sense connections. Measure the output voltage at this point.

J6 – GND Output return connection.

J7 – PG/GND The PG output appears on pin 1 of this header with a convenient ground on pin 2.

JP1 – EN EN pin input jumper. Place the supplied jumper across ON and EN to turn on the IC.

Place the jumper across OFF and EN to turn off the IC. Do not install the supplied

jumper to utilize the adjustable enable threshold voltage feature of the IC.

JP2 – PG PG pin pullup voltage jumper. Place the supplied jumper on JP2 to connect the PG pin

Pullup Voltage pullup resistor to Vout. Alternatively, the jumper can be removed and a different

voltage can be supplied on pin 1 to pull up the PG pin to a different level. This

externally applied voltage must remain below 12 V.

2.2 Setup

To operate the EVM, set jumpers JP1 through JP2 to the desired positions per Section 2.1. Connect the

input supply to J1 and J3 and connect the load to J4 and J6.

3 TPS62125EVM-044 Test Results

This section provides test results of the TPS62125EVM-044.

Figure 1. Efficiency (R1, R2, and R3 not installed. JP1 connected between ON and EN.)

SLVU659A–March 2012–Revised March 2012 TPS62125EVM-044 Evaluation Module

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