Datasheet

ENA ENA

Disabled Enabled

SR SR SR SR

1V/2.5ns

1V/4ns 1V/6ns

1V/1.2ns

Delay Delay Delay Delay

2.2ms 47ms 150ms 200ms

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Setup

Figure 2. Enable Jumper Settings

JP3 – Slew Rate is the jumper used to set the slew rate for the switch pin. The device slew rate should be

set between 15 ns and 200 ns. Slower slew rates can improve EMI performance, but they increase

switching losses. Jumper resistors allow the slew rate to be set to four set points. The user can set a

specific slew rate by changing one of the slew rate set resistors – R8, R9, or R10. Note that the slew rate

should be set to 1 V/1.2 ns if the EVM is configured for a 2-MHz switching frequency.

Figure 3. Slew Rate Settings

JP4 – Delay is the jumper used to set the delay time to assert the RESET pin low after the supply has

exceeded the programmed Vreg_RST voltage. The delay may be programmed in the range of 2.2 ms to

200 ms. Jumper capacitors allow the reset delay to be set to four set points. The user can set a specific

delay time by changing one of the delay capacitors – C13, C14, or C15.

Figure 4. Reset Delay Time Settings

2.2 Setup

The input voltage range for the converter is 3.6 V to 48 V. A load should be applied to the output terminal

for proper operation.

SLVU348–October 2009 TPS54162EVM

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