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The TPS62135 and TPS62136 are 4-A, synchronous, step-down converters in 3 mm × 2 mm, 11-pin QFN packages. The TPS62135EVM-698 (PWR698-001) uses the TPS62135 integrated circuit (IC) which operates with a nominal switching frequency of 2.5 MHz. The TPS62136EVM-698 (PWR698-002) uses the TPS62136 IC which operates with a nominal switching frequency of 1 MHz.
Table 1-1 provides a summary of the TPS6213xEVM-698 performance specifications. All specifications are given for an ambient temperature of 25°C.
| Specification | Test Conditions | MIN | TYP | MAX | Unit | |
|---|---|---|---|---|---|---|
| Input voltage | 3 | 17 | V | |||
| Output voltage setpoint | VSEL = High | 5 | V | |||
| VSEL = Low | 3.3 | V | ||||
| Output current | 0 | 4 | A | |||
The printed-circuit board (PCB) for this EVM is designed to accommodate the adjustable voltage version of this integrated circuit (IC). On the EVM, additional input and output capacitors can be added, the soft-start time can be changed, the tracking voltage and the input voltage at which the IC turns on can be adjusted. Finally, the loop response of the IC can be measured.
