SLVU767A August 2012 – October 2021 TPS542951
A summary of the TPS542951EVM performance specifications is provided in Table 2-1. Specifications are given for an input voltage of VINx = 12 V and an output voltage of 3.3 V and 1.5 V, unless otherwise noted. The ambient temperature is 25°C for all measurement, unless otherwise noted.
| Specifications | Test Conditions | Min | Typ | Max | Unit | |
|---|---|---|---|---|---|---|
| Input voltage range (VINx) | (1) | 12 | 18 | V | ||
| Output voltages | VOUT1 | 3.3 | V | |||
| VOUT2 | 1.5 | |||||
| Operating frequency | VIN1, VIN2 = 12 V, IOUT1 = 1 A, IOUT2 = 1.5 A | 700 | kHz | |||
| Output current range | CH1 | 0 | 4 | A | ||
| CH2 | 0 | 2 | ||||
| Line regulation, VOUT1 | IOUT1 = 1 A, IOUT2 = 0 A, VIN1, VIN2= 6 V to 18 V | +0.25 , -0.55 | % | |||
| Line regulation, VOUT2 | IOUT2 = 1.5 A, IOUT1 = 0 A, VIN1, VIN2= 5 V to 18 V | +0.15, -0.35 | % | |||
| Load regulation, VOUT1 | VIN1, VIN2 = 12 V, IOUT1 = 0 A to 2 A | +0.4, -0.1 | % | |||
| Load regulation, VOUT2 | VIN1, VIN2 = 12 V, IOUT2 = 0 A to 3 A | +0.5, -0.05 | % | |||
| Over current limit, VOUT1 | VIN1 = 12 V, L1 = 2.2 μH | 2.7 | 3.9 | 4.5 | A | |
| Over current limit, VOUT2 | VIN2 = 12 V, L1 = 1.5 μH | 3.5 | 4.7 | 5.4 | A | |
| Output ripple voltage, VOUT1 | VIN1 = 12 V, IOUT1 = 2 A | 20 | mVPP | |||
| Output ripple voltage, VOUT2 | VIN2 = 12 V, IOUT2 = 3 A | 20 | mVPP | |||
| Maximum efficiency, VOUT1 | VIN1 = 6 V, IOUT1= 0.6 A | 94.1% | ||||
| Maximum efficiency, VOUT2 | VIN2 = 5 V, IOUT2= 0.5 A | 88.8% | ||||