SNVU628 February 2020 LM5155 , LM5155-Q1 , LM51551 , LM51551-Q1
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| INPUT CHARACTERISTICS | |||||
| Input voltage Range VIN | Normal operation, 2 A full load | 6 | 12 | 18 | V |
| Maximum transient voltage, 2 A full load | 5 | 42 | V | ||
| Power derating from 2 A down to 0.8 A | 3 | 5 | V | ||
| Input voltage turn on VIN(ON) | Adjusted by the UVLO/SYNC resistors | 2.9 | V | ||
| Input voltage turn off VIN(OFF) | 2.8 | V | |||
| OUTPUT CHARACTERISTICS | |||||
| Output Voltage VOUT | 12 | V | |||
| Maximum Output Current IOUT | VIN > 5 V | 2 | A | ||
| 3 V < VIN < 5 V | 0.8 | 2 | A | ||
| Output Voltage VOUT_OV | 13.2 | V | |||
| SYSTEM CHARACTERISTICS | |||||
| Switching Frequency | 2.2 | MHz | |||
| External Clock Synchronization | Recommended. IC can synchronize to wider frequency range | 1.8 | 2.5 | MHz | |
| Full Load Efficiency | 88 | % | |||
| LM5155-Q1 Junction Temperature, TJ | -40 | 150 | C | ||