SNVA870A March 2019 – April 2020 LM25143 , LM25143-Q1 , LM5143 , LM5143-Q1 , LM5143A-Q1
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| INPUT CHARACTERISTICS | ||||||
| Input voltage range, VIN | Operating | 8 | 12 | 18 | V | |
| Transients | 6 | 36 | ||||
| Input current, no load, IIN(NL) | IOUT = 0 A, FPWM mode | VIN = 8 V | 132 | mA | ||
| VIN = 12 V | 130 | |||||
| VIN = 18 V | 125 | |||||
| Input current, disabled, IIN(OFF) | VEN = 0 V | VIN = 12 V | 16 | µA | ||
| OUTPUT CHARACTERISTICS | ||||||
| Output voltage, VOUT(1) | 4.95 | 5.0 | 5.05 | V | ||
| Output current, IOUT | VIN = 8 V to 18 V, Airflow = 100 LFM(2) | 0 | 30 | A | ||
| Output voltage regulation, ΔVOUT | Load regulation | IOUT = 0 A to 30 A | 0.5% | |||
| Line regulation | VIN = 8 V to 18 V | 0.5% | ||||
| Output voltage ripple, VOUT(AC) | VIN = 12 V, IOUT = 30 A | 10 | mVrms | |||
| Output overcurrent protection, IOCP | VIN = 12 V | 40 | A | |||
| Soft-start time, tSS | CSS = 100 nF | 3 | ms | |||
| Hiccup time, tRES | CRES = 220 nF | 13 | ms | |||
| SYSTEM CHARACTERISTICS | ||||||
| Switching frequency, FSW | VIN = 12 V | 2.1 | MHz | |||
| Half-load efficiency, ηHALF(1) | IOUT = 15 A | VIN = 8 V | 93.5% | |||
| VIN = 12 V | 92.3% | |||||
| VIN = 18 V | 89.5% | |||||
| Full load efficiency, ηFULL | IOUT = 30 A | VIN = 8 V | 91.3% | |||
| VIN = 12 V | 91.75% | |||||
| VIN = 18 V | 90% | |||||
| LM5143-Q1 junction temperature, TJ | –40 | 150 | ºC | |||