SNVU820 February 2022 LM5149-Q1
Table 2-1 lists the electrical characteristics.
Parameter | Test Conditions | MIN | TYP | MAX | Unit | |
---|---|---|---|---|---|---|
INPUT CHARACTERISTICS | ||||||
Input voltage range, VIN | Operating | 15 | 48 | 72 | V | |
Input current, no load, IIN-NL | IOUT = 0 A, PFM tied to VDDA, UVLO removed | VIN = 24 V | 84 | µA | ||
VIN = 48 V | 55 | |||||
VIN = 72 V | 46 | |||||
Input current, shutdown, IIN-OFF | VEN = 0 V | VIN = 48 V | 3 | µA | ||
OUTPUT CHARACTERISTICS | ||||||
Output voltage, VOUT(1) | 11.88 | 12 | 12.12 | V | ||
Output current, IOUT | VIN = 15 V to 72 V, Airflow = 100 LFM(2) | 0 | 8 | A | ||
Output voltage regulation, ΔVOUT | Load regulation | IOUT = 0 A to 8 A | 0.1% | |||
Line regulation | VIN = 15 V to 72 V | 1% | ||||
Output voltage ripple, VOUT-AC | VIN = 48 V, IOUT = 8 A | 12 | mVrms | |||
Output overcurrent protection, IOCP | VIN = 48 V | 10 | A | |||
Soft-start time, tSS | 3 | ms | ||||
SYSTEM CHARACTERISTICS | ||||||
Switching frequency, FSW-nom | VIN = 48 V | 400 | kHz | |||
PFM Light-load efficiency, ηLIGHT(1) | IOUT = 1 A | VIN = 24 V | 94.8% | |||
VIN = 48 V | 90.5% | |||||
VIN = 60 V | 89.1% | |||||
Half-load efficiency, ηHALF | IOUT = 4 A | VIN = 24 V | 97.0% | |||
VIN = 48 V | 95.1% | |||||
VIN = 60 V | 94.1% | |||||
Full load efficiency, ηFULL | IOUT = 8 A | VIN = 24 V | 96.2% | |||
VIN = 48 V | 95.4% | |||||
VIN = 60 V | 94.9% | |||||
LM5149-Q1 junction temperature, TJ | –40 | 150 | °C |