SNVU773A March 2021 – April 2022 LM25148 , LM25148-Q1 , LM25149 , LM25149-Q1 , LM5148 , LM5148-Q1 , LM5149 , LM5149-Q1
Table 2-1 lists the electrical characteristics.
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
INPUT CHARACTERISTICS | ||||||
Input voltage range, VIN | Operating | 5.5 | 12 | 36 | V | |
Input current, no load, IIN-NL | IOUT = 0 A, PFM tied to VDDA, UVLO removed | VIN = 12 V | 12 | µA | ||
VIN = 24 V | 9 | |||||
VIN = 36 V | 9 | |||||
Input current, shutdown, IIN-OFF | VEN = 0 V | VIN = 12 V | 3 | µA | ||
OUTPUT CHARACTERISTICS | ||||||
Output voltage, VOUT(1) | 4.95 | 5 | 5.05 | V | ||
Output current, IOUT | VIN = 5.5 V to 36 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 = 5.5 V to 36 V | 1% | ||||
Output voltage ripple, VOUT-AC | VIN = 12 V, IOUT = 8 A | 5 | mVrms | |||
Output overcurrent protection, IOCP | VIN = 12 V | 10 | A | |||
Soft-start time, tSS | 3 | ms | ||||
SYSTEM CHARACTERISTICS | ||||||
Switching frequency, FSW-nom | VIN = 12 V | 2.1 | MHz | |||
Half-load efficiency, ηHALF(1) | IOUT = 4 A | VIN = 8 V | 94.3% | |||
VIN = 12 V | 92.9% | |||||
VIN = 18 V | 90.5% | |||||
Full load efficiency, ηFULL | IOUT = 8 A | VIN = 8 V | 93.5% | |||
VIN = 12 V | 92.8% | |||||
VIN = 18 V | 90.7% | |||||
LM25149-Q1 junction temperature, TJ | –40 | 150 | °C |