ZHCSP51B december 2020 – may 2023 LMR43610 , LMR43620
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY CURRENT | ||||||
| IQVIN | Input current to VIN | VIN = 13.5 V, Fixed 3.3-V VOUT, IOUT = 0 A, Auto mode | 1.5 | μA | ||
| VIN = 13.5 V, Fixed 5-V VOUT, IOUT = 0 A, Auto mode | 2 | μA | ||||
| POWER STAGE | ||||||
| VDROP1 | Input to output voltage differential to maintain VOUT regulation ≥ 95%, with frequency foldback | VOUT = 3.3-V, fixed 2.2 MHz, IOUT = 1 A | 0.2 | V | ||
| VOUT = 5-V, fixed 2.2 MHz, IOUT = 1 A | 0.2 | V | ||||
| VDROP2 | Input to output voltage differential to maintain VOUT regulation ≥ 95% and FSW ≥ 1.85 MHz | VOUT = 3.3-V, fixed 2.2 MHz, IOUT = 1 A | 0.7 | V | ||
| Input to output voltage differential to maintain VOUT regulation ≥ 95% and FSW ≥ 1.85 MHz | VOUT = 5-V, fixed 2.2 MHz trim, IOUT = 1 A | 0.9 | V | |||
| DMAX | Maximum switch duty cycle | While in frequency fold-back | 98 | % | ||
| Fsw = 1.85 MHz, VOUT = 5.0-V, IOUT = 1 A | 87 | % | ||||
| RFBPARA(min) | Minimum value of the parallel feedback resistors: RFBT//RFBB | 5 | k? | |||
| PROTECTION | ||||||
| TSD(trip) | Thermal shutdown temperature | Shutdown temperature | 158 | 168 | 186 | °C |
| TSD(hyst) | Thermal shutdown temperature | Recovery temperature | 15 | 20 | °C | |