ZHCSKR4B December 2019 – November 2022 LMR36503
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY VOLTAGE (VIN PIN) | ||||||
| VIN_R | Minimum operating input voltage (rising) | Rising threshold | 3.4 | 3.5 | V | |
| VIN_F | Minimum operating input voltage (falling) | Once operating; Falling threshold | 2.45 | 3.0 | V | |
| IQ_13p5_Fixed | Non-switching input current; measured at VIN pin(2) | VIN = VEN = 13.5V ; VOUT/BIAS = 5.25V, VRT = 0V; Fixed output | 0.25 | 0.672 | 1.05 | μA |
| IQ_13p5_Adj | Non-switching input current; measured at VIN pin(2) | VIN = VEN = 13.5V ; VFB = 1.05V, VRT = 0V; Adjustable output | 14 | 17 | 22 | μA |
| IQ_24p0_Fixed | Non-switching input current; measured at VIN pin(2) | VIN = VEN = 24V ; VOUT/BIAS = 5.25V, VRT = 0V; Fixed output | 0.8 | 1.2 | 1.7 | μA |
| IQ_24p0_Adj | Non-switching input current; measured at VIN pin(2) | VIN = VEN = 24V ; VFB = 1.05V, VRT = 0V; Adjustable output | 14 | 18 | 22 | μA |
| IB_13p5 | Current into VOUT/BIAS pin (not switching)(2) | VIN = 13.5V, VOUT/BIAS = 5.25V, VRT = 0V; Fixed output | 14 | 17 | 22 | μA |
| IB_24p0 | Current into VOUT/BIAS pin (not switching)(2) | VIN = 24V, VOUT/BIAS = 5.25V, VRT = 0V; Fixed output | 14 | 18 | 22 | μA |
| ISD_13p5 | Shutdown quiescent current; measured at VIN pin(2) | VEN = 0; VIN = 13.5V | 0.5 | 1.1 | μA | |
| ISD_24p0 | Shutdown quiescent current; measured at VIN pin(2) | VEN = 0; VIN = 24V | 1 | 1.6 | μA | |
| ENABLE (EN PIN) | ||||||
| VEN-WAKE | Enable wake-up threshold | 0.4 | V | |||
| VEN-VOUT | Precision enable high level for VOUT | 1.16 | 1.263 | 1.36 | V | |
| VEN-HYST | Enable threshold hysteresis below VEN-VOUT | 0.3 | 0.35 | 0.4 | V | |
| ILKG-EN | Enable input leakage current | VEN = 3.3 V | 0.3 | 8 | nA | |
| INTERNAL LDO | ||||||
| VCC | Internal VCC voltage | Adjustable or fixed output; Auto mode | 3.125 | 3.15 | 3.22 | V |
| ICC | Bias regulator current limit | 65 | 240 | mA | ||
| VCC-UVLO | Internal VCC undervoltage lockout | VCC rising under voltage threshold | 3 | 3.3 | 3.65 | V |
| VCC-UVLO-HYST | Internal VCC under voltage lock-out hysteresis | Hysteresis below VCC-UVLO | 0.4 | 0.8 | 1.2 | V |
| CURRENT LIMITS | ||||||
| ISC-0p3 | Short circuit high side current Limit(3) | 0.3A Version | 0.42 | 0.5 | 0.575 | A |
| ILS-LIMIT-0p3 | Low side current limit(3) | 0.3A Version | 0.3 | 0.35 | 0.4 | A |
| IPEAK-MIN-0p3 | Minimum peak inductor current(3) | PFM Operation, 0.3A Version; Duty Factor = 0 | 0.067 | 0.09 | 0.11 | A |
| ISC-0p6 | Short circuit high side current Limit(3) | 0.87 | 1 | 1.11 | A | |
| ILS-LIMIT-0p6 | Low side current limit(3) | 0.6 | 0.7 | 0.752 | A | |
| IPEAK-MIN-0p6 | Minimum Peak Inductor Current(3) | Auto Mode, duty factor = 0 | 0.127 | 0.19 | 0.227 | A |
| IZC | Zero cross current(3) | Auto mode | 0 | 0.01 | 0.022 | A |
| IL-NEG | Sink current limit (negative)(3) | FPWM mode | 0.6 | 0.7 | 0.8 | A |
| POWER GOOD | ||||||
| PG-OV | PGOOD upper threshold - rising | % of FB (Adjustable output) or % of VOUT/BIAS (Fixed output) | 106 | 107 | 110 | % |
| PG-UV | PGOOD lower threshold - falling | % of FB (Adjustable output) or % of VOUT/BIAS (Fixed output) | 93 | 94 | 96.5 | % |
| PG-HYS | PGOOD hysteresis - rising/falling | % of FB (Adjustable output) or % of VOUT/BIAS (Fixed output) | 1.3 | 1.8 | 2.3 | % |
| VPG-VALID | Minimum input voltage for proper PG function | 0.75 | 1 | 2 | V | |
| RPG-EN5p0 | RDS(ON) PGOOD output | VEN = 5.0V, 1mA pull-up current | 20 | 40 | 70 | Ω |
| RPG-EN0 | RDS(ON) PGOOD output | VEN = 0 V, 1mA pull-up current | 10 | 18 | 31 | Ω |
| MOSFETS | ||||||
| RDS-ON-HS | High-side MOSFET on-resistance | Load = 0.3 A | 560 | 920 | mΩ | |
| RDS-ON-LS | Low-side MOSFET on-resistance | Load = 0.3 A | 280 | 460 | mΩ | |
| VCBOOT-UVLO | Cboot - SW UVLO threshold(4) | 2.14 | 2.3 | 2.42 | V | |
| VOLTAGE REFERENCE | ||||||
| VOUT_Fixed3p3 | Initial VOUT voltage accuracy for 3.3 V | FPWM mode | 3.25 | 3.3 | 3.34 | V |
| VOUT_Fixed5p0 | Initial VOUT voltage accuracy for 5 V | FPWM mode | 4.93 | 5 | 5.07 | V |
| VREF | Internal reference voltage | VIN = 3.6V to 65V, FPWM mode | 0.985 | 1 | 1.01 | V |
| IFB | FB input current | Adjustable output, FB = 1V | 85 | 110 | nA | |