ZHCSO70A march 2023 – may 2023 LMR36501 , LMR36502
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY VOLTAGE (VIN PIN) | ||||||
| VIN_R | Minimum operating input voltage (rising) | Rising threshold | 3.4 | 3.55 | V | |
| VIN_F | Minimum operating input voltage (falling) | Once operating; Falling threshold | 2.45 | 3.0 | V | |
| ISD_13p5 | Shutdown quiescent current; measured at VIN pin (2) | VEN = 0 V; VIN = 13.5 V | 0.5 | 1.1 | μA | |
| ISD_24p0 | Shutdown quiescent current; measured at VIN pin (2) | VEN = 0 V; VIN = 24 V | 1 | 1.6 | μA | |
| IQ_13p5_Fixed | Non-switching input current; measured at VIN pin (2) | VIN = VEN = 13.5 V; VOUT/FB = 5.25 V, VRT = 0 V; Fixed output | 0.25 | 0.672 | 1.05 | μA |
| IQ_13p5_Adj | Non-switching input current; measured at VIN pin (2) | VIN = VEN = 13.5 V; VFB = 1.05 V, VRT = 0 V; Adjustable output | 14 | 17 | 22 | μA |
| IQ_24p0_Fixed | Non-switching input current; measured at VIN pin (2) | VIN = VEN = 24 V; VOUT/FB = 5.25 V, VRT = 0 V; Fixed output | 0.8 | 1.2 | 1.7 | μA |
| IQ_24p0_Adj | Non-switching input current; measured at VIN pin (2) | VIN = VEN = 24 V; VFB = 1.05 V, VRT = 0 V; Adjustable output | 14 | 18 | 22 | μA |
| IB_13p5 | Current into VOUT/FB pin (not switching) (2) | VIN = 13.5 V, VOUT/FB = 5.25 V, VRT = 0 V; Fixed output | 14 | 17 | 22 | μA |
| IB_24p0 | Current into VOUT/FB pin (not switching) (2) | VIN = 24 V, VOUT/FB = 5.25 V, VRT = 0 V; Fixed output | 14 | 18 | 22 | μA |
| ENABLE (EN PIN) | ||||||
| VEN-WAKE | Enable wake-up threshold | 0.4 | V | |||
| VEN-VOUT | Precision enable high level | 1.16 | 1.263 | 1.36 | V | |
| VEN-HYST | Enable threshold hysteresis | 0.285 | 0.35 | 0.425 | V | |
| ILKG-EN | Enable input leakage current | VEN = 3.3 V | 0.2 | 8 | nA | |
| INTERNAL LDO | ||||||
| VCC | Internal VCC voltage | Adjustable or fixed output; Auto mode | 3.1 | 3.15 | 3.25 | V |
| ICC | Bias regulator current limit | 50 | 120 | 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-100mA | Short circuit high side current limit (3) | 100 mA version | 140 | 167 | 200 | mA |
| ILS-LIMIT-100mA | Low side current limit (3) | 100 mA version | 99 | 116 | 135 | mA |
| IPEAK-MIN-100mA | Minimum peak inductor current limit (3) | PFM Operation, 100 mA version; Duty Cycle = 0% | 30 | 40 | 50 | mA |
| ISC-150mA | Short circuit high side current limit (3) | 150 mA version | 210 | 250 | 298 | mA |
| ILS-LIMIT-150mA | Low side current limit (3) | 150 mA version | 150 | 175 | 204 | mA |
| IPEAK-MIN-150mA | Minimum Peak Inductor Current (3) | PFM Operation, 150 mA version; Duty Cycle = 0% | 55 | 70 | 85 | mA |
| IZC | Zero cross current (3) | Auto mode | 0 | 2.5 | 5 | mA |
| IL-NEG-100mA | Sink current limit (negative) (3) | FPWM mode | -200 | -175 | -150 | mA |
| IL-NEG-150mA | Sink current limit (negative) (3) | FPWM mode | -200 | -175 | -150 | mA |
| POWER GOOD | ||||||
| PG-OV | PGOOD upper threshold - rising | % of FB (Adjustable output) or % of VOUT/FB (Fixed output) | 106 | 107 | 110 | % |
| PG-UV | PGOOD lower threshold - falling | % of FB (Adjustable output) or % of VOUT/FB (Fixed output) | 93 | 94 | 96.5 | % |
| PG-HYS | PGOOD hysteresis - rising/falling | % of FB (Adjustable output) or % of VOUT/FB (Fixed output) | 0.8 | 1.2 | 1.8 | % |
| VPG-VALID | Minimum input voltage for proper PG function | 0.7 | 0.9 | 2 | V | |
| RPG-EN5p0 | PGOOD pull down resistance | VEN = 5.0 V, 1 mA pull-up current | 20 | 40 | 70 | Ω |
| RPG-EN0 | PGOOD pull down resistance | VEN = 0 V, 1 mA pull-up current | 15 | 24 | 46 | Ω |
| MOSFETS | ||||||
| RDSON-HS | High-side MOSFET on-resistance | Load = 100 mA | 2.2 | Ω | ||
| RDSON-LS | Low-side MOSFET on-resistance | Load = 100 mA | 1 | Ω | ||
| VBOOT-UVLO | BOOT - SW UVLO threshold (4) | 2.14 | 2.3 | 2.42 | V | |
| VOLTAGE FEEDBACK (VOUT/FB PIN) | ||||||
| VOUT | Output Voltage Accuracy for fixed VOUT | VOUT = 3.3-V, VIN = 3.6 V to 65 V, FPWM | 3.24 | 3.3 | 3.34 | V |
| VOUT | Output Voltage Accuracy for fixed VOUT | VOUT = 5-V, VIN = 5.5 V to 65 V, FPWM | 4.93 | 5 | 5.08 | V |
| VREF | Internal reference voltage | VIN = 3.6 V to 65 V, FPWM mode | 0.985 | 1 | 1.01 | V |
| IFB | FB input current | Adjustable output, FB = 1 V | 1 | 30 | nA | |
| THERMAL SHUTDOWN | ||||||
| TSD-R | Thermal shutdown rising | Shutdown threshold | 158 | 168 | 180 | °C |
| TSD-HYS | Thermal shutdown hysteresis | 8 | 10 | 15 | °C | |
| SOFT START | ||||||
| tSS | Time from first SW pulse to VFB at 90% of VREF | VIN ≥ 3.6 V | 1.95 | 2.58 | 3.2 | ms |
| POWER GOOD | ||||||
| tRESET_FILTER | Glitch filter time constant for PG function | 15 | 25 | 40 | μs | |
| tPGOOD_ACT | Delay time to PG high signal | 1.7 | 1.956 | 2.16 | ms | |
| PWM LIMITS (SW) | ||||||
| tON-MIN | Minimum switch on-time | VIN = 24 V, IOUT = 150 mA | 40 | 55 | 80 | ns |
| tOFF-MIN | Minimum switch off-time | 40 | 60 | 90 | ns | |
| tON-MAX | Maximum switch on-time | HS timeout in dropout | 7.6 | 9 | 9.8 | μs |
| OSCILLATOR (RT) | ||||||
| fOSC_2p2MHz | Internal oscillator frequency | RT = GND | 2.1 | 2.2 | 2.3 | MHz |
| fOSC_1p0MHz | Internal oscillator frequency | RT = VCC | 0.93 | 1 | 1.05 | MHz |
| fADJ_400kHz | Accuracy of external frequency, 400 kHz | RT = 39.2 k? | 0.34 | 0.4 | 0.46 | MHz |