ZHCSPF6B february 2022 – may 2023 LMQ66410 , LMQ66420 , LMQ66430
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
|---|---|---|---|---|---|---|
| SUPPLY VOLTAGE (VIN PIN) | ||||||
| VINMIN | Input voltage rising threshold for startup | Before startup | 3.2 | 3.35 | 3.5 | V |
| Input voltage falling threshold | Once operating | 2.45 | 2.7 | 3 | V | |
| ISD(VIN) | Shutdown quiescent current at VIN pin | EN = 0 V | 0.25 | 1 | μA | |
| IBIAS | Non-switching input current at VOUT/FB | Fixed 5.0-V Vout, VVOUT/FB = 5.25 V | 4.2 | 6.5 | μA | |
| IBIAS | Non-switching input current at VOUT/FB | Fixed 3.3-Vout, VVOUT/FB = 3.47 V | 4.2 | 6.5 | μA | |
| IQVIN(nonsw) | Non-switching input current; measured at VIN pin (1) | Fixed 5-V VOUT, VVOUT/FB = 5.25 V | 1.6 | 3 | μA | |
| IQVIN(nonsw) | Non-switching input current; measured at VIN pin (1) | Fixed 3.3-V VOUT, VVOUT/FB = 3.47 V | 1.2 | 2.2 | μA | |
| ENABLE (EN PIN) | ||||||
| VEN-WAKE | EN wakeup threshold | 0.5 | 0.7 | 1 | V | |
| VEN-VOUT | Precision enable rising threshold for VOUT | 1.16 | 1.23 | 1.3 | V | |
| VEN-HYST | Enable hysteresis below VEN-VOUT | 0.3 | 0.35 | 0.4 | V | |
| ILKG-EN | Enable pin input leakage current | VEN = VIN = 13.5 V | 10 | nA | ||
| INTERNAL LDO (VCC PIN) | ||||||
| VCC | VCC pin output voltage | VFB = 0 V, IVCC = 1 mA | 3.1 | 3.3 | 3.45 | V |
| VOLTAGE FEEDBACK (VOUT/FB PIN) | ||||||
| VOUT | Output voltage accuracy for fixed VOUT | 3.3-V VOUT, VIN = 3.6 V to 36 V, FPWM Mode | 3.27 | 3.3 | 3.32 | V |
| 5-V VOUT, VIN = 5.5 V to 36 V, FPWM Mode | 4.94 | 5.00 | 5.06 | V | ||
| VFB | Internal reference voltage accuracy | VOUT = 1 V, VIN = 3.0 V to 36 V, FPWM Mode | 0.99 | 1.00 | 1.01 | V |
| IFB(LKG) | FB input current | Adjustable configuration, FB = 1 V | 10 | nA | ||
| CURRENT LIMITS | ||||||
| IPEAKMAX | High-side peak current limit | LMQ66430 | 3.9 | 4.4 | 5 | A |
| IVALMAX | Low-side valley current limit | LMQ66430 | 2.9 | 3.5 | 4 | A |
| IPEAKMIN | Minimum peak current limit | LMQ66430, Auto Mode | 0.55 | 0.69 | 0.86 | A |
| INEGMIN | Low-side valley current negative limit | LMQ66430, FPWM Mode | –1.5 | –1.3 | –1 | A |
| IPEAKMAX | High-side peak current limit | LMQ66420 | 2.8 | 3.4 | 3.9 | A |
| IVALMAX | Low-side valley current limit | LMQ66420 | 1.9 | 2.2 | 2.53 | A |
| IPEAKMIN | Minimum peak current limit | LMQ66420, Auto Mode | 0.37 | 0.5 | 0.65 | A |
| INEGMIN | Negative current limit | LMQ66420, FPWM Mode | –1 | –0.8 | –0.6 | A |
| IPEAKMAX | High-side peak current limit | LMQ66410 | 1.4 | 1.8 | 2.1 | A |
| IVALMAX | Low-side valley current limit | LMQ66410 | 0.9 | 1.1 | 1.4 | A |
| IPEAKMIN | Minimum peak current limit | LMQ66410, Auto Mode | 0.17 | 0.27 | 0.35 | A |
| INEGMIN | Low-side valley current negative limit | LMQ66410, FPWM Mode | –1 | –0.8 | –0.6 | A |
| IZC | Zero-cross current limit | Auto Mode | 30 | 80 | 135 | mA |
| POWER GOOD (PG PIN) | ||||||
| PGOV | PG upper threshold - rising | % of VOUT/FB (Fixed or Adj. output) | 104 | 108 | 111 | % |
| PGUV | PG upper threshold - falling | % of VOUT/FB (Fixed or Adj. output) | 89 | 91 | 94.2 | % |
| PGHYST | PG recovery hysteresis for OV | % of VOUT/FB target regulation voltage | 2 | 2.4 | 2.8 | % |
| PG recovery hysteresis for UV | % of VOUT/FB target regulation voltage | 2 | 3.3 | 4.6 | % | |
| VPG-VAL | Minimum VIN for PG function | VEN = 0 V, RPG_PU = 10 kΩ | 1.5 | V | ||
| RPG | PG ON resistance | VEN = 3.3 V, 200 μA pull up current | 100 | Ω | ||
| RPG | PG ON resistance | VEN = 0 V, 200 μA pull up current | 100 | Ω | ||
| tRESET_FILTER | PG deglitch delay at falling edge | 25 | 40 | 75 | μs | |
| tPG_ACT | Delay time to PG high signal | 1.35 | 2.5 | 4 | ms | |
| SOFT START | ||||||
| tSS | Time from first SW pulse to VOUT/FB at 90% of set point | 2 | 3.5 | 4.6 | ms | |
| tHICCUP | Time in hiccup before retry soft start | 30 | 50 | 75 | ms | |
| FSW(2.2MHz) | Switching Frequency with fixed 2.2 MHz | 2100 | 2200 | 2300 | kHz | |
| OSCILLATOR (RT PIN) | ||||||
| fADJ | Frequency adjust range | 0.25 | 2.2 | MHz | ||
| FSW(2p2MHz) | Switching frequency with fixed 2.2 MHz | RT pin tied to GND | 2100 | 2200 | 2300 | kHz |
| FSW(Adj) | Accuracy of external frequency, 400 kHz | RRT = 39.2 kΩ 0.1% resistor | 340 | 400 | 460 | kHz |
| Accuracy of external frequency, 2.2 MHz | RRT = 6.92 kΩ 0.1% resistor | 2100 | 2200 | 2450 | kHz | |
| SWITCH NODE | ||||||
| tON-MIN | Minimum HS switch on-time | FPWM mode IOUT = 1 A, 2.2 MHz fixed | 65 | 75 | ns | |
| tOFF-MIN | Minimum HS switch off-time | 60 | 85 | ns | ||
| tON-MAX | Maximum HS switch on-time | HS timeout in dropout | 6 | 9 | 13 | μs |
| POWER STAGE | ||||||
| VBOOT_UVLO | Voltage on BOOT pin compared to SW which will turnoff high-side switch | 2.1 | V | |||
| RDSON-HS | High-side MOSFET on-resistance | Load = 1 A | 132 | 260 | mΩ | |
| RDSON-LS | Low-side MOSFET on-resistance | Load = 1 A | 75 | 140 | mΩ | |