ZHCS538M September 2008 – October 2020 LM22678 , LM22678-Q1
PRODUCTION DATA
| PARAMETER | TEST CONDITIONS | MIN(1) | TYP(2) | MAX(1) | UNIT | |
|---|---|---|---|---|---|---|
| LM22678-5.0 | ||||||
| VFB | Feedback Voltage | VIN = 8 V to 42 V | 4.925 | 5.0 | 5.075 | V |
| VIN = 8 V to 42 V, –40°C ≤ TJ ≤ 125°C | 4.9 | 5.1 | ||||
| LM22678-ADJ | ||||||
| VFB | Feedback Voltage | VIN = 4.7 V to 42 V | 1.266 | 1.285 | 1.304 | V |
| VIN = 4.7 V to 42 V, –40°C ≤ TJ ≤ 125°C | 1.259 | 1.311 | ||||
| ALL OUTPUT VOLTAGE VERSIONS | ||||||
| IQ | Quiescent Current | VFB = 5 V | 3.4 | mA | ||
| VFB = 5 V, –40°C ≤ TJ ≤ 125°C | 6 | |||||
| ISTDBY | Standby Quiescent Current | EN Pin = 0 V | 25 | 40 | μA | |
| ICL | Current Limit | 6.0 | 7.1 | 8.4 | A | |
| –40°C ≤ TJ ≤ 125°C | 5.75 | 8.75 | ||||
| IL | Output Leakage Current | VIN = 42 V, EN Pin = 0 V, VSW = 0 V | 0.2 | 2 | μA | |
| VSW = –1 V | 0.1 | 3 | μA | |||
| RDS(ON) | Switch On-Resistance | 0.1 | 0.14 | ? | ||
| –40°C ≤ TJ ≤ 125°C | 0.2 | |||||
| fO | Oscillator Frequency | 500 | kHz | |||
| –40°C ≤ TJ ≤ 125°C | 400 | 600 | ||||
| TOFFMIN | Minimum Off-time | 200 | ns | |||
| –40°C ≤ TJ ≤ 125°C | 100 | 300 | ||||
| TONMIN | Minimum On-time | 100 | ns | |||
| IBIAS | Feedback Bias Current | VFB = 1.3 V (ADJ Version Only) | 230 | nA | ||
| VEN | Enable Threshold Voltage | Falling | 1.6 | V | ||
| Falling, –40°C ≤ TJ ≤ 125°C | 1.3 | 1.9 | ||||
| VENHYST | Enable Threshold Hysteresis | 0.6 | V | |||
| IEN | Enable Input Current | EN Input = 0 V | 6 | μA | ||
| TSD | Thermal Shutdown Threshold | 150 | °C | |||