PARAMETER | SYMBOL | CONDITIONS | MIN | TYP | MAX | UNITS |
SUPPLY VOLTAGES, SUPPLY CURRENT, TEMPERATURE RANGE |
12V Supply Voltage Range | VDDH | * | 4.5 | | 16 | V |
1.8V Supply Voltage Range | VCC | * | 1.71 | 1.8 | 1.89 | V |
VCC Supply Current | ICC | CCM * | 35 | mA |
DCM * | 25 |
Shutdown * | | 32 | 132 | µA |
VREF |
Programmable Reference Voltage | VREF | # (See Table 3) | 0.6 | V |
0.95 |
VREF Tolerance (VREF_TOL) | T = 35°C (Note 4) | -0.5 | | +0.5 | % |
VREF Tolerance Temperature
Coefficient (VREFT_COEFF) | 0°C < TJ < 100°C (Note 4) | 0.0106 | %/°C |
FEEDBACK LOOP |
RSENSE GAIN | Gain | # (See Table 3) | 1.4 | mV/A |
2.8 |
5.4 |
SWITCHING FREQUENCY |
Switching Frequency Accuracy | fSW | Relative to the nominal value (see Figure 4). 0A < ILOAD < Full Load VCC, VDDH ±10% * | -20 | | +20 | % |
Low fSW Threshold | DCM enabled | 30 | kHz |
Forced Minimum fSW | DCM enabled. The low fSW threshold has been crossed. | 60 | kHz |
INPUT PROTECTION |
Rising VDDH UVLO Threshold | VDDH UVLO | * | 3.85 | 4.15 | 4.40 | V |
Falling VDDH UVLO Threshold | 3.70 | 3.98 | 4.25 | V |
Rising VDDH OVLO Threshold | VDDH OVLO | * | 16.6 | 17.3 | 17.8 | V |
Falling VDDH OVLO Threshold | 16.1 | 16.7 | 17.3 | V |
Rising VCC UVLO Threshold | VCC UVLO | * | 1.49 | 1.62 | 1.70 | V |
Falling VCC UVLO Threshold | 1.46 | 1.57 | 1.65 | V |
Rising VBST UVLO Threshold | VBST UVLO | * | 1.48 | 1.57 | 1.70 | V |
Falling VBST UVLO Threshold | 1.33 | 1.52 | 1.65 | V |
OUTPUT VOLTAGE PROTECTION (OVP) |
Overvoltage-Protection Rising Threshold | OVP | (Note 5) | 9.5 | 13 | 16.5 | % |
Overvoltage-Protection Deglitch Filter Time | | 25 | 30 | 36 | µs |
Power Good Protection Falling Threshold | PWRGD | (Note 5) | -12 | -9 | -4.5 | % |
Power Good Protection Rising Threshold | (Note 5) | -9 | -6 | -2 | % |
Power Good Deglitch Filter Time | | 25 | 30 | 36 | µs |
OVERCURRENT PROTECTION (OCP) |
Positive Overcurrent-Protection Threshold (POCP) | OCP | Valley current # | 16 | A |
20 |
24 |
Negative Overcurrent-Protection Threshold (NOCP) | -16 | A |
-20 |
-24 |
POCP Threshold Tolerance | Referenced to nominal value (Note 5) * | -20 | | 20 | % |
Hysteresis (Note 6) | Referenced to inception value (Note 5)* | 12 | 15 | 18 | % |
OVERTEMPERATURE PROTECTION (OTP) |
Overtemperature-Protection Inception Threshold | OTP | * | 130 | 140 | 150 | °C |
Hysteresis | | -30 | | -10 | °C |
TEMPERATURE REPORTING |
Temperature-Reporting Range | TJ | | 0 | | 125 | °C |
Temperature-Reporting Tolerance | * | -4 | | +4 | °C |
CURRENT REPORTING |
Current-Reporting Range | ILOAD | | 0 | | 25 | A |
Current-Reporting Tolerance | From no load to full load * | -2 | | +2 | A |
Full load * | -8 | | +8 | % |