A CMOS low-dropout linear regulator supplies a fixed 5 V output at up to 500 mA from a 3.3 V to 20 V input range. The regulator provides low 15 µV rms output noise, high power-supply rejection, reverse-current protection, foldback current limiting, and thermal overload protection. It supports a power-good output and programmable precision enable/undervoltage lockout for supply sequencing. The device is supplied in an 8-lead narrow-body SOIC package with an exposed pad and operates across a -40°C to +85°C ambient temperature range.
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| Regulator Type | Positive fixed low-dropout linear regulator |
| Output Voltage | 5V |
| Maximum Output Current | 500mA |
| Input Voltage Range | 3.3 to 20V |
| Typical Dropout Voltage | 350 at 500 mAmV |
| Output Noise | 15, 10 Hz to 100 kHzµV rms |
| Power Supply Rejection Ratio | 60 at 10 kHz, VOUT = 5 VdB |
| Initial Output Accuracy | ±0.8% |
| Output Accuracy Over Line Load and Temperature | -2 to +1% |
| Typical Ground Current | 900 at 500 mA loadµA |
| Maximum Shutdown Current | 50 at VIN = 12 V, 25°CµA |
| Current Limit Threshold | 625 min, 775 typ, 1000 maxmA |
| Operating Ambient Temperature Range | -40 to +85°C |
| Operating Junction Temperature Range | -40 to +125°C |
| Minimum Input and Output Capacitance | 0.7µF |
| Thermal Shutdown Threshold | 150°C |
| Pin Count | 8 |
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