Low dropout CMOS linear regulator provides a fixed 3.3 V output with up to 150 mA load current. The regulator operates from a 2.3 V to 5.5 V input range and uses about 30 µA quiescent current at full load. Dropout voltage for the 3.3 V option is specified as low as 90 mV typical in WLCSP or 120 mV typical in TSOT at 150 mA. Protection features include current limit, thermal overload shutdown, undervoltage lockout, and a logic-controlled enable input. The family supports small 1 µF ceramic input and output capacitors and is specified from -40°C to +125°C junction temperature.
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| Regulator Type | CMOS low dropout linear regulator |
| Output Voltage | 3.3V |
| Output Current | 150mA |
| Input Voltage Range | 2.3 to 5.5V |
| Quiescent Current at No Load | 11 typicalµA |
| Quiescent Current at 150 mA Load | 30 typical, 40 maximum over temperatureµA |
| Shutdown Current | 0.1 typical, 1.5 maximum over temperatureµA |
| Output Voltage Accuracy | ±1 at 10 mA, ±3 over load and temperature% |
| Dropout Voltage, TSOT at 150 mA | 120 typical, 180 maximum over temperaturemV |
| Dropout Voltage, WLCSP at 150 mA | 90 typical, 135 maximum over temperaturemV |
| Start-Up Time | 120 typicalµs |
| Current Limit Threshold | 160 minimum, 225 typical, 350 maximummA |
| Thermal Shutdown Threshold | 150 typical rising°C |
| Operating Junction Temperature | -40 to +125°C |
| Enable Input Logic High | 1.2 minimumV |
| Enable Input Logic Low | 0.4 maximumV |
| Undervoltage Lockout Rising | 2.25 typicalV |
| Output Noise, 3.3 V Option | 65 typical, 10 Hz to 100 kHzµV rms |
| PSRR, 3.3 V Option at 10 kHz | 60 typicaldB |
| Minimum Input and Output Capacitance | 0.70 minimum over operating conditionsµF |
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