The LP38691/3 low dropout CMOS linear regulators provide tight output tolerance, extremely low dropout voltage, and excellent AC performance utilizing ultra low ESR ceramic output capacitors. The low thermal resistance of the LLP, SOT-223 and T0-252 packages allow the full operating current to be used even in high ambient temperature environments. The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.
The National Semiconductor LP38691/LP38693 are 500mA low dropout (LDO) CMOS linear regulators designed for stable operation with ultra-low ESR ceramic output capacitors. These devices offer a tight output voltage tolerance of 2.0% typical and an extremely low dropout voltage of 250 mV at a 500 mA load current.
| Output Current | 500mA |
|---|---|
| Dropout Voltage (Typ) | 250 mV @ 500mA |
| Output Accuracy | 2.0% |
| Input Voltage Range | 2.7V to 10V |
| Operating Temperature Range | -40°C to +125°C |
The ground pin current remains below 100 µA regardless of load current, input voltage, or operating temperature.
Yes, they provide excellent AC performance utilizing ultra low ESR ceramic output capacitors.