The LT®1764 is a low dropout regulator optimized for fast transient response. The device is capable of supplying 3A of output current with a dropout voltage of 340mV. Oper- ating quiescent current is 1mA, dropping to <1µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the LT1764 has very low output voltage noise which makes the device ideal for sensitive RF supply applications. Output voltage range is from 1.21V to 20V. The LT1764 regulators are stable with output capacitors as low as 10µF. Internal protection circuitry includes reverse battery pro- tection, current limiting, thermal limiting and reverse cur- rent protection. The device is available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable device with a 1.21V reference voltage. The LT1764 regu- lators are available in 5-lead
The document describes the LT1764 Series, a low dropout regulator optimized for fast transient response with an output current of 3A. Key features include a low noise level of 40uVrms (10Hz to 100kHz), a wide input voltage range from 2.7V to 20V, and internal protection circuitry including reverse battery and thermal limiting.
| Output Current | 3A |
|---|---|
| Dropout Voltage (at 3A) | 340mV |
| Output Noise | 40uVrms (10Hz to 100kHz) |
| Quiescent Current | 1mA |
| Input Voltage Range | 2.7V to 20V |
| Operating Junction Temperature | -40°C to 125°C |
| Storage Temperature | -65°C to 150°C |
The device is available in fixed output voltages of 1.5V, 1.8V, 2.5V, and 3.3V.
Yes, it supports an adjustable output voltage ranging from 1.21V to 20V.
The quiescent current drops to less than 1pA when the device is in shutdown.