The MIC5259-2.8BD5-TR is an efficient CMOS voltage regulator optimized for low-noise applications. It offers 1.5% initial accuracy, low dropout voltage (300mV at 300mA), and low ground current (typically 105µA at light load). The MIC5259-2.8BD5-TR provides a very low noise output, ideal for RF applications where a clean voltage source is required. The MIC5259-2.8BD5-TR has a high PSRR even at low supply voltages, critical for battery-operated electronics. A noise bypass pin is also available for further reduction of output noise.
Designed specifically for handheld and battery-powered devices, the MIC5259-2.8BD5-TR provides a TTL logic-compatible enable pin. When disabled, power consumption drops to nearly zero.
The MIC5259-2.8BD5-TR also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications; a critical issue in handheld wireless devices.
Key features include current limit, thermal shutdown, faster transient response, and an active clamp to speed up device turnoff. The MIC5259-2.8BD5-TR is available in Thin SOT-23-5 package in a wide range of output voltages.
Feature
- Input voltage range: 2.7V to 6.0V
- PSRR: 70dB at 1kHz
- Low output noise: 30µVrms
- Stability with ceramic output capacitors
- Low dropout: 300mV at 300mA
- High output accuracy:
- 1.5% initial accuracy
- 3.0% over temperature
- Low quiescent current: 105µA
- Tight load and line regulation
- TTL logic-controlled enable input
- Zero off-mode current state
- Thermal shutdown and current limit protection
