Linear Regulators
Linear voltage Low Drop Out (LDO) voltage regulators
Topologies developed:
- LDO Voltage Regulators dedicated to RF supply section
- High PSRR (up to 80dB from 10Hz to 20kHz, 60dB at 100kHz)
- Low Noise (below 10uV RMS)
- LDO Voltage Regulators dedicated to BB supply section
- Low quiescent current (below 10uA)
- Quiescent current adaptable to output current
- Soft Start and Power on Reset management
- LDO Voltage Regulators dedicated to Backup and RTC supply section
- Very Low Quiescent Current (below 2uA)
- diode emulation to prevent reverse current from the backup battery
- LDO Voltage Controllers dedicated to high current applications
- external FETs (DDR supply, Micro Supply, …)
Characteristics:
- Small Ceramic external Capacitors (from 1nF to 10µF)
- Built-in over-current sensing and protection
- Optimized Power Devices Layout for area saving