The regulator has been designed to provide 3.3V with a load current of up to 10mA. The output voltage is programmable.
The regulator features an automatic feedback sensing option to maintain a constant regulated output voltage level. It has been designed to provide a stable output in both low-drop and high-drop operation, while maintaining minimum ripple on supply lines in the presence of large load current spikes inherent with switching loads, e.g. high-speed ADCs.
The Regulator has been designed to allow low-drop operation (the LDPMOS pass device has been scaled for a voltage drop of 600mV). To achieve these goals, the Regulator requires a 1F external ceramic capacitor.
The Regulator uses 32V LDMOS oxide devices from the 180nm high voltage process. The circuit can be scaled for a range of load currents and the output voltage level is programmable.
For maximum flexibility, the user can adjust the regulated output voltage if the Regulator is placed on a different chip.
The Regulator is readily portable to other manufacturing processes or can be customised for specific customer requirements.
- 180nm TSMC High Voltage Mixed-Signal Process
- 6 Metals Used
- 4V – 15V Input Voltage
- 3.3V Output Voltage
- 10mA Load Current
- 600mV Drop Out Voltage
- Compact Die Area
- Programmable Output Voltage
- Power Down Mode