180XFAB_DCDC_05 is capable to generate -4.2V ÷ -3.3V (-3.7V typical value) voltage and can maintain 50uA load for -3.7V output. The block consists of OTA and transistor-capacitive multiplier cells. The DC/DC is used for forming negative supply. Upon power-up to typical 3.7V voltage at the fully charged 100nF output capacitor connected, slew rate of output voltage will be limited of the internal frequency correction circuits and is approximately 4.3 V/us. Start-up time is increased with increasing capacitor nominal value proportionally.
3.3 - 4.2V to -3.7V step-down DC/DC converter
Overview
Key Features
- XFAB XT018
- Input Voltage Range: 3.3V to 4.2V
- Output Voltage: minus input voltage
Block Diagram
Applications
- Low-Voltage, High-Density Systems
- Broadband, Networking, and Optical Communications Infrastructure
Deliverables
- Schematic or NetList
- Abstract model (.lef and .lib files)
- Layout view (optional)
- Behavioral model (Verilog)
- Extracted view (optional)
- GDSII
- DRC, LVS, antenna report
- Test bench with saved configurations (optional)
- Documentation
Technical Specifications
Foundry, Node
XFAB XT018
Maturity
silicon proven
Availability
Now