DC/DC buck converter in TSMC 22ULL with low quiescent current, high efficiency at light load and supporting 1.62 V to 3.63 V input voltage. No LL PMOS layer required (no extra mask).
Key Benefits
- High efficiency, PFM modulation
- Programmable output voltage
- Output current limiter
- Low output ripple voltage
- Configurable output stage for optimized area adapted to load current
- Embedded power pads with ESD protections
- Trimmable output Voltage
- Embedded level shifters with isolation capabilities on control signals
- Embedded soft-start solution
- Active/Shutdown modes set by EN input and High impedance outputmode set by HIZ input (for test purpose only)
- Fully integrated feedback and compensation circuitry
- Compatible with Local Supply Monitoring
- No LL PMOS layer required (no extra mask)
Key Features
| PARAMETERS | CONDITION |
Minimum value
|
Typical value
|
Maximum value
|
|---|---|---|---|---|
|
Input Voltage
|
- | 1.62 V | 3.63 V | |
|
Output Voltage
|
- | 0.6 V | 2.5 V | |
|
Output current configuration
|
- | - | 1000 mA;200 mA;300 mA;30 mA;400 mA;500 mA;50 mA | - |
Applications
- Bluetooth
- Cellular IoT
- GNSS
- Hearing aids
- NB-IoT
- Smart Headset
- Smart Speaker
- TWS Earpods
- ULP MCU
- Voice-controlled devices
- Voice Assistant
- WiFi
Key Performances
- For I1000HDO configuration (No PLL PMOS layer):
- 630 nA quiescent current
- Up to 95% peak efficiency for Vin=3.3 V to Vout=1.8 V
- Up to 87 % peak efficiency for Vin=3.3 V to Vout=0.8 V
- 85 % efficiency down to 0.001*IMAX
- 3 % DC output voltage accuracy (wihout triming)
Technical information
- Technology: TSMC 22 uLL1.8
- Add-ons:
- -