DC/DC buck converter in TSMC 40ULP supporting 1.8 to 5.5 V input voltage with low quiescent current and high efficiency at light load.
Key Benefits
- Low quiescent current suitable for standby modes
- High efficiency at light load extending battery lifetime
- Low ripple level compatible with noise sensitive loads
- Low BoM cost: 1 µH inductor
- Optimized silicon area
Key Features
| PARAMETERS | CONDITION |
Minimum value
|
Typical value
|
Maximum value
|
|---|---|---|---|---|
|
Input Voltage
|
- | 1.8 V | 5.5 V | |
|
Output Voltage
|
- | 0.6 V | 3.3 V | |
|
Output current configuration
|
- | - | 1000 mA;200 mA;400 mA;600 mA;800 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
- 350 nA quiescent current (for 200 mA load configuration)
- 150 nA shutdown current (for 200 mA load configuration)
- Up to 85% peak efficiency (for Vin=3.3 V and Vout=1.8 V)
- Up to 81% peak efficiency (for Vin=3.3 V and Vout=0.8 V)
- 80% efficiency down to 0.1% of Imax (for 200 mA load configuration)
- 70% efficiency for Iload=10 µA (for 200 mA load configuration)
- 3% output voltage DC accuracy
Technical information
- Technology: TSMC 40 uLP
- Add-ons:
- -