Audio Grade DC/DC Buck Converter aimed at supplying battery-powered audio IPs.
Key Benefits
- Supply noise-sensitive audio blocks via an ultrasonic mode: 25 kHz switching frequency clamping
- High efficiency, PFM modulation
- Programmable output voltage
- Output current limiter
- Configurable output stage for optimized area adapted to load current
- Embedded power pads with ESD protections and HV-tolerant
- Embedded voltage reference
- Embedded soft-start solution
- Embedded Regulation OK output
- Active/Shutdown modes set by EN and High impedance output mode set
- by HIZ input (for test purpose only)
Key Features
| PARAMETERS | CONDITION |
Minimum value
|
Typical value
|
Maximum value
|
|---|---|---|---|---|
|
Input Voltage
|
- | 1.62 V | 5.5 V | |
|
Output Voltage
|
- | 0.55 V | 3.3 V | |
|
Output current configuration
|
- | - | 100 mA;200 mA;50 mA | - |
Applications
- Bluetooth
- Cellular IoT
- GNSS
- Hearing aids
- NB-IoT
- Smart Headset
- Smart Speaker
- TWS Earpods
- ULP MCU
- Voice-controlled devices
Key Performances
- Quiescent current (typ): 385 nA
- Shutdown current (typ): 165 nA
- Peak efficiency (typ):
- - 3.3 V to 1.8 V: up to 90%
- - 3.3 V to 0.8 V: up to 82%
- Efficiency at 0.1% of Imax=200mA (typ): 82%
- Efficiency at 10 µA (typ): 70%
- Output voltage DC accuracy: 3%
Technical information
- Technology: GlobalFoundries 22 FDX
- Add-ons:
- OPM-G2-1.62-5.5-1.8.01_GF_22_FDX