4-output Single Inductor Multiple Output (SIMO) DC/DC buck converter.
Key Benefits
- Supply up to 4 power domains from a single inductor
- Low BoM: a single inductor to supply four distinct outputs
- Flexible: 4 individually programmable output voltages
- Extend battery lifetime:
- during SoC active mode: high power efficiency
- during SoC standby mode: low quiescent current
- Small and low-cost inductors: 1 to 2.2 µH
Key Features
| PARAMETERS | CONDITION |
Minimum value
|
Typical value
|
Maximum value
|
|---|---|---|---|---|
|
Input Voltage
|
- | 1.8 V | 5.5 V | |
|
Output Voltage
|
- | 0.5 V | 3.5 V | |
|
Output current configuration
|
- | - | 200 mA;300 mA;400 mA;500 mA | - |
|
Quiescent current typical value
|
On AVD, All outputs enabled, ILOAD= 0 mA | - | 1200 nA | - |
|
Accuracy
|
PVT, including Line and Load Regulation | - | - | -3%, +3% |
|
Efficiency
|
Peak efficiency on OUT4, with OUT1, OUT2 and OUT3 disabled, VAV DPWR = 3.3 V, VOUT3 = 1.8 V, including typical parasitic described in Table 1.2 | - | - | 85% |
Applications
- GNSS
- Hearing aids
- NB-IoT
- Smart Headset
- Smart Speaker
- TWS Earpods
- ULP MCU
- Voice-controlled devices
- Voice Assistant
- WiFi
Key Performances
- Total output current up to 400 mA
- Efficiency up to 85%
- Quiescent current (typical) < 1.5 µA
- Shutdown current (typical) < 260 nA
- DC accuracy: ±3%
Technical information
- Technology: TSMC 22 uLL