Features
- 4.5V to 5.5V input voltage
- Buck (CH1 to CH4)
- Output current 5.0A at 0.8V to 3.0V (CH1)
- Output current 2.5A at 0.8V to 3.3V (CH2)
- Output current 2.5A at 0.8V to 3.6V (CH3)
- Output current 2.5A at 0.8V to 3.3V (CH4)
- Operation frequency 2MHz
- Discharge function
- Soft-start function
- LDO (CH6 to CH8)
- Output current 0.2A at 2.5V (CH6)
- Output current 0.2A at 1.8/3.3V (CH7)
- Output current 1.6A at 1.8V (CH8)
- Discharge function
- Soft-start function
- Termination Voltage Regulator (CH5)
- Output current -0.5A to 0.5A at CH4 = 1.2V or CH4 = 1.35V
- Discharge function
- Soft-start function
- I2C digital interface
- Protection features: OCP, OVP, UVP for all channels
- Parameters of the output voltage can be changed by I2C control
- Programmable sequencer by I2C control
- 40-QFN 5mm x 5mm package (0.4mm pitch)
- -40 °C to +85 °C ambient temperature range
Description
DA9281 is an 8-channel PMIC equipped with 4 buck regulators, 3 LDOs, and 1 voltage buffer to support DDR VTT termination. It provides key functions for power applications, including soft-start, selectable preset output voltage, and flexible power-up and power-down sequences. These functions are programmable via the I2C interface with non-volatile memory defaults. Additionally, all 8 channels have an output discharge function and various protection features such as over-current protection (OCP), over-voltage protection (OVP), and under-voltage protection (UVP).
Parameters
| Attributes | Value |
|---|---|
| Qualification Level | Standard |
| Product Type | MPU |
| Processor Supplier | Renesas |
| Processor Name | RZ G2L, V2L |
| Total step-down DC/DC converter channels (#) | 7 |
| Step-up DC/DC converter Channels (#) | 0 |
| Input Voltage (Min) (V) | 4.5 |
| Input Voltage (Max) (V) | 5.5 |
| Bus Voltage (Max) (V) | 5 |
| Output Current Max (A) | 5 |
| Outputs (#) | 8 |
| Function | 8-ch PMIC |
| Comm. Interface | I2C |
| Battery Interface | No |
| GPIOs (#) | 0 |
| Integrated Battery Charger | No |
| Switching Frequency (MHz) | 2 - 2 |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| QFN | 5x5 | 40 | 0.4 |
Product Comparison
Applications
- Industrial MPU System Power
- Embedded Computing/SOM
- FPGA/DSP Power Supply
- IoT/HMI Terminal