Package Information
| Lead Count (#) | 40 |
| Pkg. Type | QFN-40 |
| Pkg. Code | QFN |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 5x5 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Pkg. Type | QFN-40 |
| Lead Count (#) | 40 |
| Carrier Type | Tape & Reel |
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| Temp. Range (°C) | -40 to +85°C |
| Advanced Features | 8 Channel System PMIC supporting DDR VTT |
| Automotive Rating | No |
| Battery Interface | No |
| Buck-Boost DC/DC Converter Channels (#) | 4 |
| Bus Voltage (Max) (V) | 5 |
| Comm. Interface | I2C |
| Device Functions | PMIC |
| Function | PMIC |
| GPIOs (#) | 0 |
| Input Voltage (Max) (V) | 5.5 |
| Input Voltage (Max) [Rail 1] (V) | 5.5 - 5.5 |
| Input Voltage (Max) [Rail 2] (V) | 5.5 - 5.5 |
| Input Voltage (Min) (V) | 4.5 |
| Input Voltage (Min) [Rail 1] (V) | 4.5 |
| Input Voltage (Min) [Rail 2] (V) | 4.5 |
| Input Voltage Range (V) | 4.5 - 5.5 |
| Integrated Battery Charger | No |
| Integrated step-down DC/DC Converter Channels (#) | 4 |
| Interface | I2C |
| LDOs | 3 |
| Linear Output | Yes |
| MOQ | 5000 |
| Multi-Phase Support | No |
| Nominal VDD | 4.5-5.5 |
| Output Current (Max) [Rail 1] (A) | 5 |
| Output Current Max (A) | 5 |
| Output Voltage (Max) (V) | 3.6 |
| Output Voltage (Max) [Rail 1] (V) | 3 |
| Output Voltage (Min) (V) | 0.8 |
| Output Voltage (Min) [Rail 1] (V) | 0.8 |
| Output Voltage (V) | 0.8-3.6 |
| Outputs (#) | 8 |
| Package Area (mm²) | 25 |
| Parametric Category | PMICs |
| Pitch (mm) | 0.4 |
| Pkg. Dimensions (mm) | 5x5 |
| Published | Yes |
| Qty. per Reel (#) | 5000 |
| Supply Voltage (V) | 4.5 - 5.5 |
| Switching Regulators | 4 |
| Thickness (mm) | 0.85 |
| VIN Range (V) | 4.5 - 5.5 |
Resources for DA9281
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).