Device Overview
ACT88321VU101-T is a Qorvo Configurable PMIC with 3 buck converters and 2 LDOs in a 30-pin WLCSP, 2.18 x 2.58 mm package. Selection of this exact part is driven primarily by Device Function (Configurable PMIC with 3 buck converters and 2 LDOs), Input Voltage (2.7 to 5.5 V), Exact Package (30-pin WLCSP, 2.18 x 2.58 mm).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Device Function | Configurable PMIC with 3 buck converters and 2 LDOs | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| Input Voltage | 2.7 to 5.5 V | Defines compatibility with the available system input rail and its operating range. |
| Exact Package | 30-pin WLCSP, 2.18 x 2.58 mm | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
| Factory Configuration Option | VU101 (Exact Qorvo orderable option) | Identifies the factory-programmed ACT88321 configuration option; default rail settings and sequencing must be reviewed for this exact option instead of assuming another ACT88321 suffix is equivalent. |
| Output Voltage | Configurable down to 0.5 V on supported buck outputs | Defines the output/reference voltage range or setpoint that must match the target rail, battery or threshold. |
| Switching Frequency | 1.125 or 2.25 MHz | Defines the buck-converter switching-rate options and affects passive-component selection, efficiency and EMI. |
| Regulator Resources | 3 buck converters; 2 LDOs | Defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions. |
| Output Capability | Buck 1: 4 A; Buck 2: 4 A; Buck 3: 2 A | Defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions. |
| Interfaces | I2C | Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals. |
| Operating Temperature | -40 to 150 degC | Defines the qualified measurement or environmental range that the design must remain within. |
| Lifecycle / Procurement | Not Recommended for New Designs | The device can support existing systems, but Qorvo does not recommend it as the preferred choice for a new platform. |
Power-Management Selection Notes
Device Function is Configurable PMIC with 3 buck converters and 2 LDOs. Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. 2.7 to 5.5 V is the stated input voltage value. Defines compatibility with the available system input rail and its operating range. At 0.5 V, the output voltage defines the output/reference voltage range or setpoint that must match the target rail, battery or threshold.
For switching frequency, 1.125 or 2.25 MHz is the approved value. Defines the operating frequency or RF band that must cover the intended signal frequencies. The interfaces is I2C; this defines the documented control or communication path that must remain compatible with the host and surrounding peripherals.
For operating temperature, -40 to 150 degC is the approved value. Defines the qualified measurement or environmental range that the design must remain within.
Exact Package is 30-pin WLCSP, 2.18 x 2.58 mm. Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
At 3 buck converters; 2 LDOs, the regulator resources defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions. Buck 1: 4 A; Buck 2: 4 A; Buck 3: 2 A is the stated output capability value. Defines a selection-critical engineering characteristic that a compatible substitute must preserve under the stated conditions.
For factory configuration option, VU101 is the approved value. Identifies the factory-programmed ACT88321 configuration option; default rail settings and sequencing must be reviewed for this exact option instead of assuming another ACT88321 suffix is equivalent. Technical condition: Exact Qorvo orderable option.
