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ACT88321 Dataheets PDF



Part Number ACT88321
Manufacturers Qorvo
Logo Qorvo
Description Advanced PMIC
Datasheet ACT88321 DatasheetACT88321 Datasheet (PDF)

ACT88321 ® Advanced PMIC with 3 Bucks, 2 LDOs, and Load Bypass Switches BENEFITS and FEATURES • Wide input voltage range • Vin = 2.7V to 5.5V • Complete integrated power solution • 4A DC/DC Step-Down (Buck) Regulator with Bypass Function • 4A DC/DC Step-Down (Buck) Regulator • 2A DC/DC Step-Down (Buck) Regulator • Two 390mA LDOs • Space Savings • Fully integrated • High Fsw = 1.125MHz to 3.3MHz • Works with 0.47µH Inductor • Integrated sequencing • Easy system level design • Configurable Seq.

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ACT88321 ® Advanced PMIC with 3 Bucks, 2 LDOs, and Load Bypass Switches BENEFITS and FEATURES • Wide input voltage range • Vin = 2.7V to 5.5V • Complete integrated power solution • 4A DC/DC Step-Down (Buck) Regulator with Bypass Function • 4A DC/DC Step-Down (Buck) Regulator • 2A DC/DC Step-Down (Buck) Regulator • Two 390mA LDOs • Space Savings • Fully integrated • High Fsw = 1.125MHz to 3.3MHz • Works with 0.47µH Inductor • Integrated sequencing • Easy system level design • Configurable Sequencing • Multiple Wake up Triggers with GPIOs • Seamless Sequencing of External Supplies • Four Programmable GPIOs • Buck 1 Bypass Mode for 3.3V system level compliance • Highly configurable • uP interface for status reporting and controllability • Programmable Reset and Power Good GPIO’s • Flexible Sequencing Options • Multiple Sleep Modes • I2C Interface – 1MHz APPLICATIONS • Solid-State Drives (SSD) • FPGA • Computer Vision • Portable Audio / Video GENERAL DESCRIPTION The ACT88321 PMIC is an integrated ActiveCiPSTM power management integrated circuit. It powers a wide range of processors, including solid-state drive applications, video processors, FPGA’s, wearables, peripherals, and microcontrollers. The ACT88321 is optimized for SSD and FPGA applications. A similar product, ACT88328, is optimized for video and wearables applications. The ACT88321 is highly flexible and can be reconfigured via I2C for multiple applications without the need for PCB changes. The low external component count and high configurability significantly speeds time to market. Examples of configurable options include output voltage, startup time, slew rate, system level sequencing, switching frequency, sleep modes, operating modes etc. ACT88321 is programmed at the factory with a default configuration. These settings can be optimized for a specific design through the I2C interface. The ACT88321 is available in several default configuration. Contact the factory for specific default configurations. The core of the device includes three DC/DC step down converters using integrated power FETs, two low-dropout regulators (LDOs). Buck1 and LDO1 can be configured as a load switch. Buck1 is a peak current mode, fixed frequency DC-DC step down converter that is optimized for output voltage closes to the input voltage. Buck1 switches at either 1.125MHz or 2.25MHz, requiring only three small components for operation. Buck2 and Buck3 use an asynchronous constant on-time, ACOT, control architecture to optimize the load transient response with smaller output capacitors. The LDOs only require small ceramic capacitors. All outputs are highly configurable via the I2C interface. The ACT88321 PMIC is available in a 2.18 x 2.58 mm 30 ball WLCSP package. Datasheet Rev. A, October 27, 2020 | Subject to change without notice 1 of 52 www.qorvo.com ® TYPICAL APPLICATION DIAGRAM ACT88321 Advanced PMIC with 3 Bucks, 2 LDOs, and Load Bypass Switches 2.7V ~ 5.5V Input BUCK1 4A BUCK2 4A External DC/DC PG ENABLE ACT88321 BUCK3 2A LDO1 300mA 1A Load Switch LDO2 300mA SCL SDA GPIOs SOC Datasheet Rev. A. October 27, 2020 | Subject to change without notice 2 of 52 www.qorvo.com ACT88321 Advanced PMIC with 3 Bucks, 2 LDOs, ® and Load Bypass Switches FUNCTIONAL BLOCK DIAGRAM AVIN 1µF SCL SDA GPIO1 Digital GPIO2 Controller GPIO3 GPIO4 GPIO7 External EN SMPS PG GPIO5 GPIO6 LDO Input VIN_LDO 1µF LDO1 1µF AVIN LDO2 1µF FB_B1 Vref Buck1/ Bypass Controller Digital Core FB_B2 Vref Buck2 Controller Vref FB Vref FB_B3 Vref Buck3 Controller FB ACT88321 Input Rail VIN_B1 10µF 0.47µH SW_B1 FB_B1 2x 22µF PGND1 VIN_B2 Input Rail 10µF 0.47µH SW_B2 FB_B2 22µF PGND2 VIN_B3 Input Rail 10µF 0.47µH SW_B3 FB_B3 10µF PGND3 AGND Datasheet Rev. A. October 27, 2020 | Subject to change without notice 3 of 52 www.qorvo.com ACT88321 Advanced PMIC with 3 Bucks, 2 LDOs, ® and Load Bypass Switches ORDERING INFORMATION PART NUMBER ACT88321VU101-T VOUT1 2.9V VOUT2 0.93V VOUT3 1.8V VLDO1 LSW VLDO2 1.8V 7-bit I2C Address 0x25h Package 30 pin WLCSP ACT88321VUxxx-T Product Number Package Code Pin Count CMI Option Tape and Reel Note 1: Standard product options are identified in this table. Contact factory for custom options, minimum order quantity required. Note 2: All Qorvo components are RoHS Compliant and with Pb-free plating unless specified differently. The term Pb-free means semiconductor products that are in compliance with current RoHS (Restriction of Hazardous Substances) standards. Note 3: Package Code designator. “V” represents CSP. Note 4: Pin Count designator. “U” represents 30 pins. Note 5: “xxx” represents the CMI (Code Matrix Index) option The CMI identifies the IC’s default register settings. Datasheet Rev. A. October 27, 2020 | Subject to change without notice 4 of 52 www.qorvo.com ® PIN CONFIGURATION – WLCSP ACT88321 Advanced PMIC w.


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