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Overview
| Topology | Buck Converter |
| Input voltage | 3.3 V |
| IC revision | 1.0 |
Description
The ACT88321 PMIC is an integrated ActiveCiPSTM power management integrated circuit. It powers a wide range of processors, including solid-state drive controllers, video processors, FPGA’s, wearables, peripherals, and microcontrollers. The ACT88321 is optimized for SSD ,FPGA and LPDDR5 applications. It 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 as low as 0.5V, startup time, slew rate, system level sequencing, switching frequency, sleep modes, operating modes etc. 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. Buck 1 regulator switches at either 1.125MHz or 2.25MHz, Bucks 2/3 switch at 1.5MHz,2MHz,2.5MHz,3.3MHz , requiring only three small components for operation. The LDOs only require small ceramic capacitors. All are highly configurable via the I2C interface. Package compatible with PTH boards.
Features
- 2.7V ~ 5.5V Input Voltage Range
- Buck 1: 4A Buck / Load Switch
- Buck 2: 4A Buck Optimized for Low Output Voltage Down to 0.5V
- Buck 3: 2A Buck Optimized for Low Output Voltage Down to 0.5V
- All Bucks Work with 0.47uH Inductors
- LDO1 : 390mA LDO, can be Configured as Load Switch for up to 1A
- LDO2: 390mA LDO
- I2C Serial Interface for Monitoring and Control
- 4 Configurable GPIOs
- Optimized Heavy/Light Load Efficiency
- PTH board compatible package
Typical applications
- Solid State Drives, FPGA, Computer Vision, Portable Audio / Video
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Pins2 | – | – | – | – | Inductance0.47 µH | Performance Rated Current5.35 A | Saturation Current @ 30%8 A | DC Resistance30 mΩ | Self Resonant Frequency145 MHz | Operating Voltage80 V | MountSMT | Length2.5 mm | Height1.2 mm | Rated Current3.4 A | – | Operating Temperature -40 °C up to +125 °C | ||||
 | WR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular, 2, Rising Cage Clamp | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 2141 - 3.50 mm Horiz. Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 24 to 16 (AWG) 0.2 to 1 (mm²) | – | – | – | – | – | – | MountTHT | Length7.05 mm | – | Rated Current10 A | Working Voltage300 V (AC) | Operating Temperature -40 °C up to +105 °C | ||
 | WR-PHD Pin Header - Single, 2, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | TypeStraight | – | – | – | – | – | – | – | MountTHT | Length5.08 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | |||
 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Dual | Pins14 | – | – | TypeStraight | – | – | – | – | – | – | – | MountTHT | Length17.78 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C |