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Qorvo ACT4751M | Demoboard ACT4751M-101-REF04
12 VDC Input, 80W (20V/4A) USB-C Charger (USB PD 3.0) with Cypress CCG3PA
Overview
| Topology | Boost Converter |
| Input voltage | 12 V |
| Switching frequency | 450-2250 kHz |
| Output 1 | 20 V / 4 A |
Description
Qorvo's ACT4751M is an automotive grade, programmable voltage regulator with bias supply rails for microcontrollers or USB PD controllers. It supports a wide input voltage range from 4.5 to 40 V and uses a synchronous step-down (buck) DC-to-DC architecture. It integrates both the high side and low side MOSFETS. These 50 mOhm on-resistance transistors enable high efficiency to reduce power losses.The product's main buck converter can be dynamically programed to an output voltage between 3 and 24 V in 12.5 mV steps via the I2C interface or analog feedback. It also can dynamically program output current between 0 and 4 A in 256 steps via the I2C interface in a constant-current (CC) operation mode. The main buck operates in a proprietary current mode control that supports external clock syncing for switching frequencies between 450 kHz and 2.25 MHz with features of 100% duty, out-of-AM radio frequency and spread-spectrum operation.ACT4751M is a perfect solution for USB Fast Charger applications based on the Power Delivery (PD) 3.0 and Programmable Power Supply (PPS) applications. The product integrates a 5 V / 350 mA mini-buck converter and a 20 mA AUX LDO of 0.9 V to 4.0 V to simplify application system designs. These rails can power up a controller and the 1.5 W VCONN line in active USB-C cables.ACT4751M provides an I2C port supporting fast-mode plus (Fm+, 1 MHz) with configurable address and also provides a full set of protections including UVLO, over-voltage input voltage lockout, OVP, UVP (Hiccup/Latch-off), OCP and TSD.ACT4751M is available in an AEC-Q100 grade, step-cut, side-wall-plating, 32-pin 5mm x 5mm QFN package with a power optimized footprint and exposed pad for improved thermal performance.
Features
- AEC-Q100 Grade 1: -40 to +125°C
- CISPR 25 Class 3: PASS
- Certified USB Fast Charger, Reference Designs
- Qualcomm Certified, Quick Charger 4+ Designs
- 4.5 to 40 V operational input voltage
- Programmable output voltage by I2C from 3 to 24 V in 12.5 mV steps
- Programmable output current limit from 0 to 4 A in 256 step resolution
- Automotive, side-wall-plating, 5 mm x 5 mm QFN package
Typical applications
- USB Fast Charger (PD 3.0 PPS) / Quick Charge 4, Quick Charge 4+, Quick Charge 3.0 / • High Power LED Lighting
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | Material | Interface Type | Gender | Mount | PCB Thickness(mm) | Working Voltage(V (AC)) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Pins2 | – | – | – | – | Inductance2.8 µH | – | – | DC Resistance3.3 mΩ | Self Resonant Frequency35 MHz | Performance Rated Current22.5 A | Saturation Current @ 10%8 A | Saturation Current @ 30%17.5 A | MaterialWE-PERM | – | – | MountSMT | – | – | – | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Pins2 | – | – | – | – | Inductance15.4 µH | – | – | DC Resistance14.8 mΩ | Self Resonant Frequency15 MHz | Performance Rated Current10 A | Saturation Current @ 10%3.5 A | Saturation Current @ 30%8 A | MaterialWE-PERM | – | – | MountSMT | – | – | – | ||||
 | WR-TBL Series 2365 - 5.08 mm Horiz. Entry w. Rising Cage Clamp, 2, Rising Cage Clamp | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 12 to 30 (AWG) 3.31 to 0.0509 (mm²) | – | Rated Current20 A | – | – | – | – | – | – | – | – | – | MountTHT | – | Working Voltage450 V (AC) | PackagingBox | |||
 | WR-USB Type C Connectors, 24, USB 3.1 | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Type C Connectors | Pins24 | – | – | TypeHorizontal | – | – | Rated Current5 A | – | – | – | – | – | – | – | Interface TypeType C | GenderReceptacle | MountTHR | PCB Thickness1 mm | Working Voltage48 V (AC) | PackagingTape and Reel | |||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | – | – | Inductance47 µH | Rated Current0.6 A | Saturation Current0.7 A | DC Resistance620 mΩ | Self Resonant Frequency11 MHz | – | – | – | – | – | – | MountSMT | – | – | – |