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Overview
| Topology | Buck Converter |
| Input voltage | 4-40 V |
| Output 1 | 24 V / 4 A |
| IC revision | 1.1 |
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
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | PCB/Cable/Panel | Modularity | Wire Section | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q (%) | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Color | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691214110002S | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp | Rising Cage Clamp | PCB | Yes | 30 to 16 (AWG) 0.05 to 1.31 (mm²) | – | – | – | – | -30 °C up to +120 °C | – | – | – | – | 7 | – | – | – | – | – | – | – | – | THT | – | – | – | 3.5 | – | 2 | – | – | – | Horizontal | 10 | Box | – | |
 | 74439358047 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-XHMI SMT Power Inductor | – | – | – | – | – | – | – | 8080 | -40 °C up to +125 °C | – | – | – | – | 8.8 | 8.3 | – | 4.7 | 13.35 | 16.65 | 8.65 | 9.51 | 22 | SMT | – | – | – | – | – | 2 | – | 7.8 | – | – | 9.5 | – | – | ||
 | 860010674014 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG8 Aluminum Electrolytic Capacitors | – | – | – | – | 100 µF | ±20% | 50 | – | – | – | 10 | – | – | 11.5 | – | – | – | – | – | – | – | – | – | 2000 | 286 | 50 | 3.5 | 8 | – | – | – | – | – | – | Ammopack | – | ||
 | 885012006051 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | 10 pF | ±5% | 50 | 0603 | -55 °C up to +125 °C | 600 | – | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | – | ||
| 885012206071 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | 100 nF | ±10% | 25 | 0603 | -55 °C up to +125 °C | – | 3.5 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | – | ||
| 885012206080 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | 330 pF | ±10% | 50 | 0603 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | – | ||
| 885012106010 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | 1 µF | ±20% | 10 | 0603 | -55 °C up to +85 °C | – | 10 | 0.1 GΩ | X5R Class II | 1.6 | 0.8 | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 0.8 | – | – | – | 7" Tape & Reel | – | ||
| 885012207103 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | 1 µF | ±10% | 50 | 0805 | -55 °C up to +125 °C | – | 10 | 0.1 GΩ | X7R Class II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | – | ||
| 885012107010 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | 10 µF | ±20% | 10 | 0805 | -55 °C up to +85 °C | – | 10 | 0.01 GΩ | X5R Class II | 2 | 1.25 | 0.5 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1.25 | – | – | – | 7" Tape & Reel | – | ||
 | 60910213421 | SPEC | – | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | 1000 MΩ | – | 5.08 | – | – | – | – | – | – | – | – | – | – | – | – | 2.54 | – | 2 | – | – | Jumper | – | 3 | Bag | Black | |
 | 61300111121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 2.54 | – | – | – | – | – | – | – | – | THT | – | – | – | 2.54 | – | 1 | Single | – | Pin Header | Straight | 3 | Bag | – | |
 | 61300211121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 5.08 | – | – | – | – | – | – | – | – | THT | – | – | – | 2.54 | – | 2 | Single | – | Pin Header | Straight | 3 | Bag | – | |
 | 61300411121 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD 2.54 mm THT Pin Header | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | 1000 MΩ | – | 10.16 | – | – | – | – | – | – | – | – | THT | – | – | – | 2.54 | – | 4 | Single | – | Pin Header | Straight | 3 | Bag | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691214110002S | SPEC | – |
| 74439358047 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | |
| 860010674014 | SPEC | |
| 885012006051 | SPEC | |
| 885012206071 | SPEC | |
| 885012206080 | SPEC | |
| 885012106010 | SPEC | |
| 885012207103 | SPEC | |
| 885012107010 | SPEC | |
| 60910213421 | SPEC | – |
| 61300111121 | SPEC | – |
| 61300211121 | SPEC | – |
| 61300411121 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | PCB/Cable/Panel | Modularity | Wire Section | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | Q (%) | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | L (µH) | IRP,40K (A) | ISAT,30% (A) | RDC typ. (mΩ) | RDC max. (mΩ) | fres (MHz) | Mount | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | Pins (pcs) | Rows | H (mm) | Gender | Type | IR (A) | Packaging | Color | Samples |
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