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Overview
| Topology | Buck-Boost Converter |
| Input voltage | 4-23 V |
| Switching frequency | 125-1000 kHz |
Description
The ACT510x is a buck-boost converter with 4 integrated MOSFETs. It offers a high efficiency, low component counts, compact solution for a wide input voltage range from 4V to 23V application. The 4 internal low resistance NMOS switches minimize the size of the application circuit and reduce power losses to maximize efficiency. Internal high side gatedrivers, which require only the addition of two small external capacitors, further simplify the design process. An advanced switch control algorithm allows the buckboost converter to maintain output voltage regulation with input voltages that are above, below or equal to the output voltage. Transitions between these operating modes are seamless and free of transients and subharmonic switching.The ACT510x output voltage can be set between 3V ~23V which can be configured by either external resistor divider or I2C. The output constant current limit and cord compensation makes it flexible for any kinds of protocols like USB PD, QC 3.0/4.0 etc. The system canbe monitored and configured by I2C as well. The building ADC can be read for the information of input/output voltages and currents, die temperature, and generic input signals.ACT510x integrated a 100mA LDO output with OCP/UVLO protection to provide power for the MCU and other peripheral components inside the system.The ACT510x operation frequency can be configured from 125 kHz to 1MHz, makes the system design flexible for components size and efficiency optimization. The ACT510x has been optimized to reduce input current for applications which are sensitive to quiescent current draw, such as battery-powered devices. The AC5101 is available in 32-pin, 4 x 4 mm FCOL QFN package.
Features
- Buck-Boost Converter with 4 Integrated Switches
- Wide VIN Range: 4V to 23V (No Dead Zone)
- 3.0V to 23V Wide output Voltage Range
- Seamless Transition between Buck and Boost Operation
- Supports Programmable Power Supply (PPS)
- Programmable Frequency: 125KHz, 250KHz, 500kHz, and 1MHz
- 2V ~ 5V/100mA Programmable Output LDO
- +/-4% Output Constant Current Regulation (@10mΩ, 3A)
- Programmable Output Voltage and Current via both Pin and I2C
- Enable Pin for Power On/OFF Control
- Output Cord Compensation
- Programmable Output Soft-Start
- Cycle by Cycle Current Limit
- Built in ADC for Temperature, Input and Output Voltage and Current Monitoring
- 25mΩ FET from VIN to SW1
- 25mΩ FET from SW2 to VOUT
- 35mΩ FET from SW1 to PGND
- 35mΩ FET from SW2 to PGND
- Thermal Protection
- Thermally Enhanced 32-Lead 4mx4mm QFN
Typical applications
- Solar Powered Devices
- Solid-State Lighting
- Car Charger / Docking Stations / Multiple Power Source Supplies / DC UPS
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | RDC max.(mΩ) | fres(MHz) | Mount | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Z(mΩ) | Interface Type | Type | Gender | Pins | IR(A) | Working Voltage(V (AC)) | H(mm) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-XHMI SMT Power Inductor, 10 µH, 6.4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-XHMI SMT Power Inductor | Inductance10 µH | Performance Rated Current6.4 A | Saturation Current @ 30%9.7 A | DC Resistance26.5 mΩ | DC Resistance29.15 mΩ | Self Resonant Frequency18 MHz | MountSMT | – | – | – | – | – | – | – | – | Length6.65 mm | – | – | – | – | – | Pins2 | Rated Current5 A | – | Height6.1 mm | Operating Temperature -40 °C up to +125 °C | ||||
 | WCAP-ATG8 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | Capacitance220 µF | Rated Voltage16 V (DC) | Endurance 2000 | Ripple Current308 mA | Leakage Current35.2 µA | Dissipation Factor16 % | Pitch2.5 mm | Diameter6.3 mm | Length11 mm | PackagingAmmopack | – | – | – | – | – | – | – | – | – | ||||
| WCAP-ATG8 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | Capacitance100 µF | Rated Voltage25 V (DC) | Endurance 2000 | Ripple Current209 mA | Leakage Current25 µA | Dissipation Factor14 % | Pitch2.5 mm | Diameter6.3 mm | Length11 mm | PackagingAmmopack | – | – | – | – | – | – | – | – | – | ||||
| WCAP-ATG8 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG8 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | Capacitance220 µF | Rated Voltage25 V (DC) | Endurance 2000 | Ripple Current310 mA | Leakage Current55 µA | Dissipation Factor14 % | Pitch2.5 mm | Diameter6.3 mm | Length11 mm | PackagingAmmopack | – | – | – | – | – | – | – | – | – | ||||
 | WCAP-ASLI Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ASLI Aluminum Electrolytic Capacitors | – | – | – | – | – | – | MountV-Chip SMT | Capacitance100 µF | Rated Voltage25 V (DC) | Endurance 2000 | Ripple Current290 mA | Leakage Current25 µA | Dissipation Factor14 % | – | Diameter6.3 mm | Length7.7 mm | Packaging15" Tape & Reel | Impedance380 mΩ | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +105 °C | ||||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | Pitch2.54 mm | – | Length12.7 mm | PackagingBag | – | – | TypeStraight | GenderPin Header | Pins5 | Rated Current3 A | Working Voltage250 V (AC) | – | Operating Temperature -40 °C up to +105 °C | |||
 | WR-USB Standard Connectors, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Standard Connectors | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | – | PackagingTray | – | Interface TypeType A | TypeHorizontal | GenderReceptacle | Pins4 | Rated Current1.5 A | Working Voltage30 V (AC) | – | Operating Temperature -40 °C up to +105 °C |