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Qorvo ACT5102QI102-T
- Part No.:
- ACT5102QI102-T
- Manufacturer:
- Qorvo
- Package:
- 32-PowerVFQFN
- Datasheet:
-
ACT5102QI102-T.pdf
- Description:
- IC REG BUCK BOOST 5V 5A 32FCQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,346
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Product details
Overview
ACT5102QI102-T from Qorvo is a 32-pin, 4×4 mm FCQFN buck-boost DC/DC converter with four integrated NMOS switches, supporting 3.9V–23V input and 3.0V–23V programmable output voltage via external resistor divider (FB pin), 500 kHz switching frequency, and 25 mΩ/35 mΩ internal FETs. It delivers up to 5 A output current and integrates a 2V–5.1V/100 mA LDO for system peripherals - used in automotive power banks and industrial 24V supplies.
For engineers reviewing the ACT5102QI102-T datasheet, pinout, applications, or equivalent options, key selection considerations include external feedback configuration (no I²C), FB reference accuracy (2.00 V ±0.5%), thermal shutdown at 160°C, cycle-by-cycle current limiting, and compatibility with USB PD/QC3.0 cord compensation and slew rate control.
Technical Context
The ACT5102QI102-T implements a four-switch buck-boost topology with seamless mode transitions between buck, boost, and buck-boost operation - maintaining regulation when VIN is above, below, or equal to VOUT. Its control architecture uses an error amplifier (COMP pin) and external FB network to set output voltage, with no internal DAC or I²C interface (unlike ACT5101 variants).
It features dedicated current-sense inputs (ISRP/ISRN, OSRP/OSRN), dual high-side bootstrap pins (HSB1/HSB2), and analog ground (AGND) with Kelvin routing requirements. Thermal regulation includes die temperature monitoring and 160°C shutdown with 30°C hysteresis, while quiescent current in HIZ mode is 35 µA at 12V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.9V to 23V - supports wide-range sources including 12V automotive, 19V laptop adapters, and 24V industrial rails without dead zones. |
| Output Voltage Range | 3.0V to 23V - set externally via FB pin and resistor divider; factory default not programmed (n/a), enabling full design flexibility. |
| Switching Frequency | 500 kHz - fixed per ordering option; balances efficiency, inductor size, and EMI performance in compact 4×4 mm layout. |
| FET On-Resistance | Q1/Q4: 25 mΩ, Q2/Q3: 35 mΩ - minimizes conduction loss across all operating modes; enables >90% peak efficiency at mid-load. |
| FB Reference Voltage | 2.00 V ±0.5% - precision reference for external feedback loop; determines output accuracy (e.g., 5.0V output requires 1:1.5 divider ratio). |
| Output Current Capability | 0.5A to 5A - programmable constant-current limit via OLIM pin resistor; supports USB PD PPS and QC3.0 current negotiation. |
| LDO Output | VREG = 2V to 5.1V / 100 mA - adjustable low-dropout regulator powered from VIN; supplies MCU or sensors with OCP/UVLO protection. |
| Operating Temperature | −40°C to +85°C ambient - qualified for automotive cabin and industrial environments; junction max 150°C with θJA = 35°C/W. |
Pinout & Package
Thermally enhanced 32-lead FCQFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed PGND pad for PCB heat dissipation. Pin 1 marked by top-side dot; pin numbering follows standard QFN counter-clockwise convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 16,17) | Power Input | High-current input node; requires local 22–100 µF ceramic decoupling to PGND to minimize ripple and EMI. |
| VOUT (Pins 23,24) | Regulated Output | Main power rail output; connect 22–44 µF bulk capacitance to PGND; supports dynamic load steps up to 5 A. |
| SW1 (Pins 21,22), SW2 (Pins 18,19) | Switch Node Outputs | Drive external inductors; SW1 connects to Q1/Q2, SW2 to Q3/Q4; require tight layout and Kelvin sense routing. |
| FB (Pin 30) | Voltage Feedback Input | Connects to resistor divider midpoint; sets output voltage as VOUT = 2.00 V × (1 + R1/R2); no internal DAC or I²C control. |
| OLIM (Pin 29), ILIM (Pin 11) | Current Limit Programming | Resistor-to-AGND sets output (OLIM) and input (ILIM) current thresholds; enables precise protocol compliance (e.g., USB PD 3A/5A). |
| EN (Pin 8) | Enable Control | Active-high logic input; pulls high to enable converter; compatible with microcontroller GPIO or system power sequencer. |
| STAT (Pin 28), nIRQ (Pin 10) | Status & Fault Reporting | Open-drain outputs: STAT indicates enabled/valid output (LOW), nIRQ signals faults (LOW); both referenced to AGND. |
| HSB1 (Pin 25), HSB2 (Pin 15) | Bootstrap Supply | Provide gate drive voltage for high-side FETs; each requires 47 nF capacitor to respective SW pin (SW1/SW2). |
| AGND (Pins 1,9,32), PGND (Pins 5,20,Exposed Pad) | Analog & Power Ground | Separate AGND (Kelvin sense reference) and PGND (high-current return); must be connected via low-inductance path on PCB. |
| VREG (Pin 4) | LDO Output | Programmable 2–5.1 V / 100 mA supply; requires 1.0 µF ceramic capacitor to AGND; powers auxiliary circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Four-switch buck-boost topology | Enables continuous regulation across VIN/VOUT crossover without discontinuity or voltage dip during mode transitions. |
| External resistor-set output voltage | Eliminates need for I²C host controller; simplifies BOM and firmware for cost-sensitive applications like car chargers. |
| Integrated 25/35 mΩ NMOS FETs | Reduces external component count to only two inductors, four capacitors, and feedback resistors - shrinking solution size by >40% vs discrete designs. |
| Programmable output current limit | Supports USB PD 3.0 Programmable Power Supply (PPS) and QC3.0 adaptive charging via OLIM pin resistor selection. |
| Thermal shutdown with hysteresis | 160°C trip point with 30°C hysteresis prevents thermal runaway in enclosed enclosures; allows safe auto-recovery after cooling. |
| Low-quiescent-current HIZ mode | 35 µA input current at 12V enables >1-year battery standby in portable power banks without compromising fast wake-up. |
Applications
| Car Charger | Power Bank |
|---|---|
Use Scenario: 12V vehicle battery powering dual USB-A/C ports with variable output (5V/9V/15V/20V) for smartphones and laptops. IC Role / Device Role / Timing Role: Primary buck-boost regulator managing bidirectional power flow, voltage translation, and USB PD negotiation via external MCU. Use Value: Eliminates need for separate buck and boost ICs; handles cold-crank (6V) to load-dump (23V) transients while maintaining stable 5–20V output. | Use Scenario: Portable lithium-ion power bank delivering 5–20V output to charge tablets, notebooks, and accessories under varying load conditions. IC Role / Device Role / Timing Role: Core power conversion engine regulating output from single/dual-cell battery stack (3.0–8.4V) to USB PD-compliant levels. Use Value: Supports 5 A output current with <±4% CC regulation; built-in cord compensation compensates for cable IR drop during high-current charging. |
| 24V Industrial Supply | Solar-Powered Device |
Use Scenario: DIN-rail mounted 24V input supply generating isolated 5V/12V rails for PLC I/O modules and sensors in factory automation. IC Role / Device Role / Timing Role: Non-isolated buck-boost front-end converting unregulated 18–32V industrial bus to stable 5V system rail. Use Value: Wide 3.9–23V input range accommodates brownouts and surges; thermal regulation ensures reliability in sealed enclosures at 60°C ambient. | Use Scenario: Off-grid solar lighting system using 12–24V PV panel input to drive LED strings and charge backup batteries. IC Role / Device Role / Timing Role: MPPT-adjacent DC/DC stage regulating variable PV voltage to constant LED forward voltage or battery charge profile. Use Value: Seamless buck-boost operation maintains LED brightness as panel voltage drops at dusk; 500 kHz switching enables small magnetics for outdoor-rated compact housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACT5101QI102-T | I²C-programmable output voltage (0x24h address); includes ADC for voltage/current/temperature monitoring; internal feedback only. | Requires host MCU with I²C interface; suited for smart chargers needing real-time telemetry and dynamic reconfiguration. | Select ACT5101QI102-T when firmware-controlled voltage/current tuning and system health monitoring are required. |
| MP2960GQ-Z | Monolithic 4-switch buck-boost with I²C, 3.3–24V input, 0.8–24V output, 4.5A max; no external FB option; different pinout and package (QFN-24). | Targeted at space-constrained consumer electronics; lacks OLIM/ILIM pins for direct current limit programming. | Choose MP2960GQ-Z for simpler integration where I²C control suffices and external resistor feedback is unnecessary. |
Compared with ACT5101QI102-T, ACT5102QI102-T trades I²C configurability for reduced system complexity and lower BOM cost; versus MP2960GQ-Z, it offers external feedback flexibility and dedicated current-limit pins but requires more board area due to 32-pin QFN.
Availability
ACT5102QI102-T is available at Aetrix Electronics and suitable for car chargers, power banks, and 24V industrial supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ACT5102QI102-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Qorvo is a U.S.-based semiconductor company specializing in RF, power management, and motion sensor solutions for mobile, infrastructure, and defense markets.
The ACT510x family was designed for high-efficiency, wide-input-voltage buck-boost conversion in portable and automotive power systems - emphasizing integration, thermal robustness, and USB protocol compatibility.
FAQ
What is the function of the FB pin on the ACT5102QI102-T?
The FB (Feedback) pin on the ACT5102QI102-T is the voltage sensing input for the external resistor divider that sets the output voltage. It references a precise 2.00 V ±0.5% internal bandgap, so VOUT = 2.00 V × (1 + R1/R2). Unlike the ACT5101 series, the ACT5102QI102-T does not support I²C-based voltage programming - the FB pin is its sole output voltage control interface.
Does the ACT5102QI102-T support USB Power Delivery (PD) or Qualcomm Quick Charge (QC)?
Yes, the ACT5102QI102-T supports USB PD and QC3.0 protocols through hardware-level features: programmable output voltage (3.0–23V), ±4% constant-current regulation, cord compensation (100–300 mV), and controlled slew rates (0.1–1.0 V/ms). While it lacks native PD controller logic, it serves as the regulated power stage in host-managed PD/QC designs - the external MCU handles communication while ACT5102QI102-T executes voltage/current commands via FB, OLIM, and ILIM pins.
What is the maximum output current capability of the ACT5102QI102-T?
The ACT5102QI102-T supports up to 5 A output current, programmable via the OLIM pin resistor. Its ±4% output constant-current regulation accuracy applies across the full 0.5–5 A range. Peak current capability is limited by thermal design and FET RDS(on): Q1/Q4 at 25 mΩ and Q2/Q3 at 35 mΩ enable >90% efficiency at 3 A with proper heatsinking and PCB copper area.
How does thermal protection work on the ACT5102QI102-T?
The ACT5102QI102-T includes die-level thermal regulation with shutdown at 160°C and 30°C hysteresis. When junction temperature exceeds 160°C, the device disables switching and asserts nIRQ. It remains latched off until temperature falls below 130°C, then automatically resumes operation. This protects against sustained overload or poor heatsinking in sealed enclosures - no external thermal sensor or host intervention is required.
Can the ACT5102QI102-T operate with input voltage below 3.9V?
No - the ACT5102QI102-T has a minimum input voltage of 3.9V, enforced by internal UVLO circuitry. Below this threshold, the device remains in RESET or HIZ state and will not regulate. Attempting to operate below 3.9V risks failure to start or erratic behavior; for sub-3.9V battery applications (e.g., single Li-ion), a pre-regulator or alternative IC with lower VIN is required.
ACT5102QI102-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Qorvo
- Series:
- ACT510x
- Package/Case:
- 32-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.9V
- Voltage - Input (Max):
- 23V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-FCQFN (4x4)
ACT5102QI102-T FAQ
1.How can I place an order for ACT5102QI102-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ACT5102QI102-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ACT5102QI102-T reliable?
The price and inventory of ACT5102QI102-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ACT5102QI102-T is usually 5 days.
3.What payment methods are accepted for ACT5102QI102-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ACT5102QI102-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ACT5102QI102-T?
ACT5102QI102-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ACT5102QI102-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ACT5102QI102-T?
For technical support, including ACT5102QI102-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ACT5102QI102-T requirements.
6.How does Aetrix verify that ACT5102QI102-T is sourced from the original manufacturer or authorized distributors?
All ACT5102QI102-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ACT5102QI102-T meets industry standards.
7.What is the process for return or replacement of ACT5102QI102-T?
All ACT5102QI102-T units undergo pre-shipment inspection (PSI). If there is an issue with ACT5102QI102-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ACT5102QI102-T part is unused and in its original packaging.
Return procedure for ACT5102QI102-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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