My Inquiry
My Account
NXP Semiconductors PCA9410AUKZ
- Part No.:
- PCA9410AUKZ
- Manufacturer:
- NXP Semiconductors
- Package:
- 9-UFBGA, WLCSP
- Datasheet:
-
PCA9410AUKZ.pdf
- Description:
- IC REG BOOST 5V 500MA 9WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:944
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The PCA9410AUKZ from NXP Semiconductors is a 3.0 MHz, 500 mA step-up DC-DC converter in WLCSP9 package, converting 2.5 V–5.25 V input to a regulated 5.0 V output with ±3% accuracy and up to 94% efficiency. It features forced pass-through mode on EN low, soft-start with true load disconnect, and integrated overcurrent/over-temperature protection. It serves as a compact power management solution for NFC terminals and smartphone battery-powered subsystems.
For engineers reviewing the PCA9410AUKZ datasheet, PCA9410AUKZ pinout, PCA9410AUKZ application, or PCA9410AUKZ equivalent, this page delivers verified technical context, validated pin functions, confirmed operating modes (boost vs. forced pass-through), real-world layout constraints for WLCSP9, and alternative selection guidance grounded in functional behavior-not just parameter matching.
Technical Context
The PCA9410AUKZ implements a current-mode control architecture with synchronous rectification, enabling stable regulation across 2.5 V–5.25 V input and full-load conditions. Its 3.0 MHz switching frequency supports sub-1 µH inductor use and minimizes output ripple (2 mV p-p coherent noise, 660 µV rms).
Unlike the PCA9410, the PCA9410AUKZ enters forced pass-through mode when EN is pulled low-providing VIN-to-VOUT conduction without diode drop-while retaining PMOS overcurrent protection. Thermal shutdown triggers at 150 °C with 20 °C hysteresis, and UVLO has 2.1 V rising threshold with 70–120 mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±3% - tight regulation maintained across full load, input, and temperature range for stable USB-peripheral powering. |
| Switching Frequency | 3.0 MHz ±3% - enables use of 1 µH or smaller inductors and reduces EMI filtering burden in space-constrained mobile designs. |
| Max Output Current | 500 mA - sustained delivery under boost mode; limited by internal PMOS RDS(on) (80 mΩ) and thermal design. |
| Efficiency | Up to 94% - extends battery runtime in portable NFC readers and smartphone add-on modules. |
| Enable Logic | EN LOW = forced pass-through; EN HIGH = boost mode - eliminates external bypass FET in systems requiring seamless VIN-to-VOUT transition. |
| Input Voltage Range | 2.5 V to 5.25 V - supports single-cell Li-ion (3.0–4.2 V), Li-polymer, and boosted legacy rails. |
| Thermal Shutdown | 150 °C with 20 °C hysteresis - protects against sustained overload or poor PCB thermal relief in ultra-thin form factors. |
Pinout & Package
PCA9410AUKZ uses a Wafer-Level Chip-Size Package (WLCSP9) with 0.4 mm pitch, 1.24 × 1.24 × 0.525 mm body, and nine solder bumps arranged in a 3×3 grid. The package requires lead-free reflow per J-STD-020D and is moisture-sensitive (MSL level per packing label).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (A1, A2) | Regulated output node | Direct connection point for output capacitor (≥3.0 µF at 5 V); shortest possible trace to PGND required for loop stability. |
| VIN (A3) | Main power input | Accepts 2.5–5.25 V battery or rail; connects to input decoupling cap (≥2.2 µF) placed adjacent to pin. |
| SW (B1, B2) | Switching node | Drives external inductor; high dv/dt node requiring minimized loop area and ground shielding to reduce EMI. |
| EN (B3) | Enable control input | Active-high logic; pulling LOW forces pass-through mode (VIN → VOUT); internal 450–800 kΩ pull-down ensures safe default state. |
| PGND (C1, C2) | Power ground return | Low-impedance return path for inductor current and output capacitor; must be connected via shortest trace to COUT and CIN. |
| AGND (C3) | Analog reference ground | Signal reference for internal bandgap and error amplifier; tied to PGND at single-point star ground to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Forced Pass-Through Mode | EN low directly connects VIN to VOUT with minimal voltage drop-enables seamless operation during battery voltage sag without system reset. |
| Soft-Start with True Load Disconnect | Prevents inrush current during startup by limiting duty cycle ramp; output is fully disconnected until regulation is established. |
| Integrated Overcurrent Protection | Monitors PMOS current in real time; shuts down both switches and initiates 20 ms fault recovery timer upon violation. |
| High-Frequency Operation | 3.0 MHz switching allows 0603-size 1 µH inductors-reducing board area by >40% versus 1 MHz converters using 4.7 µH parts. |
| Ultra-Low Quiescent Current | 3.0 µA typical supply current in disable state-critical for always-on NFC terminals drawing microamps between transactions. |
Applications
| Smartphone Power Management | NFC Terminal Supply |
|---|---|
Use Scenario: Powering 5 V USB peripherals (e.g., OTG accessories) from a 3.6 V Li-ion battery in smartphones with dynamic voltage scaling. IC Role / Device Role / Timing Role: Step-up regulator providing stable 5.0 V rail with automatic pass-through when battery voltage exceeds 5 V, eliminating need for external OR-ing FETs. Use Value: Reduces bill-of-materials count and PCB footprint while maintaining USB compliance during battery discharge and charge cycles. | Use Scenario: Supplying 5 V to ISO14443-compliant NFC transceivers in handheld payment terminals operating from single-cell batteries. IC Role / Device Role / Timing Role: Primary DC-DC converter delivering regulated 5 V with fast transient response (<10 µs) to handle burst-mode RF transmission loads. Use Value: Enables >94% efficiency at 100–300 mA loads, extending terminal runtime per charge and minimizing thermal rise in sealed enclosures. |
| Portable Medical Sensor Hub | Wearable Biometric Module |
Use Scenario: Powering 5 V analog front-end ICs (e.g., ECG amplifiers, ADCs) in compact, battery-operated patient monitors. IC Role / Device Role / Timing Role: Low-noise boost converter supplying clean 5.0 V with <2 mV p-p coherent ripple-preserving signal integrity in high-resolution sensor chains. Use Value: Eliminates need for post-regulation LDOs, reducing component count and power loss while meeting IEC 60601 EMC requirements. | Use Scenario: Delivering 5 V to optical heart-rate sensors and BLE radios in wrist-worn devices where board space and thermal dissipation are constrained. IC Role / Device Role / Timing Role: Compact WLCSP9 regulator supporting 3.0 MHz operation to shrink passive components and enable integration beneath OLED displays. Use Value: Achieves 1.24 × 1.24 mm footprint-40% smaller than comparable QFN solutions-without sacrificing output current or thermal robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-up DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61291DRVR | Fixed 5.0 V output, 3.0 MHz, 500 mA; no forced pass-through mode-EN low fully disconnects input from output. | Suitable where total isolation during disable is preferred over VIN-to-VOUT continuity. | Select TPS61291DRVR if system requires complete input-output isolation during standby, not pass-through functionality. |
| MAX17222ELT+T | 5.0 V output, 2.0 MHz, 500 mA; includes true shutdown (0.1 µA IQ) but lacks pass-through mode and has higher output voltage tolerance (±4%). | Better for ultra-low-IQ applications where 3 MHz switching is not mandatory and ±3% accuracy is non-critical. | Choose MAX17222ELT+T when minimizing quiescent current in always-on sensing nodes outweighs need for forced pass-through or tight regulation. |
Compared with TPS61291DRVR and MAX17222ELT+T, the PCA9410AUKZ uniquely provides forced pass-through on EN low-enabling uninterrupted power delivery during battery voltage transitions-while maintaining ±3% output accuracy and 94% peak efficiency at 3 MHz, making it optimal for NFC and smartphone accessory rails demanding seamless voltage handoff.
Availability
PCA9410AUKZ is available at Aetrix Electronics and suitable for smartphone power management, NFC terminal supply, portable medical sensor hubs, and wearable biometric modules requiring stable component supply, consistent WLCSP9 packaging, and guaranteed long-term availability for consumer electronics production.
Supply support for PCA9410AUKZ 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
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and mobile applications, with leadership in RF, power management, and embedded security.
The PCA9410AUKZ belongs to NXP's ultra-compact DC-DC converter product line, designed specifically for space- and efficiency-critical battery-powered mobile interfaces including NFC, USB OTG, and sensor subsystems.
FAQ
What is the key functional difference between PCA9410AUKZ and PCA9410UKZ?
The PCA9410AUKZ enters forced pass-through mode when EN is pulled low-connecting VIN directly to VOUT-whereas the PCA9410UKZ fully disconnects input from output in disable state. This makes PCA9410AUKZ ideal for applications requiring uninterrupted power during battery voltage transitions, such as NFC polling in smartphones. Both share identical 3.0 MHz, 500 mA boost capability and WLCSP9 packaging.
Does PCA9410AUKZ require an external Schottky diode?
No, the PCA9410AUKZ does not require an external Schottky diode. It integrates synchronous rectification using internal PMOS and NMOS switches, eliminating diode forward voltage drop and improving efficiency. The device achieves up to 94% efficiency at full load without external diodes, simplifying layout and reducing BOM cost compared to asynchronous boost topologies.
What is the minimum recommended output capacitance for stable operation of PCA9410AUKZ?
The PCA9410AUKZ requires at least 3.0 µF of effective output capacitance at 5 V bias for loop stability and ripple suppression. Recommended implementations use a 22 µF X5R/X7R 0603 capacitor (e.g., TDK C1608X5R0J226M080AC), which delivers ~4.2 µF at 5 V. Using two 10 µF capacitors in parallel further reduces ESL and improves high-frequency noise rejection.
How does the soft-start function of PCA9410AUKZ prevent inrush current?
The PCA9410AUKZ implements a two-stage soft-start: first, a 1 A pre-charge current source brings VOUT to within 200 mV of VIN; second, a controlled duty-cycle ramp raises VOUT to 5.0 V while enabling PMOS current limiting. This sequence prevents large inrush currents and ensures true load disconnect until regulation is established-critical for protecting downstream USB peripherals during power-up.
Can PCA9410AUKZ operate with input voltages above 5.0 V?
Yes, the PCA9410AUKZ supports input voltages up to 5.25 V and automatically enters pass-through mode when VIN exceeds the 5.0 V output target. In this mode, it provides a low-impedance path from VIN to VOUT with minimal voltage drop-enabling efficient operation even when battery voltage rises near full charge. Absolute maximum VIN rating is +6.0 V, but continuous operation above 5.25 V is not recommended.
PCA9410AUKZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 9-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.25V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500mA
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-WLCSP (1.24x1.24)
PCA9410AUKZ FAQ
1.How can I place an order for PCA9410AUKZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA9410AUKZ 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 PCA9410AUKZ reliable?
The price and inventory of PCA9410AUKZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA9410AUKZ is usually 5 days.
3.What payment methods are accepted for PCA9410AUKZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA9410AUKZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA9410AUKZ?
PCA9410AUKZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA9410AUKZ 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 PCA9410AUKZ?
For technical support, including PCA9410AUKZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA9410AUKZ requirements.
6.How does Aetrix verify that PCA9410AUKZ is sourced from the original manufacturer or authorized distributors?
All PCA9410AUKZ 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 PCA9410AUKZ meets industry standards.
7.What is the process for return or replacement of PCA9410AUKZ?
All PCA9410AUKZ units undergo pre-shipment inspection (PSI). If there is an issue with PCA9410AUKZ, 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 PCA9410AUKZ part is unused and in its original packaging.
Return procedure for PCA9410AUKZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PCA9410AUKZ Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
