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Diodes Incorporated AP9050FDB-7
- Part No.:
- AP9050FDB-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Power Management - Specialized
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP9050FDB-7.pdf
- Description:
- IC OVP CONTROL UDFN2020
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
AP9050FDB-7 from Diodes Incorporated is a protection interface IC for PMICs featuring integrated over-voltage protection (OVP) control and an internal LDO regulator. It functions as a smart power switch with an n-channel MOSFET, enabling safe power-up sequencing and real-time OVP response (5 µs transient response, 9 V peak clamping) in battery-powered portable systems including smartphones and UMPCs.
For engineers reviewing the AP9050FDB-7 datasheet, AP9050FDB-7 pinout, AP9050FDB-7 application, or AP9050FDB-7 equivalent, this device delivers validated OVP-triggered FET gate control, stable LDO operation without external bypass capacitors, and thermal-aware U-DFN2020-6 packaging optimized for high-density PMIC front-end protection layouts.
Technical Context
The AP9050 integrates two independent silicon dies - one for the LDO regulator and one for the n-channel power MOSFET - co-packaged in a single U-DFN2020-6. The LDO powers the host PMIC's detection circuitry to validate input sources (e.g., USB or wall adapter), while the MOSFET acts as a pass-switch controlled by the PMIC via its gate terminal.
OVP sensing operates continuously: when VIN exceeds ~5.5 V, the device disables the MOSFET within 5 µs to isolate the PMIC. The LDO maintains 5.0 V ±0.3 V output across −40°C to +125°C with only 1000 mV headroom at 10 mA load, eliminating need for external stabilization capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 30 V - supports wide-input charging sources including USB 2.0/3.0 and AC-DC adapters. |
| LDO Output Voltage | 5.0 V ±0.3 V - powers PMIC logic and detection circuits with tight regulation across temperature. |
| MOSFET RDS(on) | 41 mΩ typ. @ VGS = 4.5 V - enables low-loss power delivery up to 2.7 A continuous at 85°C ambient. |
| OVP Response Time | 5.0 µs - fast shutdown prevents PMIC damage during fast-rising transients (e.g., hot-plug events). |
| Package Thermal Resistance | θJA = 132 °C/W - requires PCB copper thermal pads on both exposed die pads (Pins 3/7 and 6/8) for reliable operation. |
| Gate Threshold Voltage | VGS(th) = 0.62–1.2 V - ensures compatibility with low-voltage PMIC control signals (e.g., 1.8 V GPIO). |
Pinout & Package
The AP9050FDB-7 is housed in a 2.0 mm × 2.0 mm × 0.575 mm U-DFN2020-6 package with dual exposed thermal pads (Pin 3/7 and Pin 6/8) for enhanced heat dissipation. Both pads are electrically isolated but thermally critical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Source | Output of pass-switch; connects to PMIC VIN rail - must be routed with low-inductance trace. |
| 2 | Gate | FET control input; driven directly by PMIC GPIO - no external pull-up required due to internal biasing. |
| 3, 7 | VIN (LDO) | Input to integrated LDO; tied together internally - supplies regulated 5 V to PMIC logic. |
| 4 | Ground | LDO return path; must connect to clean analog ground plane adjacent to LDO output capacitor. |
| 5 | VOUT | LDO regulated output; powers PMIC detection circuitry - stable without external bypass capacitor. |
| 6, 8 | Drain | Input of pass-switch; connects to upstream power source (e.g., USB VBUS) - routed over thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-die architecture | Separate LDO and MOSFET dies in one package reduce board area and inter-die parasitics vs. discrete solutions. |
| Capacitorless LDO stability | Eliminates need for external output capacitor - reduces BOM count and layout complexity in space-constrained designs. |
| Fast OVP response | 5 µs reaction time to overvoltage events ensures PMIC protection before internal latch-up or damage occurs. |
| Thermally optimized U-DFN2020-6 | Dual exposed pads enable >30% lower junction-to-ambient thermal resistance than standard DFN packages of same footprint. |
| Wide input voltage range | 3–30 V operation supports legacy and next-gen chargers without external voltage scaling components. |
Applications
| Smartphone Charger Interface | UMPC Power Sequencing |
|---|---|
Use Scenario: Hot-plugging USB-C or proprietary wall adapters into smartphone mainboard during system boot. IC Role / Device Role / Timing Role: Protection interface that validates input voltage before enabling PMIC power rails and initiates immediate FET shutdown if OVP detected. Use Value: Prevents PMIC latch-up and battery charging circuit damage during unstable or counterfeit charger events. |
Use Scenario: Power-on sequence management for ultra-mobile PCs with dual-input (USB + barrel jack) charging capability. IC Role / Device Role / Timing Role: Enables PMIC-controlled power path selection and provides OVP-triggered isolation between input sources and system rails. Use Value: Ensures deterministic power-up timing and eliminates risk of cross-conduction or overvoltage stress during source switching. |
| Tablet Battery Protection | Portable Medical Monitor Input Stage |
Use Scenario: High-current charging (up to 2.7 A) of Li-ion battery packs in tablets using variable-output wall adapters. IC Role / Device Role / Timing Role: Acts as programmable pass-switch with OVP monitoring - gate driven by PMIC to coordinate charge enable/disable. Use Value: Maintains safe battery charging voltage window while supporting dynamic input voltage adaptation across adapter types. |
Use Scenario: Clinical-grade portable monitors requiring certified power integrity during field use with multiple AC/DC adapters. IC Role / Device Role / Timing Role: Front-end protection element ensuring PMIC remains within absolute max ratings under ESD and surge conditions. Use Value: Meets IEC 60601-1 creepage/clearance requirements via low-parasitic U-DFN2020-6 layout and sub-10 µs fault response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC protection interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS259211DRCR | Integrated eFuse with current limiting (not just OVP); higher RDS(on) (60 mΩ); requires external capacitor for stability. | Used where overcurrent protection is mandatory alongside OVP; less suitable for capacitorless LDO-dependent PMICs. | Select when combined OCP+OVP is required and board space allows for added passive components. |
| NIS5132MN | Discrete OVP controller + external MOSFET; no integrated LDO; slower response (>10 µs); larger solution size. | Applied in cost-sensitive industrial designs where PMIC has separate LDO or uses external bias supply. | Choose when design flexibility outweighs integration benefits and thermal performance is secondary. |
Compared with TPS259211DRCR and NIS5132MN, AP9050FDB-7 uniquely combines OVP-triggered MOSFET control, capacitorless LDO, and dual-die thermal packaging - making it optimal for compact, PMIC-centric portable devices where startup sequencing and transient immunity are critical.
Availability
AP9050FDB-7 is available at Aetrix Electronics and suitable for smartphone charger interfaces, UMPC power sequencing, and tablet battery protection requiring stable component supply and long-term lifecycle support.
Supply support for AP9050FDB-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management and signal integrity solutions for consumer, industrial, and computing markets.
The AP9050 belongs to Diodes' Protection Interface product line, engineered specifically to simplify PMIC integration in portable electronics by merging OVP control, LDO regulation, and MOSFET switching into a single thermally optimized package.
FAQ
Does AP9050FDB-7 require an external bypass capacitor on the LDO output?
No. The AP9050FDB-7's LDO is designed to operate stably without any external output capacitor across its full operating temperature range (−40°C to +125°C) and load conditions (1 mA to 10 mA). A 1 nF to 10 nF low-ESR capacitor may optionally improve transient response to fast ac noise, but it is not required for regulation stability.
What is the maximum continuous drain current supported by the integrated MOSFET?
The AP9050FDB-7 supports 3.7 A continuous drain current at TA = 25°C and 2.7 A at TA = 85°C, based on thermal limits defined in the datasheet (Pmax = 750 mW, θJA = 132 °C/W). Actual current capability depends on PCB copper area connected to the dual exposed thermal pads (Pins 3/7 and 6/8).
Can AP9050FDB-7 be used with PMICs that lack dedicated OVP control logic?
No. The AP9050FDB-7 relies on the host PMIC to drive the Gate (Pin 2) and interpret the LDO output (Pin 5) for power-up validation. It does not autonomously enable/disable the MOSFET - the PMIC must implement the OVP decision algorithm and issue the gate control signal. Standalone operation is not supported.
How are the dual exposed pads (Pins 3/7 and 6/8) connected on the PCB?
Pin 3 and Pin 7 are electrically connected to the LDO's VIN node and must be joined to the upstream power source (e.g., USB VBUS) via a shared copper pour. Pin 6 and Pin 8 connect to the MOSFET's Drain and must be tied to the same input source - but on a separate thermal pad to avoid coupling LDO and switch noise. Both pads require ≥30 mm² of 2 oz copper per the datasheet layout guidelines.
AP9050FDB-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Portable Equipment
- Current - Supply:
- 110µA
- Voltage - Supply:
- 3V ~ 30V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-6 (Type B)
AP9050FDB-7 FAQ
1.How can I place an order for AP9050FDB-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP9050FDB-7 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 AP9050FDB-7 reliable?
The price and inventory of AP9050FDB-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP9050FDB-7 is usually 5 days.
3.What payment methods are accepted for AP9050FDB-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP9050FDB-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP9050FDB-7?
AP9050FDB-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP9050FDB-7 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 AP9050FDB-7?
For technical support, including AP9050FDB-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP9050FDB-7 requirements.
6.How does Aetrix verify that AP9050FDB-7 is sourced from the original manufacturer or authorized distributors?
All AP9050FDB-7 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 AP9050FDB-7 meets industry standards.
7.What is the process for return or replacement of AP9050FDB-7?
All AP9050FDB-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP9050FDB-7, 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 AP9050FDB-7 part is unused and in its original packaging.
Return procedure for AP9050FDB-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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