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Diodes Incorporated AP130-28WL-7
- Part No.:
- AP130-28WL-7
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AP130-28WL-7.pdf
- Description:
- IC REG LINEAR 2.8V 300MA SC59-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
AP130-28WL-7 from Diodes Incorporated is a fixed 2.8V, 300mA low-dropout linear regulator in SC59 package with 400mV dropout at full load, 50µA quiescent current, and ±2% output voltage accuracy-designed for battery-powered wireless modules requiring stable low-noise supply under light-to-moderate load.
For engineers reviewing the AP130-28WL-7 datasheet, AP130-28WL-7 pinout, AP130-28WL-7 application, or AP130-28WL-7 equivalent, key selection criteria include dropout performance at 300mA, thermal resistance (θJA = 250°C/W), SC59 footprint compatibility, and integrated short-circuit fold-back protection.
Technical Context
The AP130-28WL-7 uses a PMOS pass element with no base current draw, enabling ultra-low quiescent current across load range. Its bandgap reference and error amplifier deliver tight regulation (±2% VOUT) and fast transient response to load steps up to 300mA.
Internal current limit (350–450mA) and thermal shutdown prevent damage during fault conditions; short-circuit fold-back reduces power dissipation during output shorts, while PSRR of 58dB at 100Hz suppresses input ripple in noise-sensitive RF sections.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2% - ensures stable core voltage for 2.8V logic or analog circuitry without external feedback. |
| Max Output Current | 300mA continuous - supports moderate-power peripherals like Bluetooth transceivers or sensor interfaces. |
| Dropout Voltage | 400mV typ. at 300mA - enables operation down to 3.2V input, critical for single-cell Li-ion or 3.3V rail derating. |
| Quiescent Current | 50µA typ. at zero load - extends battery life in always-on standby modes of portable devices. |
| PSRR | 58dB at 100Hz - attenuates switching noise from upstream DC/DC converters feeding the LDO input. |
| Thermal Resistance θJA | 250°C/W (SC59) - defines maximum power dissipation (≈375mW at ΔT=94°C) before thermal shutdown triggers. |
| Protection Features | Current limit + thermal shutdown + short-circuit fold-back - prevents latch-up and catastrophic failure during overloads. |
Pinout & Package
AP130-28WL-7 is housed in SC59 package (3-pin, SOT-23 compatible outline), with 1.90mm × 2.90mm footprint and 1.30mm height. Pin 1 = IN, Pin 2 = OUT, Pin 3 = GND (top view, left-to-right).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Power Supply | Accepts 2.7–5.5V input; requires ≥1µF ceramic bypass capacitor close to pin for stability and transient response. |
| 2 (OUT) | Regulated Output | Delivers fixed 2.8V; requires ≥10µF low-ESR output capacitor (e.g., tantalum or polymer) for loop stability. |
| 3 (GND) | Ground Reference | Low-impedance return path for error amplifier and pass transistor; must connect directly to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS Pass Element | Zero gate drive current eliminates base current loss, enabling 50µA IQ independent of load. |
| Fast Transient Response | Stabilizes within <10µs after 100mA load step-critical for burst-mode wireless transmission. |
| Load Regulation | ±30mV over 1–300mA load range-ensures consistent voltage for ADC references or PLL VCO supplies. |
| Green Molding Compound | Halogen-free (no Br/Sb), RoHS-compliant packaging-meets environmental compliance for consumer electronics. |
| Short-Circuit Fold-Back | Reduces short-circuit current to 150–300mA-limits junction temperature rise during sustained faults. |
Applications
| Battery-Powered Wireless Sensor Node | USB Peripheral Power Management |
|---|---|
|
Use Scenario: Compact IoT sensor node powered by CR2032 or single-cell Li-ion, transmitting data via BLE or Zigbee. IC Role / Device Role / Timing Role: Primary 2.8V supply regulator for RF transceiver and microcontroller core. Use Value: 50µA quiescent current extends shelf life; 400mV dropout allows operation until battery reaches 3.2V. |
Use Scenario: USB-powered card reader or HID device drawing variable current up to 300mA from 5V bus. IC Role / Device Role / Timing Role: Local 2.8V LDO for smart-card interface IC or secure element. Use Value: ±2% output accuracy ensures reliable communication timing; PSRR rejects USB switcher noise. |
| Optical Drive Logic Supply | LAN Card PHY Voltage Rail |
|
Use Scenario: CD/DVD-ROM drive with separate 2.8V rail for servo control and laser driver logic. IC Role / Device Role / Timing Role: Dedicated low-noise regulator for precision analog front-end and motor control logic. Use Value: Low dropout preserves headroom during peak current pulses; thermal shutdown prevents overheating in enclosed chassis. |
Use Scenario: 10/100BASE-TX Ethernet card requiring clean 2.8V for PHY analog section and MDI interface. IC Role / Device Role / Timing Role: Post-regulator for noise-sensitive Ethernet PHY analog blocks. Use Value: 58dB PSRR at 100Hz suppresses switching noise from main 3.3V DC/DC, reducing EMI and jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP2202K-2.8TRG1 | Higher IQ (80µA), lower dropout (300mV @ 300mA), SOT-23-5 package with enable pin. | Requires enable control signal; better suited for systems needing dynamic power gating. | Select when active sequencing or lower dropout is prioritized over minimal footprint. |
| MCP1700T-2802E/TT | Lower IQ (1.6µA), same 2.8V output, but rated only to 250mA; SOT-23-3 package. | Limited to lighter loads; lacks short-circuit fold-back (only hiccup mode). | Choose for ultra-low-power sleep modes where peak current never exceeds 250mA. |
Compared with AP2202K-2.8TRG1 and MCP1700T-2802E/TT, the AP130-28WL-7 offers balanced performance: lowest cost per unit, proven thermal robustness in SC59, and integrated fold-back protection-making it optimal for cost-sensitive, medium-current industrial and consumer modules.
Availability
AP130-28WL-7 is available at Aetrix Electronics and suitable for battery-powered wireless sensors, USB peripherals, and optical drive logic circuits requiring stable component supply with lead-free, green-compliant packaging.
Supply support for AP130-28WL-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, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The AP130 series belongs to Diodes' general-purpose LDO portfolio, designed specifically for space-constrained, battery-operated applications demanding low quiescent current, tight output tolerance, and robust fault protection without external components.
FAQ
What is the minimum input voltage required for AP130-28WL-7 to maintain regulation at 300mA?
The minimum input voltage is calculated as VOUT + VDROP = 2.8V + 0.4V = 3.2V. At 300mA load and 25°C, regulation is maintained down to 3.2V input; below this, output voltage drops linearly with input. The absolute minimum input rating is 2.7V, but dropout margin shrinks significantly below 3.2V.
Can AP130-28WL-7 be used with ceramic output capacitors?
Yes, but only with ≥10µF capacitance and ≥10mΩ ESR. The AP130 requires minimum ESR for loop stability; standard X5R/X7R ceramics often have ESR <1mΩ and may cause oscillation. Use ceramic capacitors with added series resistor or select specialty low-ESR polymer/tantalum types verified in Diodes' AP02001 layout guide.
Does AP130-28WL-7 include reverse polarity protection?
No. The AP130-28WL-7 has no internal reverse-voltage protection. Applying reverse voltage (>−0.3V on IN or OUT relative to GND) can damage the PMOS pass transistor. External series diode or MOSFET-based reverse protection must be added if system-level polarity reversal is possible.
How does thermal shutdown behave during sustained overload?
When junction temperature exceeds +150°C, thermal shutdown disables the pass transistor, dropping output to near-zero. After cooldown to ~135°C, the device auto-restarts. Under continuous short-circuit, this results in hiccup-mode cycling-reducing average power dissipation and preventing permanent damage.
AP130-28WL-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- -
- PSRR:
- 58dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-59-3
AP130-28WL-7 FAQ
1.How can I place an order for AP130-28WL-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP130-28WL-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 AP130-28WL-7 reliable?
The price and inventory of AP130-28WL-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-28WL-7 is usually 5 days.
3.What payment methods are accepted for AP130-28WL-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-28WL-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP130-28WL-7?
AP130-28WL-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP130-28WL-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 AP130-28WL-7?
For technical support, including AP130-28WL-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-28WL-7 requirements.
6.How does Aetrix verify that AP130-28WL-7 is sourced from the original manufacturer or authorized distributors?
All AP130-28WL-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 AP130-28WL-7 meets industry standards.
7.What is the process for return or replacement of AP130-28WL-7?
All AP130-28WL-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-28WL-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 AP130-28WL-7 part is unused and in its original packaging.
Return procedure for AP130-28WL-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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