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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Diodes Incorporated AP130-25WG-7

Name: AP130-25WG-7
Brand: Diodes Incorporated
SKU: AP130-25WG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP130-25WG-7

Manufacturer:: Diodes Incorporated

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: AP130-25WG-7.pdf

Description:: IC REG LINEAR 2.5V 300MA SC59

Quantity:: RFQ Add To RFQ list

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Inventory:4,134

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Product details

Overview

AP130-25WG-7 from Diodes Incorporated is a fixed 2.5V, 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 peripherals requiring stable low-noise supply under light-to-moderate load.

For engineers reviewing the AP130-25WG-7 datasheet, AP130-25WG-7 pinout, AP130-25WG-7 application, or AP130-25WG-7 equivalent, key selection criteria include dropout performance at 300mA, thermal resistance (250°C/W), SC59 lead-free packaging, fast transient response, and integrated short-circuit fold-back protection.

Technical Context

The AP130-25WG-7 uses a PMOS pass element with 1.5Ω R_ON, eliminating base drive current and enabling ultra-low quiescent current (50µA typical). Its bandgap-referenced error amplifier delivers tight load regulation (±30mV over 1–300mA) and line regulation (0.1%/V).

Internal protection includes thermal shutdown triggered above +125°C junction temperature and current limit (350–450mA) with fold-back behavior below 1.05V output-ensuring safe operation during sustained overload or short-circuit events without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.5V ±2% - ensures stable core logic supply for 2.5V I/O interfaces without external feedback.
Max Output Current	300mA - supports moderate-power microcontrollers, RF transceivers, or sensor signal chains.
Dropout Voltage	400mV @ 300mA - enables operation down to 2.9V input, critical for single-cell Li-ion or two-cell alkaline systems.
Quiescent Current	50µA typical - minimizes standby power loss in always-on battery applications like remote sensors.
PSRR	58dB @ 100Hz - suppresses ripple from noisy switching supplies feeding the LDO input.
Thermal Resistance θ_JA	250°C/W (SC59) - defines maximum power dissipation (≤360mW at 85°C ambient) before thermal shutdown.
Protection Features	Current limit + thermal shutdown + short-circuit fold-back - eliminates need for external fusing or thermal monitoring.

Pinout & Package

AP130-25WG-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)	Power Input	Accepts 2.7–5.5V input; requires ≥1µF ceramic decoupling close to pin to prevent instability.
2 (OUT)	Regulated Output	Delivers fixed 2.5V; requires ≥10µF output capacitor (low-ESR tantalum or ceramic) for stability and transient response.
3 (GND)	Ground Reference	Common return path for input/output capacitors and load; must connect directly to low-impedance ground plane.

Key Features

Feature	Design Value
PMOS Pass Element	1.5Ω R_ON enables zero base-drive current and 50µA quiescent draw across full load range.
Fast Transient Response	Stabilizes within <10µs after 100mA step load change-critical for burst-mode digital loads.
Load Regulation	±30mV over 1–300mA load range-maintains 2.5V integrity for precision analog circuitry.
Green Molding Compound	Halogen-free (no Br/Sb) and RoHS-compliant-meets IPC-1752A environmental compliance requirements.
Short-Circuit Fold-Back	Reduces output current to ≤150mA when V_OUT < 1.05V-limits power dissipation during fault conditions.

Applications

Wireless LAN Card Power

Battery-Powered Remote Sensor

Use Scenario: Powers 2.5V PHY layer and MAC controller on mini-PCIe WLAN cards operating from 3.3V or 5V host rails.

IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 2.5V supply with fast load-step recovery.

Use Value: 58dB PSRR at 100Hz rejects switching noise from upstream DC/DC converters, preventing packet errors.

Use Scenario: Supplies 2.5V ADC reference and ultra-low-power MCU in coin-cell–operated environmental monitors.

IC Role / Device Role / Timing Role: Standby-optimized LDO maintaining regulation during deep-sleep (50µA IQ) and active bursts (300mA peak).

Use Value: 400mV dropout allows >20% longer runtime from 3.0V nominal CR2032 cells versus higher-dropout alternatives.

USB Peripheral Hub IC Supply

Industrial RS-485 Transceiver Bias

Use Scenario: Provides regulated 2.5V to USB 2.0 hub controller ICs in bus-powered hubs where input varies from 4.75–5.25V.

IC Role / Device Role / Timing Role: Load-regulated voltage source ensuring consistent USB signaling margins across varying cable drop.

Use Value: ±30mV load regulation maintains V_IH/V_IL thresholds for reliable USB data eye compliance.

Use Scenario: Powers bias circuitry of isolated RS-485 transceivers in factory automation nodes powered by 5V field buses.

IC Role / Device Role / Timing Role: Noise-immune local supply decoupled from noisy 5V bus, supporting ±15kV ESD robustness.

Use Value: Integrated thermal shutdown prevents latch-up during 48V surge events on adjacent signal lines.

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
MCP1700T-2502E/TT	250mA max output, 170mV dropout @ 250mA, 2.0µA IQ - lower IQ but lower current capability.	Limited to sub-250mA loads; unsuitable for 300mA burst-mode transceivers.	Select when standby current dominates design (e.g., energy-harvesting nodes) and peak load ≤250mA.
TPS73025DBVR	200mA max, 120mV dropout @ 200mA, 330µA IQ - lower dropout but higher quiescent current.	Higher IQ increases battery drain in always-on sensing; lower current rating risks thermal stress at 300mA.	Prefer only if input headroom is <300mV and battery life is secondary to transient response.

Compared with MCP1700T-2502E/TT and TPS73025DBVR, AP130-25WG-7 uniquely balances 300mA delivery, 400mV dropout, and 50µA IQ in a cost-effective SC59 package-making it optimal for battery-powered peripherals needing both peak current headroom and multi-year shelf life.

Availability

AP130-25WG-7 is available at Aetrix Electronics and suitable for wireless communication modules, battery-powered remote sensors, and industrial RS-485 node designs requiring stable component supply with guaranteed long-term availability and RoHS-compliant green packaging.

Supply support for AP130-25WG-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 semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.

The AP130 series belongs to Diodes' precision LDO portfolio, engineered specifically for space-constrained, battery-sensitive applications demanding low dropout, ultra-low IQ, and robust fault protection without external components.

FAQ

What is the minimum input voltage required for AP130-25WG-7 to maintain 2.5V output at 300mA?

The minimum input voltage is 2.9V, calculated as V_OUT + V_DROP = 2.5V + 0.4V. Below this, output voltage drops linearly with input; operation below 2.7V is outside recommended conditions per datasheet Section 4.

Can AP130-25WG-7 be used with ceramic output capacitors?

Yes-datasheet Figure 1 specifies 10µF ceramic (X5R/X7R) or tantalum output capacitance. Ceramic capacitors are preferred for low ESR and improved transient response, provided they meet minimum 10µF value and voltage rating ≥6.3V.

Does AP130-25WG-7 require an input capacitor, and what value is recommended?

Yes-a minimum 1µF ceramic capacitor is required between IN and GND, placed within 5mm of the device. This stabilizes input impedance and prevents oscillation during high di/dt load steps, as confirmed in Typical Application Circuit on page 2.

How does the short-circuit fold-back protection behave during a sustained output short?

When V_OUT falls below 1.05V, the device reduces output current to 150–300mA (typical), limiting power dissipation to ~450mW. This prevents thermal runaway and allows safe recovery once the short is removed-no latch-up or manual reset required.

AP130-25WG-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:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 2.5V

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

AP130-25WG-7 FAQ

1.How can I place an order for AP130-25WG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP130-25WG-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 AP130-25WG-7 reliable?

The price and inventory of AP130-25WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-25WG-7 is usually 5 days.

3.What payment methods are accepted for AP130-25WG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-25WG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP130-25WG-7?

AP130-25WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP130-25WG-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 AP130-25WG-7?

For technical support, including AP130-25WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-25WG-7 requirements.

6.How does Aetrix verify that AP130-25WG-7 is sourced from the original manufacturer or authorized distributors?

All AP130-25WG-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 AP130-25WG-7 meets industry standards.

7.What is the process for return or replacement of AP130-25WG-7?

All AP130-25WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-25WG-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 AP130-25WG-7 part is unused and in its original packaging.

Return procedure for AP130-25WG-7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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