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

Diodes Incorporated AP130-18YG-13

Name: AP130-18YG-13
Brand: Diodes Incorporated
SKU: AP130-18YG-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP130-18YG-13

Manufacturer:: Diodes Incorporated

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

Package:: TO-243AA

Datasheet:: AP130-18YG-13.pdf

Description:: IC REG LINEAR 1.8V 300MA SOT89-3

Quantity:: RFQ Add To RFQ list

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Inventory:4,133

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Product details

Overview

AP130-18YG-13 from Diodes Incorporated is a 300mA fixed-output low-dropout linear regulator with 1.8V output voltage, 400mV dropout at full load, ±2% output accuracy, and 50µA quiescent current-designed for battery-powered peripherals requiring stable low-voltage rail generation in compact SOT89-3L packages.

For engineers reviewing the AP130-18YG-13 datasheet, AP130-18YG-13 pinout, AP130-18YG-13 application, or AP130-18YG-13 equivalent, key selection criteria include dropout performance under 300mA load, thermal resistance (θ_JA = 100°C/W), PSRR (58dB @ 100Hz), short-circuit fold-back protection, and green RoHS-compliant packaging.

Technical Context

The AP130-18YG-13 integrates a PMOS pass element with no base current draw, enabling ultra-low quiescent current (50µA typ) across 0–300mA load range. Its internal bandgap reference and error amplifier deliver tight 2% output voltage accuracy over –40°C to +85°C ambient.

Protection circuitry includes thermal shutdown triggered at junction temperatures >125°C and current-limit fold-back that reduces short-circuit current to 150–300mA-preventing latch-up during sustained overload while maintaining stability with ≥10µF output capacitance.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.8V ±2% - ensures compatibility with 1.8V logic rails (e.g., I/O interfaces of microcontrollers and FPGAs)
Max Output Current	300mA continuous - supports power delivery to multiple low-power ICs on a single rail
Dropout Voltage	400mV @ 300mA - enables operation down to VIN = 2.2V while sustaining 1.8V output
Quiescent Current	50µA typ @ no load - minimizes standby power loss in always-on battery systems
PSRR	58dB @ 100Hz - suppresses ripple from noisy switching supplies feeding the LDO input
Thermal Resistance θ_JA	100°C/W (SOT89-3L, no heatsink) - defines maximum power dissipation (300mW) before thermal shutdown
Protection Features	Current limit fold-back + thermal shutdown - prevents permanent damage during sustained overloads or ambient overheating

Pinout & Package

SOT89-3L package: 3-pin surface-mount device with exposed thermal pad (no internal heatsink required); footprint matches JEDEC TO-243AA standard; recommended land pattern per Diodes AP02007.

Pin/Terminal	Circuit Role	Design Meaning
1 (OUT)	Regulated output node	Connects directly to load; requires ≥10µF ceramic capacitor to ground for stability
2 (GND)	Analog and power ground reference	Must be low-impedance connection; ties internal error amp, bandgap, and thermal sensor to common reference
3 (IN)	Unregulated input supply	Accepts 2.7–5.5V; must be decoupled with ≥1µF capacitor near pin to suppress transients

Key Features

Feature	Design Value
PMOS pass transistor	Zero gate drive current eliminates base-current losses-enabling 50µA IQ independent of load
Fast transient response	Stabilizes within <10µs after 100mA step load change-critical for burst-mode digital loads
Green molding compound	Halogen-free, Br/Sb-free epoxy-meets IPC-4101D/21 and JEDEC J-STD-020 reflow requirements
Short-circuit fold-back	Reduces output current to 150–300mA during hard shorts-limits power dissipation and junction temperature rise
Thermal shutdown threshold	Activates at T_J >125°C with hysteresis-allows safe cooldown before automatic recovery

Applications

Wireless Communication Modules

PC Peripherals

Use Scenario: Powering RF transceivers (e.g., Bluetooth LE SoCs) in USB dongles or embedded modules where input derives from shared 3.3V switcher rail.

IC Role / Device Role / Timing Role: Low-noise post-regulator providing clean 1.8V supply to RF analog blocks and digital core logic.

Use Value: 58dB PSRR at 100Hz attenuates switching noise from upstream DC/DC converter, reducing EVM degradation in 2.4GHz transmission.

Use Scenario: Supplying 1.8V I/O banks of USB 3.0 hub controllers or SATA bridge ICs on add-in cards.

IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable voltage to high-speed interface I/Os with minimal load regulation drift.

Use Value: 30mV load regulation (1–300mA) ensures signal integrity margins remain intact across dynamic bus activity.

Battery-Powered Sensors

Optical Storage Interfaces

Use Scenario: Regulating power for ultra-low-power environmental sensors (e.g., I²C temperature/humidity nodes) operating from coin-cell or Li-ion sources.

IC Role / Device Role / Timing Role: Primary voltage regulator enabling deep-sleep modes with sub-100µA system quiescent current.

Use Value: 50µA typical IQ extends shelf life of sealed battery packs by >2× versus higher-IQ alternatives.

Use Scenario: Providing 1.8V bias to laser diode drivers and servo control ICs in CD-ROM/DVD optical pickup assemblies.

IC Role / Device Role / Timing Role: Precision voltage source stabilizing analog front-end gain and offset calibration points.

Use Value: ±2% output accuracy and 50ppm/°C tempco maintain consistent optical power control across –10°C to +60°C operating range.

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-18TRG1	250mA max output, 600mV dropout @ full load, SOT23-5 package	Limited current headroom for multi-load rails; smaller footprint but higher thermal resistance (200°C/W)	Select when board space is constrained and peak load ≤200mA; verify thermal margin with PCB copper area
TPS73118DBVR	300mA, 170mV dropout @ 100mA, 120µA IQ, SOT23-5	Lower dropout improves efficiency at light loads but higher IQ increases standby drain	Prefer for systems prioritizing minimum VIN (e.g., single-cell LiFePO₄) over battery longevity in always-on mode

Compared with AP2202K-18TRG1 and TPS73118DBVR, the AP130-18YG-13 delivers optimal balance of ultra-low IQ (50µA), robust 300mA capability, and proven thermal performance in SOT89-3L-making it ideal for cost-sensitive, thermally constrained, battery-backed applications where long service life is critical.

Availability

AP130-18YG-13 is available at Aetrix Electronics and suitable for wireless communication modules, PC peripherals, and battery-powered sensors requiring stable component supply with guaranteed green RoHS compliance and tape-and-reel packaging (2500 units per reel).

Supply support for AP130-18YG-13 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' precision LDO portfolio-engineered specifically for portable and peripheral applications demanding low IQ, tight output tolerance, and integrated fault protection in compact lead-free packages.

FAQ

What is the minimum input voltage required for AP130-18YG-13 to maintain regulation?

The AP130-18YG-13 requires VIN ≥ VOUT + VDROP = 1.8V + 0.4V = 2.2V to sustain regulation at 300mA load. At lighter loads, dropout decreases-e.g., ~150mV at 50mA-allowing operation down to 1.95V input. Below 2.7V input, line regulation degrades per datasheet Note 2.

Can AP130-18YG-13 be used without an output capacitor?

No. A minimum 10µF ceramic capacitor is mandatory between OUT and GND for stability, as confirmed in Functional Descriptions (page 6). Omitting it causes oscillation and uncontrolled output ripple. The capacitor must be placed within 2mm of the OUT/GND pins with low-ESR (<100mΩ) construction.

Does AP130-18YG-13 support reverse polarity protection?

No. The AP130-18YG-13 lacks internal reverse-voltage blocking. Applying negative voltage to IN or OUT relative to GND may damage the PMOS pass transistor. External protection (e.g., series Schottky diode or dedicated reverse-protection IC) is required in systems prone to battery insertion errors or hot-swap events.

How does thermal shutdown behave during continuous overload?

When junction temperature exceeds 125°C, thermal shutdown disables the pass transistor, dropping output to near-zero. After cooldown to ~110°C (15°C hysteresis), the device automatically resumes regulation. This cycle repeats if overload persists-preventing permanent damage but not eliminating need for external current limiting in design.

AP130-18YG-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-243AA

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):: 1.8V

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:: SOT-89-3

AP130-18YG-13 FAQ

1.How can I place an order for AP130-18YG-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP130-18YG-13 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 AP130-18YG-13 reliable?

The price and inventory of AP130-18YG-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-18YG-13 is usually 5 days.

3.What payment methods are accepted for AP130-18YG-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-18YG-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP130-18YG-13?

AP130-18YG-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP130-18YG-13 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 AP130-18YG-13?

For technical support, including AP130-18YG-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-18YG-13 requirements.

6.How does Aetrix verify that AP130-18YG-13 is sourced from the original manufacturer or authorized distributors?

All AP130-18YG-13 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 AP130-18YG-13 meets industry standards.

7.What is the process for return or replacement of AP130-18YG-13?

All AP130-18YG-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-18YG-13, 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 AP130-18YG-13 part is unused and in its original packaging.

Return procedure for AP130-18YG-13:

1.Submit a request within 90 days.

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

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