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

Diodes Incorporated AP130-20RG-7

Name: AP130-20RG-7
Brand: Diodes Incorporated
SKU: AP130-20RG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP130-20RG-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP130-20RG-7.pdf

Description:: IC REG LINEAR 2V 300MA SC59R

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

AP130-20RG-7 from Diodes Incorporated is a 300mA fixed-output 2.0V low-dropout linear regulator in SC59R package, featuring 400mV dropout at full load, ±2% output accuracy, and 50µA quiescent current. It integrates PMOS pass element, thermal shutdown, and current-limit protection for battery-powered peripherals requiring stable low-voltage supply.

For engineers reviewing the AP130-20RG-7 datasheet, AP130-20RG-7 pinout, AP130-20RG-7 application, or AP130-20RG-7 equivalent, key selection criteria include dropout voltage under 300mA load, 2.0V output tolerance, SC59R thermal resistance (250°C/W), and compatibility with 1µF input / 10µF output capacitor network.

Technical Context

The AP130-20RG-7 uses an internal PMOS pass transistor with 1.5Ω R_ON, eliminating base drive current and enabling ultra-low quiescent current. Its error amplifier compares output against a 1.08V bandgap reference to regulate 2.0V output with <40mV load regulation across 1–300mA.

Protection circuitry includes fold-back short-circuit current limiting (150–300mA) and thermal shutdown triggered above +125°C junction temperature. PSRR reaches 58dB at 100Hz with specified 1µF/10µF capacitors, supporting noise-sensitive analog and RF subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.0V ±2% - ensures stable core voltage for 2.0V logic rails without external feedback.
Max Output Current	300mA - supports moderate-power microcontrollers, sensors, and interface ICs.
Dropout Voltage	400mV @ 300mA - enables operation down to 2.4V input, critical for single-cell Li-ion or dual-cell alkaline systems.
Quiescent Current	50µA typical - minimizes standby power loss in always-on battery applications.
PSRR	58dB @ 100Hz - suppresses switching noise from upstream DC/DC converters feeding the LDO.
Thermal Shutdown	Active >125°C - prevents permanent damage during sustained overload or poor PCB heatsinking.
Line Regulation	0.1–0.3%/V - maintains output stability despite input rail sag during transient loads.

Pinout & Package

AP130-20RG-7 is packaged in SC59R - a lead-free, RoHS-compliant 3-pin SOT-23 variant with reversed pinout (GND–OUT–IN, top view). Thermal resistance is 250°C/W (junction-to-ambient) on standard FR-4 board.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Ground reference for error amplifier and thermal sensor; must connect to low-impedance ground plane.
2	OUT	Regulated 2.0V output; requires ≥10µF ceramic capacitor to ground for stability.
3	IN	Input supply (2.7–5.5V); needs ≥1µF bypass capacitor close to pin to suppress high-frequency noise.

Key Features

Feature	Design Value
PMOS Pass Element	1.5Ω R_ON eliminates base current draw, enabling true 50µA quiescent operation independent of load.
Fold-Back Current Limit	Reduces short-circuit current to 150–300mA, lowering power dissipation during fault conditions.
Fast Transient Response	Maintains <±20mV output deviation during 100mA load steps, minimizing need for large output capacitance.
Green Molding Compound	Halogen-free (no Br/Sb), compliant with environmental standards for consumer and industrial end equipment.

Applications

Wireless Sensor Node

USB Peripheral Controller

Use Scenario: Sub-1W IoT node powered by coin cell or small LiPo battery with intermittent BLE transmission.

IC Role / Device Role / Timing Role: Primary 2.0V supply for MCU, RF transceiver, and analog sensor front-end.

Use Value: 50µA quiescent current extends battery life beyond 1 year; 400mV dropout allows operation until battery reaches 2.4V.

Use Scenario: Self-powered USB 2.0 hub or HID device drawing up to 300mA from host VBUS.

IC Role / Device Role / Timing Role: Local 2.0V regulator for USB PHY and microcontroller core logic.

Use Value: PSRR >58dB at 100Hz attenuates VBUS ripple from host switcher, preventing data corruption.

Industrial Data Acquisition Module

Embedded Display Backlight Driver

Use Scenario: DIN-rail mounted sensor concentrator with isolated RS-485 and ADC subsystem.

IC Role / Device Role / Timing Role: Clean 2.0V rail for precision ADC reference buffer and signal conditioning op-amps.

Use Value: ±2% output accuracy and <40mV load regulation ensure <0.1% measurement error across full operating range.

Use Scenario: Small-form-factor LCD module with integrated LED driver IC requiring stable 2.0V bias.

IC Role / Device Role / Timing Role: Dedicated low-noise supply for LED driver control logic and PWM generator.

Use Value: Fast transient response prevents display flicker during brightness transitions; thermal shutdown protects against enclosure overheating.

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-2.0TRG1	Higher I_Q (120µA), same SC59R package and 2.0V output.	Lacks fold-back current limit; uses thermal shutdown only.	Select when lower cost outweighs quiescent current penalty and fault protection depth.
MCP1700T-2002E/TT	250mA max output, SOT-23 package, 1.6µA I_Q; different pinout (IN–GND–OUT).	Lower current rating limits use to sub-250mA loads; ultra-low I_Q suits multi-year battery life.	Select for ultra-low-power applications where 300mA headroom is unnecessary.

Compared with AP2202K-2.0TRG1 and MCP1700T-2002E/TT, the AP130-20RG-7 uniquely balances 300mA capability, 50µA quiescent current, and fold-back current limiting in SC59R - making it optimal for mid-power battery devices needing robust fault handling without sacrificing efficiency.

Availability

AP130-20RG-7 is available at Aetrix Electronics and suitable for wireless sensor nodes, USB peripheral controllers, and industrial data acquisition modules requiring stable component supply with guaranteed 2.0V ±2% output and SC59R footprint compatibility.

Supply support for AP130-20RG-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.

The AP130 series targets portable and space-constrained applications needing low-I_Q, fixed-output LDOs with integrated fault protection - emphasizing battery longevity and system robustness over programmability or ultra-low noise.

FAQ

What is the minimum input voltage required for AP130-20RG-7 to maintain regulated 2.0V output at 300mA?

The minimum input voltage is 2.4V, calculated as V_OUT + V_DROP = 2.0V + 0.4V. Below this, output voltage drops linearly with input. The device operates down to 2.7V input per specification, ensuring margin for line regulation and transient droop.

Can AP130-20RG-7 be used with ceramic output capacitors?

Yes - the datasheet specifies stability with ≥10µF ceramic capacitors (X5R/X7R) on the output. Unlike older LDOs, it does not require ESR-based damping, simplifying layout and reducing BOM count compared to tantalum or aluminum electrolytic alternatives.

How does the fold-back current limit behave during a short circuit?

Under short-circuit conditions (V_OUT < 1.05V), output current reduces to 150–300mA - significantly below the 300mA rated output. This lowers power dissipation (P = I × V_OUT) and prevents thermal runaway, allowing safe indefinite fault operation within ambient temperature limits.

Is AP130-20RG-7 compatible with reflow soldering per J-STD-020?

Yes - the SC59R package is qualified for standard Pb-free reflow profiles (peak 260°C, 20–40 sec above 217°C). The "G" suffix confirms green (halogen-free) molding compound, and the device meets JEDEC moisture sensitivity level MSL3, requiring bake only if exposed >168 hours at >60% RH.

AP130-20RG-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):: 2V

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-59R

AP130-20RG-7 FAQ

1.How can I place an order for AP130-20RG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP130-20RG-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 AP130-20RG-7 reliable?

The price and inventory of AP130-20RG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-20RG-7 is usually 5 days.

3.What payment methods are accepted for AP130-20RG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-20RG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP130-20RG-7?

AP130-20RG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP130-20RG-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 AP130-20RG-7?

For technical support, including AP130-20RG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-20RG-7 requirements.

6.How does Aetrix verify that AP130-20RG-7 is sourced from the original manufacturer or authorized distributors?

All AP130-20RG-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 AP130-20RG-7 meets industry standards.

7.What is the process for return or replacement of AP130-20RG-7?

All AP130-20RG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-20RG-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 AP130-20RG-7 part is unused and in its original packaging.

Return procedure for AP130-20RG-7:

1.Submit a request within 90 days.

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

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