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

Diodes Incorporated AP130-28RG-7

Name: AP130-28RG-7
Brand: Diodes Incorporated
SKU: AP130-28RG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP130-28RG-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP130-28RG-7.pdf

Description:: IC REG LINEAR 2.8V 300MA SC59R

Quantity:: RFQ Add To RFQ list

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Inventory:1,558

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Product details

Overview

AP130-28RG-7 from Diodes Incorporated is a fixed 2.8V, 300mA low-dropout linear regulator in SC59R 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 variable load.

For engineers reviewing the AP130-28RG-7 datasheet, AP130-28RG-7 pinout, AP130-28RG-7 application, or AP130-28RG-7 equivalent, key selection criteria include dropout performance at 300mA, thermal shutdown behavior in compact SC59R layout, load regulation ≤40mV across 1–300mA, and compatibility with 10µF output capacitance for stability.

Technical Context

The AP130-28RG-7 uses a PMOS pass element with 1.5Ω on-resistance and no base drive current, enabling ultra-low quiescent current (50µA typ) independent of load. Its bandgap-referenced error amplifier delivers fast transient response and tight line regulation (0.3%/V max).

Internal protection includes fold-back current limiting (150–300mA short-circuit current), thermal shutdown activation at ~150°C junction temperature, and guaranteed operation from –40°C to +85°C ambient-making it suitable for unregulated input rails in portable peripherals.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.8V ±2% - ensures precise biasing for 2.8V logic or RF front-end ICs without external feedback.
Max Output Current	300mA - supports moderate-power microcontrollers, sensors, or transceivers in space-constrained designs.
Dropout Voltage	400mV @ 300mA - enables operation from 3.2V input (e.g., single Li-ion cell post-regulation) while maintaining regulation.
Quiescent Current	50µA typ - minimizes standby power loss in always-on battery devices like Bluetooth LE modules.
PSRR	58dB @ 100Hz - suppresses ripple from switching DC/DC stages upstream, critical for noise-sensitive analog sections.
Load Regulation	≤40mV @ 1–300mA - maintains voltage stability during dynamic load steps typical in burst-mode communication.
Thermal Shutdown	Active at ~150°C junction - protects device during sustained overload or poor PCB heat sinking in SC59R footprint.

Pinout & Package

AP130-28RG-7 is supplied in SC59R package: 3-pin, lead-free, green molding compound, 2.9mm × 1.3mm × 0.9mm body, with exposed pad not electrically connected. Thermal resistance θ_JA = 250°C/W (FR-4, single-sided, 2oz Cu).

Pin/Terminal	Circuit Role	Design Meaning
1 (GND)	Ground reference	Return path for internal bandgap, error amp, and current limit circuitry; must connect to low-impedance ground plane.
2 (OUT)	Regulated output	Delivers stable 2.8V to load; requires ≥10µF ceramic capacitor to ground for loop stability and transient response.
3 (IN)	Input supply	Accepts 2.7–5.5V; minimum headroom 400mV required at 300mA to avoid dropout; decoupling capacitor recommended.

Key Features

Feature	Design Value
PMOS pass transistor	RON = 1.5Ω with zero gate drive current-enables 50µA IQ independent of load, unlike NMOS-based LDOs.
Fold-back current limiting	Short-circuit current reduced to 150–300mA-limits power dissipation during fault, easing thermal design.
Stable with 10µF output cap	Guaranteed phase margin >45° using standard X5R/X7R ceramic capacitors-no ESR tuning required.
Green molding compound	Halogen-free (no Br, Sb) per Diodes Inc. specification-meets IPC-1752A material declaration requirements.

Applications

Wireless Sensor Node

USB Peripheral

Use Scenario: Sub-1W Zigbee or BLE sensor node powered by coin cell or single Li-ion battery.

IC Role / Device Role / Timing Role: Primary 2.8V supply for RF transceiver and MCU core, replacing inefficient resistor-capacitor dropper.

Use Value: 50µA quiescent current extends shelf life; 400mV dropout allows operation down to 3.2V input, maximizing usable battery range.

Use Scenario: Low-cost USB audio adapter or HID device drawing <300mA from host port.

IC Role / Device Role / Timing Role: Clean 2.8V rail for DAC, op-amps, or USB PHY interface, rejecting USB bus ripple.

Use Value: 58dB PSRR at 100Hz attenuates 50/60Hz coupled noise; ±2% accuracy ensures compliance with USB analog signal specs.

Industrial Data Logger

Embedded Display Module

Use Scenario: Battery-backed environmental logger operating at –40°C to +85°C in remote locations.

IC Role / Device Role / Timing Role: Regulated supply for precision ADC, real-time clock, and flash memory interface.

Use Value: Guaranteed 300mA output and thermal shutdown protect against overtemperature in sealed enclosures; wide input range accommodates aging battery voltage.

Use Scenario: Small OLED or segment LCD module in handheld medical or test equipment.

IC Role / Device Role / Timing Role: Dedicated 2.8V source for display driver IC and touch controller logic.

Use Value: Fast transient response prevents display flicker during backlight PWM transitions; load regulation ≤40mV maintains contrast consistency.

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-2802E/TT (Microchip)	250mA rated, 175mV dropout @ 250mA, 2.5µA IQ - lower IQ but lower current capability.	Best for ultra-low-power sub-250mA applications (e.g., RTC backup); insufficient for 300mA peak loads.	Select when standby current dominates design priority and peak load ≤250mA.
TPS73028DBVR (TI)	200mA rated, 120mV dropout @ 200mA, 330µA IQ - lower dropout but higher quiescent current and lower current rating.	Suitable for high-efficiency 200mA systems with tight input headroom; not viable for 300mA continuous loads.	Choose only if input voltage is tightly constrained (<3.0V) and load never exceeds 200mA.

Compared with MCP1700T-2802E/TT and TPS73028DBVR, AP130-28RG-7 uniquely balances 300mA delivery, 400mV dropout, and 50µA IQ in a cost-effective SC59R package-making it optimal for mid-current battery-powered systems where both runtime and peak load capability matter.

Availability

AP130-28RG-7 is available at Aetrix Electronics and suitable for wireless sensor nodes, USB peripherals, and industrial data loggers requiring stable component supply with RoHS-compliant, green-material packaging and tape-and-reel delivery.

Supply support for AP130-28RG-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, headquartered in Plano, Texas, serving automotive, industrial, computing, and consumer markets with high-reliability components.

The AP130 series belongs to Diodes' precision LDO portfolio, engineered specifically for battery-powered portable electronics needing low IQ, robust thermal protection, and multiple fixed-output voltages in compact packages.

FAQ

What is the minimum input voltage required for AP130-28RG-7 to maintain regulation at 300mA?

The AP130-28RG-7 requires a minimum input voltage of 3.2V to maintain 2.8V output regulation at 300mA load, based on its typical 400mV dropout voltage. Operation below this threshold causes output voltage to drop linearly with input; datasheet testing excludes VIN < 3V for dropout characterization.

Can AP130-28RG-7 be used with ceramic output capacitors?

Yes-AP130-28RG-7 is explicitly characterized and guaranteed stable with ≥10µF X5R or X7R ceramic capacitors on the output. No ESR requirement or damping resistor is needed, simplifying layout and reducing BOM count compared to older LDOs.

Does AP130-28RG-7 include reverse polarity protection?

No-AP130-28RG-7 lacks integrated reverse-voltage protection. Applying negative voltage to IN or OUT can damage the device. External protection (e.g., series diode or MOSFET) is required if system-level reverse polarity risk exists.

How does thermal shutdown behave under sustained overload?

Under sustained overload, AP130-28RG-7 activates thermal shutdown when junction temperature reaches ~150°C, disabling the pass transistor until temperature falls by ~20°C. This hysteresis prevents rapid cycling and provides fault containment without external intervention.

AP130-28RG-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):: 2.8V

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-59R

AP130-28RG-7 FAQ

1.How can I place an order for AP130-28RG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP130-28RG-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 AP130-28RG-7 reliable?

The price and inventory of AP130-28RG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-28RG-7 is usually 5 days.

3.What payment methods are accepted for AP130-28RG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-28RG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP130-28RG-7?

AP130-28RG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP130-28RG-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 AP130-28RG-7?

For technical support, including AP130-28RG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-28RG-7 requirements.

6.How does Aetrix verify that AP130-28RG-7 is sourced from the original manufacturer or authorized distributors?

All AP130-28RG-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 AP130-28RG-7 meets industry standards.

7.What is the process for return or replacement of AP130-28RG-7?

All AP130-28RG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-28RG-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 AP130-28RG-7 part is unused and in its original packaging.

Return procedure for AP130-28RG-7:

1.Submit a request within 90 days.

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

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