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

Diodes Incorporated AP130-20SAG-7

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

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Part No.:: AP130-20SAG-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP130-20SAG-7.pdf

Description:: IC REG LINEAR 2V 300MA SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:1,031

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Product details

Overview

AP130-20SAG-7 from Diodes Incorporated is a 300mA fixed-output 2.0V low-dropout linear regulator in SOT23 package, featuring 400mV dropout at full load, ±2% output accuracy, and 50µA quiescent current. It integrates PMOS pass element with no base current draw, thermal shutdown, and current-limit protection-designed for battery-powered portable electronics requiring stable low-voltage supply.

For engineers reviewing the AP130-20SAG-7 datasheet, AP130-20SAG-7 pinout, AP130-20SAG-7 application, or AP130-20SAG-7 equivalent, key selection criteria include input voltage range (2.7–5.5V), dropout behavior under 300mA load, thermal resistance (θ_JA = 200°C/W), and compatibility with 1µF/10µF input/output capacitor configuration.

Technical Context

The AP130-20SAG-7 employs a PMOS pass transistor architecture enabling zero gate-drive current and inherently low quiescent consumption. Its error amplifier uses an internal 1.08V bandgap reference to regulate output against line and load variations.

Protection circuitry includes fold-back current limiting triggered below 1.05V output and thermal shutdown activated above +125°C junction temperature. Stability is guaranteed with ≥10µF ceramic output capacitance and requires no ESR tuning.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.0V ±2% - ensures precise rail generation for 2.0V logic or analog subsystems
Max Output Current	300mA - supports moderate-power microcontrollers, sensors, and interface ICs
Dropout Voltage	400mV (typ) at 300mA - enables operation down to 2.4V input while maintaining regulation
Quiescent Current	50µA (typ) - minimizes standby power loss in battery-critical applications
PSRR	58dB at 100Hz - suppresses low-frequency ripple from noisy DC-DC converters or shared rails
Line Regulation	0.1–0.3%/V - maintains tight output stability across full input range (2.7–5.5V)
Thermal Resistance θ_JA	200°C/W (SOT23) - defines maximum power dissipation limit (≤150mW at ΔT=30°C ambient rise)

Pinout & Package

AP130-20SAG-7 is housed in a RoHS-compliant, green molding compound SOT23-3 package (JEDEC TO-236AB), measuring 2.90 × 1.30 × 1.00 mm with gull-wing leads. Thermal performance is optimized for single-sided FR-4 PCBs with standard pad layout per AP02001.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN)	Power Input	Accepts 2.7–5.5V supply; requires ≥1µF bypass capacitor close to pin
2 (OUT)	Regulated Output	Delivers fixed 2.0V ±2%; requires ≥10µF low-ESR ceramic capacitor to ground for stability
3 (GND)	Ground Reference	Return path for load current and internal bias; must connect directly to low-impedance ground plane

Key Features

Feature	Design Value
PMOS Pass Element	Zero gate drive current eliminates base-current dependency, reducing system-level quiescent overhead
Fast Transient Response	Stabilizes within microseconds after load step changes-critical for burst-mode digital loads
Current Limit Fold-Back	Reduces short-circuit current to ≤150mA when V_OUT < 1.05V, limiting power dissipation during fault
Thermal Shutdown	Activates at T_J > +125°C and auto-recovers upon cooling-prevents permanent silicon damage
Green Molding Compound	Halogen-free (Br/Sb-free), compliant with IPC-4101D/21, suitable for eco-sensitive industrial designs

Applications

Portable Medical Sensors

USB Peripheral Controllers

Use Scenario: Compact wearable pulse oximeters powered by single-cell Li-ion batteries.

IC Role / Device Role / Timing Role: Primary 2.0V supply regulator for analog front-end and low-power MCU.

Use Value: 50µA quiescent current extends battery life between charges; 400mV dropout allows usable runtime down to 2.4V cell voltage.

Use Scenario: USB-to-UART bridge dongles with integrated 2.0V logic-level translation.

IC Role / Device Role / Timing Role: Local LDO supplying 2.0V to level-shifter ICs and USB PHY interface.

Use Value: PSRR of 58dB at 100Hz rejects noise from USB VBUS switching transients, ensuring clean signal integrity.

Industrial IoT Edge Nodes

Low-Power Display Modules

Use Scenario: Battery-operated environmental sensor nodes transmitting via LoRaWAN.

IC Role / Device Role / Timing Role: Stable 2.0V rail for ultra-low-power microcontroller and RF transceiver.

Use Value: ±2% output accuracy guarantees consistent ADC reference and RF biasing across temperature (-40°C to +85°C).

Use Scenario: OLED display modules in handheld test equipment with limited board space.

IC Role / Device Role / Timing Role: Dedicated 2.0V supply for display driver IC and gamma correction circuitry.

Use Value: SOT23-3 footprint enables high-density layout; thermal resistance of 200°C/W supports passive cooling in sealed enclosures.

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
MCP1700-2002E/TO	250mA max output, 170µA quiescent current, 600mV dropout at 250mA	Limited to lower current loads; higher IQ reduces battery life in always-on systems	Select when cost sensitivity outweighs current capability and quiescent optimization
TPS7A0520PDBVR	200mA max output, 25µA IQ, 175mV dropout at 200mA, enable pin included	Lower dropout and IQ but reduced current capacity; enable function adds control flexibility	Select when system requires ultra-low IQ and sequenced power-up, and 200mA suffices

Compared with MCP1700-2002E/TO and TPS7A0520PDBVR, AP130-20SAG-7 delivers higher output current (300mA) at lower dropout (400mV) and competitive quiescent current (50µA), making it optimal for compact, battery-powered systems needing both headroom and efficiency without enable control.

Availability

AP130-20SAG-7 is available at Aetrix Electronics and suitable for portable medical sensors, USB peripheral controllers, and industrial IoT edge nodes requiring stable component supply with lead-free, green-compliant packaging.

Supply support for AP130-20SAG-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' precision LDO portfolio, engineered specifically for space-constrained, battery-dependent applications where low dropout, low IQ, and robust fault protection are mandatory design requirements.

FAQ

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

The minimum input voltage is calculated as V_OUT + V_DROP = 2.0V + 0.4V = 2.4V. Per datasheet specifications, the device sustains regulation at 300mA load down to this input level, assuming junction temperature remains within -40°C to +125°C and output capacitor meets stability requirements.

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

Yes-AP130-20SAG-7 is explicitly designed for stability with ≥10µF ceramic output capacitors (X5R/X7R). The internal compensation does not require ESR, eliminating need for tantalum or aluminum electrolytic types and supporting compact, high-reliability layouts.

Does AP130-20SAG-7 include reverse polarity or reverse current protection?

No-the device lacks built-in reverse polarity or reverse current blocking. If input can fall below output (e.g., during hot-swap or backup battery scenarios), an external Schottky diode must be added between IN and OUT to prevent backfeed and potential damage.

What is the recommended PCB pad layout for thermal performance in SOT23 package?

Follow Diodes' AP02001 recommended land pattern: 1.50mm × 1.50mm copper pad for Pin 2 (OUT), connected to a solid ground plane via ≥2 thermal vias. Total exposed copper area should exceed 25 mm² to achieve the rated θ_JA = 200°C/W on standard FR-4.

AP130-20SAG-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:: SOT-23-3

AP130-20SAG-7 FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your AP130-20SAG-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 AP130-20SAG-7?

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

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

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

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

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

Return procedure for AP130-20SAG-7:

1.Submit a request within 90 days.

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

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