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

Diodes Incorporated AP130-35WG-7

Name: AP130-35WG-7
Brand: Diodes Incorporated
SKU: AP130-35WG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP130-35WG-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP130-35WG-7.pdf

Description:: IC REG LINEAR 3.5V 300MA SC59

Quantity:: RFQ Add To RFQ list

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Inventory:2,220

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Product details

Overview

AP130-35WG-7 from Diodes Incorporated is a 300mA fixed-output low-dropout linear regulator with 3.5V output voltage, ±2% accuracy, 400mV dropout at full load, 50µA quiescent current, and SC59 package. It integrates PMOS pass element, thermal shutdown, and current-limit protection. It is used in battery-powered wireless modules requiring stable low-noise 3.5V rail.

For engineers reviewing the AP130-35WG-7 datasheet, AP130-35WG-7 pinout, AP130-35WG-7 application, or AP130-35WG-7 equivalent, key selection criteria include dropout performance at 300mA, load regulation under dynamic current steps, thermal resistance in SC59, and compatibility with 1µF/10µF input/output capacitor network.

Technical Context

The AP130-35WG-7 uses a PMOS pass transistor with 1.5Ω on-resistance, eliminating base drive current and enabling ultra-low quiescent operation. Its error amplifier features bandgap reference and internal compensation, ensuring stability with ≥10µF ceramic output capacitance.

It implements fold-back short-circuit current limiting (150–300mA) and thermal shutdown triggered at junction temperatures exceeding +125°C. Line regulation is 0.1–0.3%/V and load regulation is 30–40mV across 1–300mA, supporting precision power delivery in portable systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	3.5V ±2% - delivers precise bias for 3.3V-tolerant logic or analog circuitry requiring margin above 3.3V
Dropout Voltage	400mV @ 300mA - enables operation down to 3.9V input while sustaining full rated load
Quiescent Current	50µA typ. - minimizes standby power loss in always-on battery applications
PSRR	58dB @ 100Hz - suppresses switching noise from upstream DC/DC converters feeding the LDO
Thermal Resistance θ_JA	250°C/W (SC59) - requires minimal PCB copper area for thermal management at 300mA continuous load
Current Limit	350–450mA - provides robust fault containment without latch-up during transient overloads
Operating Input Range	2.7V to 5.5V - supports single-cell Li-ion (3.0–4.2V), USB 5V, and dual-cell alkaline inputs

Pinout & Package

AP130-35WG-7 is housed in the SC59 surface-mount package (2.90 × 1.30 × 0.95 mm), lead-free and RoHS-compliant, with standard JEDEC moisture sensitivity level (MSL3).

Pin/Terminal	Circuit Role	Design Meaning
1 (IN)	Power Input	Accepts 2.7–5.5V supply; requires ≥1µF local ceramic decoupling to maintain PSRR and transient response
2 (OUT)	Regulated Output	Delivers stable 3.5V ±2%; requires ≥10µF low-ESR output capacitor for loop stability
3 (GND)	Ground Reference	Low-impedance return path for error amplifier and pass device; must connect directly to power plane

Key Features

Feature	Design Value
PMOS Pass Element	RON = 1.5Ω eliminates base current draw, enabling true 50µA IQ independent of load
Fast Transient Response	Stabilizes within <10µs after 100mA load step due to internal compensation and low output impedance
Thermal Shutdown	Activates at TJ > +125°C and auto-recovers upon cooling-prevents permanent damage during sustained overload
Fold-Back Current Limit	Reduces short-circuit current to 150–300mA when VOUT < 1.05V, limiting power dissipation during fault
Green Molding Compound	Halogen-free (Br/Sb-free) epoxy meets IPC-4101D/21 requirements for environmentally sensitive designs

Applications

Battery-Powered Wireless Sensor Node

USB-Powered Peripheral Interface

Use Scenario: Sub-1W BLE/Wi-Fi sensor node powered by CR2032 or single Li-ion cell with intermittent transmit bursts.

IC Role / Device Role / Timing Role: Primary 3.5V supply regulator for RF transceiver and microcontroller core domain.

Use Value: 50µA quiescent current extends shelf life; 400mV dropout enables >300mA peak current delivery even at end-of-discharge (3.0V input).

Use Scenario: USB 5V-powered docking station providing clean 3.5V rail to external FPGA I/O banks or ADC reference buffer.

IC Role / Device Role / Timing Role: Post-regulator filtering noise from USB switch-mode chargers before sensitive analog circuitry.

Use Value: 58dB PSRR at 100Hz attenuates USB charger ripple; ±2% output accuracy ensures ADC reference stability.

Optical Drive Power Management

Industrial Fieldbus Node Power

Use Scenario: CD/DVD-ROM sled motor driver board requiring isolated 3.5V logic supply alongside 12V motor rail.

IC Role / Device Role / Timing Role: Local LDO supplying servo controller IC and laser diode bias DAC.

Use Value: Good load regulation (30–40mV) maintains DAC reference integrity during motor commutation spikes.

Use Scenario: RS-485 fieldbus node operating in -40°C to +85°C industrial environment with wide-input 5–24V supply.

IC Role / Device Role / Timing Role: Secondary regulator generating 3.5V for isolated CAN transceiver and microcontroller I/O.

Use Value: Guaranteed operation to +125°C junction temperature and thermal shutdown prevent failure during 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
MCP1700T-3502E/TT (Microchip)	250mA rating, 175mV dropout @ 250mA, 1.6µA IQ - lower current, much lower IQ, higher dropout at 300mA	Suitable only for <250mA loads; insufficient for 300mA burst demands in wireless transceivers	Select if ultra-low IQ dominates over output current capability and input headroom is ample
TPS73035DBVR (TI)	200mA rating, 120mV dropout @ 200mA, 170µA IQ - lower current, lower dropout, higher IQ	Limited to 200mA continuous; may thermally throttle in compact enclosures under sustained load	Prefer where input voltage is tightly regulated near 3.6V and thermal budget allows smaller footprint

Compared with MCP1700T-3502E/TT and TPS73035DBVR, AP130-35WG-7 uniquely balances 300mA output, 400mV dropout, and 50µA IQ in SC59 - making it optimal for space-constrained, battery-operated systems needing full-rated current without sacrificing standby efficiency.

Availability

AP130-35WG-7 is available at Aetrix Electronics and suitable for battery-powered wireless sensors, USB peripherals, and optical drive subsystems requiring stable component supply with guaranteed long-term manufacturability.

Supply support for AP130-35WG-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 company 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, designed specifically for portable and battery-sensitive systems demanding low IQ, tight output tolerance, and robust fault protection in compact packages.

FAQ

What is the minimum output capacitor required for stability with AP130-35WG-7?

The datasheet specifies a minimum 10µF ceramic capacitor at the output terminal for guaranteed stability across all operating conditions. Using less than 10µF risks oscillation or degraded transient response, especially under heavy load steps. X5R or X7R dielectrics with ≤100mΩ ESR are recommended.

Can AP130-35WG-7 operate with a 2.8V input voltage?

No - the absolute minimum input voltage is 2.7V, but the device cannot regulate at 3.5V output with only 2.8V input due to its 400mV dropout requirement. A minimum of 3.9V input is needed to sustain 300mA output current at 3.5V. Below that, output voltage collapses proportionally.

Does AP130-35WG-7 require an input capacitor, and if so, what value?

Yes - a minimum 1µF ceramic capacitor is required between IN and GND, placed as close as possible to the device pins. This reduces high-frequency input impedance, prevents instability from source inductance, and improves PSRR. Larger values (e.g., 4.7–10µF) further enhance transient immunity from upstream switching supplies.

Is AP130-35WG-7 compatible with lead-free reflow soldering profiles?

Yes - AP130-35WG-7 is qualified for lead-free reflow per JEDEC J-STD-020, with a maximum peak temperature of 260°C. Its SC59 package uses matte tin (Sn) lead finish and green halogen-free molding compound, meeting RoHS Directive 2002/95/EC and IPC-4101D/21 standards.

AP130-35WG-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):: 3.5V

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

AP130-35WG-7 FAQ

1.How can I place an order for AP130-35WG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP130-35WG-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 AP130-35WG-7 reliable?

The price and inventory of AP130-35WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-35WG-7 is usually 5 days.

3.What payment methods are accepted for AP130-35WG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-35WG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP130-35WG-7?

AP130-35WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP130-35WG-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 AP130-35WG-7?

For technical support, including AP130-35WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-35WG-7 requirements.

6.How does Aetrix verify that AP130-35WG-7 is sourced from the original manufacturer or authorized distributors?

All AP130-35WG-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 AP130-35WG-7 meets industry standards.

7.What is the process for return or replacement of AP130-35WG-7?

All AP130-35WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-35WG-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 AP130-35WG-7 part is unused and in its original packaging.

Return procedure for AP130-35WG-7:

1.Submit a request within 90 days.

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

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