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

Diodes Incorporated AP130-15SAG-7

Name: AP130-15SAG-7
Brand: Diodes Incorporated
SKU: AP130-15SAG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP130-15SAG-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP130-15SAG-7.pdf

Description:: IC REG LINEAR 1.5V 300MA SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:1,257

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Product details

Overview

AP130-15SAG-7 from Diodes Incorporated is a 300mA fixed-output 1.5V low-dropout linear regulator in SOT23 package, featuring 400mV dropout at full load, ±2% output voltage 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 rail generation.

For engineers reviewing the AP130-15SAG-7 datasheet, AP130-15SAG-7 pinout, AP130-15SAG-7 application, or AP130-15SAG-7 equivalent, key selection criteria include dropout performance at 300mA, load regulation under 40mV, PSRR of 58dB at 100Hz, thermal resistance (θ_JA = 200°C/W), and compatibility with 1µF input / 10µF output ceramic capacitors.

Technical Context

The AP130-15SAG-7 employs a PMOS pass transistor architecture enabling zero gate-drive current and inherently low dropout. Its error amplifier uses a 1.08V internal bandgap reference to regulate output against line and load variations.

Protection circuitry includes fold-back current limiting (150–300mA short-circuit current) and thermal shutdown triggered at ~125°C junction temperature. Stability is ensured with ≥10µF output capacitance and ESR < 1Ω.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.5V ±2% - ensures precise biasing for 1.5V logic or analog subsystems without external feedback.
Max Output Current	300mA continuous - supports moderate-power microcontrollers, sensors, or RF front-ends in compact designs.
Dropout Voltage	400mV typ. at 300mA - enables operation down to 1.9V input, critical for single-cell Li-ion or alkaline battery systems.
Quiescent Current	50µA typ. at no load - minimizes standby power loss in always-on or battery-backed applications.
PSRR	58dB at 100Hz - suppresses ripple from noisy switching supplies feeding the LDO input.
Load Regulation	≤40mV over 1–300mA - maintains tight voltage control across dynamic current demands.
Thermal Resistance θ_JA	200°C/W (SOT23) - defines safe power dissipation limit (~150mW max at 85°C ambient) without heatsinking.

Pinout & Package

SOT23-3 package: small-outline transistor outline with gull-wing leads, 1.3mm × 2.9mm footprint, 1.0mm height, RoHS-compliant green molding compound.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN)	Input Power Supply	Accepts 2.7–5.5V DC; requires ≥1µF bypass capacitor close to pin for transient immunity.
2 (OUT)	Regulated Output	Delivers stable 1.5V; must connect ≥10µF low-ESR capacitor to GND for loop stability.
3 (GND)	Ground Reference	Common return path for input, output, and internal circuitry; low-impedance PCB trace required.

Key Features

Feature	Design Value
PMOS Pass Element	Zero gate drive current eliminates base/charge pump losses, improving light-load efficiency.
Fast Transient Response	Stabilizes within microseconds after load steps-critical for burst-mode digital loads.
Integrated Protection	Thermal shutdown + fold-back current limit prevent damage during overload or ambient rise.
Green Packaging	SOT23 variant uses halogen-free, RoHS-compliant molding compound (no Br/Sb).

Applications

Wireless Sensor Node

USB Peripheral

Use Scenario: Ultra-low-power Zigbee or BLE sensor node powered by coin cell or single Li-ion.

IC Role / Device Role / Timing Role: Primary 1.5V supply regulator for MCU core and RF transceiver.

Use Value: 50µA quiescent current extends battery life beyond 5 years in sleep-dominated operation.

Use Scenario: Self-powered USB audio adapter or HID device drawing from USB 5V bus.

IC Role / Device Role / Timing Role: Local 1.5V rail generator for DAC or op-amp stage.

Use Value: 400mV dropout allows clean 1.5V output even when USB voltage sags to 4.5V.

Industrial Control I/O Module

Portable Medical Monitor

Use Scenario: DIN-rail mounted PLC I/O module with isolated 3.3V/5V inputs and 1.5V analog front-end.

IC Role / Device Role / Timing Role: Post-regulator for precision ADC reference or op-amp biasing.

Use Value: ±2% output accuracy and ≤40mV load regulation ensure consistent measurement fidelity.

Use Scenario: Handheld pulse oximeter using AAA batteries and low-noise analog signal chain.

IC Role / Device Role / Timing Role: Clean 1.5V supply for photodiode amplifier and ADC driver.

Use Value: 58dB PSRR at 100Hz rejects switching noise from display backlight drivers.

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-1502E/TT	250mA max output, 170mV dropout at 250mA, 2.0µA quiescent current	Lower IQ suits multi-year battery life; lower current rating limits use with higher-power peripherals	Select when ultra-low IQ dominates over output current capability
TPS7A0515PDBVR	200mA max output, 175mV dropout at 200mA, 25µA IQ, integrated enable pin	Requires enable control for sequencing; smaller 1.5mm × 1.5mm X2SON package	Select when board space is constrained and system-level power sequencing is required

Compared with MCP1700T-1502E/TT and TPS7A0515PDBVR, the AP130-15SAG-7 delivers higher output current (300mA vs. ≤250mA) and wider input range (2.7–5.5V vs. ≤5.5V or ≤6V), making it preferable for applications needing robust load headroom without sacrificing dropout or quiescent performance.

Availability

AP130-15SAG-7 is available at Aetrix Electronics and suitable for wireless sensor nodes, USB peripherals, and industrial I/O modules requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for AP130-15SAG-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' general-purpose LDO portfolio, engineered for cost-sensitive, space-constrained applications where low dropout, low IQ, and robust protection are essential-particularly in battery-powered and peripheral devices.

FAQ

What is the minimum output capacitance required for stability with AP130-15SAG-7?

The AP130-15SAG-7 requires a minimum 10µF ceramic output capacitor with ESR ≤1Ω for guaranteed stability across all operating conditions. The datasheet specifies this value based on phase margin testing with typical 1µF input capacitance. Using lower capacitance may cause oscillation or poor transient response, especially under heavy load steps.

Can AP130-15SAG-7 be used with input voltages below 2.7V?

No-2.7V is the absolute minimum rated input voltage per the Recommended Operating Conditions table. Below this, regulation is not guaranteed: dropout behavior becomes unpredictable, output accuracy degrades beyond ±2%, and internal bandgap reference may cease functioning. Operation at 2.5V risks unregulated output or shutdown.

Does AP130-15SAG-7 support reverse polarity protection?

No-the AP130-15SAG-7 lacks built-in reverse-voltage protection. Applying reversed input voltage (e.g., IN < GND) exceeds Absolute Maximum Ratings and may permanently damage the PMOS pass transistor or internal circuitry. External series diode or MOSFET-based protection must be added if reverse polarity is possible in the system.

How does thermal shutdown behave during sustained overload?

When junction temperature reaches ~125°C, thermal shutdown disables the pass transistor, dropping output voltage to near zero. After cooling by ~20°C, the device auto-restarts. During repeated cycling, average output current is limited to ~150mA (fold-back region), preventing thermal runaway but causing intermittent operation-designers must size heatsinking or reduce load to avoid this mode.

AP130-15SAG-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):: 1.5V

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:: SOT-23-3

AP130-15SAG-7 FAQ

1.How can I place an order for AP130-15SAG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP130-15SAG-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 AP130-15SAG-7 reliable?

The price and inventory of AP130-15SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP130-15SAG-7 is usually 5 days.

3.What payment methods are accepted for AP130-15SAG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP130-15SAG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP130-15SAG-7?

AP130-15SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP130-15SAG-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 AP130-15SAG-7?

For technical support, including AP130-15SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP130-15SAG-7 requirements.

6.How does Aetrix verify that AP130-15SAG-7 is sourced from the original manufacturer or authorized distributors?

All AP130-15SAG-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 AP130-15SAG-7 meets industry standards.

7.What is the process for return or replacement of AP130-15SAG-7?

All AP130-15SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP130-15SAG-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 AP130-15SAG-7 part is unused and in its original packaging.

Return procedure for AP130-15SAG-7:

1.Submit a request within 90 days.

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

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