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

Diodes Incorporated AP7313-15SAG-7

Name: AP7313-15SAG-7
Brand: Diodes Incorporated
SKU: AP7313-15SAG-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7313-15SAG-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP7313-15SAG-7.pdf

Description:: IC REG LINEAR 1.5V 150MA SOT23-3

Quantity:: RFQ Add To RFQ list

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Inventory:30,923

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Product details

Overview

AP7313-15SAG-7 from Diodes Incorporated is a 150mA fixed-output (1.5V) low-dropout linear regulator in SOT23 package, featuring 65µA quiescent current, 150mV typical dropout at full load, and 65dB PSRR at 100Hz - designed for battery-powered portable devices requiring stable, ultra-low-power voltage regulation.

For engineers reviewing the AP7313-15SAG-7 datasheet, AP7313-15SAG-7 pinout, AP7313-15SAG-7 application, or AP7313-15SAG-7 equivalent, key selection criteria include low-I_Q operation across 2–6V input range, fast 80µs startup, stability with 1µF ceramic output capacitor, and integrated thermal shutdown, current limit, and short-circuit protection.

Technical Context

The AP7313-15SAG-7 integrates a PMOS pass element, bandgap reference, error amplifier, and protection circuitry to deliver precise 1.5V output with ±2% accuracy over –40°C to +85°C ambient. Its low dropout (150mV @ 150mA) enables operation near battery end-of-life in single-cell Li-ion or alkaline systems.

Designed for transient-sensitive loads, it achieves fast line/load response without external compensation - verified by <100mV undershoot/overshoot during 1mA↔150mA load steps and <1V input step transitions - enabled by internal compensation optimized for 1µF–4.7µF X7R/X5R ceramic output capacitors.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.5V ±2% over –40°C to +85°C - ensures stable core voltage for low-voltage microcontrollers and sensors.
Max Output Current	150mA continuous - supports power rails for Bluetooth SoCs, PMIC sub-regulators, and sensor hubs.
Quiescent Current	65µA typical at 150mA load - extends battery life in always-on wearable and IoT edge nodes.
Dropout Voltage	150mV typical at 150mA - allows regulation down to 1.65V input, compatible with discharged 2-cell alkaline or single LiFePO₄.
PSRR	65dB at 100Hz - suppresses ripple from noisy DC-DC converters or shared power rails in mixed-signal systems.
Start-up Time	80µs - enables rapid wake-from-standby in GSM/TDMA baseband circuits with burst-mode operation.
Protection Features	Thermal shutdown (140°C), current limit (~300mA), and short-circuit clamp (~50mA) - eliminates need for external fault management circuitry.

Pinout & Package

SOT23-3 package (JEDEC TO-236AB), 1.3mm × 2.9mm × 1.0mm body, lead-free/RoHS-compliant, green molding compound.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN)	Input voltage supply	Accepts 2V–6V input; requires ≥1µF ceramic bypass to GND close to pin for noise immunity and stability.
2 (OUT)	Regulated output	Delivers fixed 1.5V; stable with 1µF–4.7µF X7R/X5R ceramic capacitor placed adjacent to OUT/GND pins.
3 (GND)	Ground reference	Common return path for IN and OUT; must connect to low-impedance ground plane to maintain PSRR and transient response.

Key Features

Feature	Design Value
Ultra-low quiescent current	65µA across full 2V–6V input and 0–150mA load range - minimizes standby power loss in battery-gated systems.
Fast transient response	Controlled undershoot/overshoot during 1mA↔150mA load steps - sustains logic-level integrity for high-speed digital loads like DSPs and RF transceivers.
No minimum load requirement	Stable regulation at 0mA output - simplifies design for intermittent-load applications such as sensor polling or wake-on-event circuits.
Low-ESR capacitor compatibility	Stable with 10mΩ–200mΩ ESR ceramic capacitors - eliminates need for costly tantalum or polymer alternatives.
Integrated fault protection	Auto-recovering thermal shutdown (140°C trip, 125°C release) plus current limit and short-circuit clamping - reduces BOM count and board space.

Applications

Portable Medical Sensors

GSM Baseband Power

Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio and analog front-end.

IC Role / Device Role / Timing Role: Primary 1.5V rail for ultra-low-power MCU and precision ADC.

Use Value: 65µA I_Q extends coin-cell lifetime beyond 12 months; 80µs startup enables instant sensor activation on button press.

Use Scenario: TDMA-based GSM handset baseband IC requiring burst-mode 1.5V supply.

IC Role / Device Role / Timing Role: Fast-transient LDO for VDD_IO rail during transmit/receive duty cycles.

Use Value: <100mV load transient deviation prevents bit errors; 65dB PSRR rejects switching noise from adjacent DC-DC converters.

Industrial Wireless Node

USB Peripheral Power

Use Scenario: LoRaWAN end-node powered by 2xAA batteries with sub-GHz transceiver and ARM Cortex-M0+.

IC Role / Device Role / Timing Role: Main 1.5V supply for microcontroller and RF IC during periodic wake-up and transmission.

Use Value: 150mV dropout enables >500 cycles of 150mA transmit bursts even as battery decays to 1.65V; thermal shutdown prevents overheating in sealed enclosures.

Use Scenario: USB-powered barcode scanner with integrated laser driver and CMOS imager.

IC Role / Device Role / Timing Role: Clean 1.5V bias for image sensor analog block and laser diode control logic.

Use Value: Stability with 1µF ceramic capacitor reduces PCB area vs. traditional LDOs; ±2% output tolerance meets USB-IF analog supply specs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-I_Q LDO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700-1502E/TO	Same 1.5V output, 250mA rating, but higher 1.8µA I_Q; 600mV dropout at 250mA; SOT23-3 pinout identical.	Lacks short-circuit clamp (only current limit); no thermal hysteresis spec; lower PSRR (55dB @ 100Hz).	Prefer when ultra-low I_Q dominates over transient performance and fault robustness.
TPS70615DBVR	1.5V output, 150mA, 1.3µA I_Q, but 200mV dropout at 150mA; requires 2.2µF min C_OUT; same SOT23-3 footprint.	Slower 50µs startup; no short-circuit current clamp; PSRR 60dB @ 100Hz; thermal shutdown threshold unspecified.	Choose when nanowatt standby is critical and load transients are infrequent or bounded.

Compared with MCP1700-1502E/TO and TPS70615DBVR, AP7313-15SAG-7 delivers superior transient response and comprehensive fault protection at moderate I_Q, making it optimal for GSM, wearables, and industrial sensors where reliability under dynamic load and fault conditions is non-negotiable.

Availability

AP7313-15SAG-7 is available at Aetrix Electronics and suitable for portable medical sensors, GSM baseband power, and industrial wireless nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AP7313-15SAG-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 AP7313 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for battery-constrained portable electronics where extended runtime, fast wake-up, and robust fault handling are essential design requirements.

FAQ

What is the minimum input voltage required for AP7313-15SAG-7 to regulate 1.5V output at 150mA?

The AP7313-15SAG-7 requires a minimum input voltage of 1.65V to maintain regulation at 150mA load, based on its typical 150mV dropout voltage. At 25°C ambient, it remains functional down to 2.0V input per recommended operating conditions - ensuring compatibility with partially discharged alkaline or LiFePO₄ cells.

Can AP7313-15SAG-7 operate without an output capacitor?

No - an output capacitor is mandatory for stability and transient response. The device is specified to be stable only with 1µF to 4.7µF ceramic capacitors (X7R/X5R dielectric, 10mΩ–200mΩ ESR). Operation without C_OUT risks oscillation, excessive overshoot, and potential damage during load transients.

Does AP7313-15SAG-7 require a minimum load current to maintain regulation?

No - the AP7313-15SAG-7 is designed for no-load stability. It maintains regulated 1.5V output with zero load current, verified across –40°C to +85°C ambient and 2V–6V input range. This eliminates the need for bleeder resistors in low-duty-cycle applications like sensor wake-up circuits.

How does the short-circuit protection behave under sustained fault conditions?

Under sustained short-circuit (OUT to GND), the AP7313-15SAG-7 limits output current to ~50mA and enters thermal shutdown if junction temperature reaches ~140°C. Upon cooling to ~125°C, it automatically resumes regulation - cycling as needed to prevent permanent damage while maintaining safe surface temperatures in enclosed assemblies.

AP7313-15SAG-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):: 6V

Voltage - Output (Min/Fixed):: 1.5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: -

Current - Output:: 150mA

Current - Quiescent (Iq):: 75 µA

Current - Supply (Max):: 85 µA

PSRR:: 65dB (100Hz)

Control Features:: -

Protection Features:: Over Current, Over Temperature, Short Circuit

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

AP7313-15SAG-7 FAQ

1.How can I place an order for AP7313-15SAG-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7313-15SAG-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 AP7313-15SAG-7 reliable?

The price and inventory of AP7313-15SAG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7313-15SAG-7 is usually 5 days.

3.What payment methods are accepted for AP7313-15SAG-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7313-15SAG-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7313-15SAG-7?

AP7313-15SAG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7313-15SAG-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 AP7313-15SAG-7?

For technical support, including AP7313-15SAG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7313-15SAG-7 requirements.

6.How does Aetrix verify that AP7313-15SAG-7 is sourced from the original manufacturer or authorized distributors?

All AP7313-15SAG-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 AP7313-15SAG-7 meets industry standards.

7.What is the process for return or replacement of AP7313-15SAG-7?

All AP7313-15SAG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7313-15SAG-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 AP7313-15SAG-7 part is unused and in its original packaging.

Return procedure for AP7313-15SAG-7:

1.Submit a request within 90 days.

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

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