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

Diodes Incorporated AP7315-30SA-7

Name: AP7315-30SA-7
Brand: Diodes Incorporated
SKU: AP7315-30SA-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7315-30SA-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP7315-30SA-7.pdf

Description:: IC REG LINEAR 3V 150MA SOT23

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7315-30SA-7 from Diodes Incorporated is a 3.0V fixed-output, 150mA low-dropout linear regulator with ±1% output voltage accuracy, 75dB PSRR at 1kHz, 60µV_rms output noise (10Hz–100kHz), and 35µA quiescent current - designed for RF supply rails in space-constrained portable electronics.

For engineers reviewing the AP7315-30SA-7 datasheet, AP7315-30SA-7 pinout, AP7315-30SA-7 application, or AP7315-30SA-7 equivalent, key selection criteria include dropout voltage (210mV @ 150mA for 3.0V output), enable-controlled shutdown (EN pin threshold: 0–0.5V low, 1.3–5.25V high), thermal performance in SOT23 package, and compatibility with 0.47µF ceramic input/output capacitors.

Technical Context

The AP7315-30SA-7 integrates a CMOS-based error amplifier, precision voltage reference, current-limit circuit, and active-enable logic to regulate output from 1.7V to 5.25V input while maintaining tight DC accuracy and dynamic stability. Its non-discharge architecture retains output voltage after shutdown unless externally pulled down.

It achieves high PSRR via internal compensation and low-noise biasing, with ripple rejection specified across 100Hz–1MHz and load transient response optimized for 1mA–150mA step changes. Dropout behavior is temperature- and load-dependent, ranging from 210mV to 290mV at 150mA over –40°C to +85°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 3.0V ±1% at 25°C; ensures stable bias for 3.0V logic or RF ICs without external feedback.
Max Output Current	150mA guaranteed; supports moderate-power RF modules, camera sensors, or baseband processors.
Dropout Voltage	210mV typical @ 150mA (3.0V VOUT); enables operation from 3.21V input, critical for single-cell Li-ion or boosted rail applications.
PSRR	75dB @ 1kHz; suppresses switching noise from adjacent DC/DC converters feeding shared input rails.
Output Noise	60µV_rms (10Hz–100kHz); minimizes phase noise impact on VCOs, LNAs, and ADC references.
Quiescent Current	35µA typical @ no load; extends battery life in always-on sensor or standby communication circuits.
Enable Threshold	V_IL ≤ 0.5V, V_IH ≥ 1.3V; compatible with 1.8V/3.3V GPIO without level-shifting.

Pinout & Package

AP7315-30SA-7 uses the SOT23-3 (SA) package: ultra-compact 2.9mm × 1.3mm × 1.0mm footprint with gull-wing leads, optimized for high-density PCB layouts in handheld devices.

Pin/Terminal	Circuit Role	Design Meaning
VIN (Pin 3)	Input power supply	Accepts 1.7V–5.25V; requires local 0.47µF ceramic decoupling placed adjacent to pin to suppress input transients.
GND (Pin 1)	Ground reference	Low-impedance return path for input/output currents; must connect directly to solid ground plane to minimize noise coupling.
VOUT (Pin 2)	Regulated output	Delivers 3.0V ±1%; output capacitor (0.47µF ceramic) must be placed within 2mm of this pin and GND for stability.
EN (Not present)	Enable control	Not implemented in SA variant; regulator operates continuously - EN functionality is only available in SOT25 (W5) and DFN (FS4) packages.

Key Features

Feature	Design Value
High PSRR	75dB @ 1kHz ensures clean power delivery to noise-sensitive RF blocks despite noisy system rails.
Ultra-low noise	60µV_rms output noise avoids degrading SNR in analog front-ends and clock distribution paths.
Tight output accuracy	±1% tolerance over temperature and line/load conditions guarantees reliable operation of 3.0V I/O interfaces.
Low quiescent current	35µA idle draw enables multi-week battery life in IoT edge nodes with periodic wake-up cycles.
Small-footprint packaging	SOT23-3 (SA) reduces board area by >50% vs. SOT25, enabling thinner smartphone bezels and compact wearables.

Applications

RF Power Amplifier Bias

Camera Sensor Core Supply

Use Scenario: Providing stable 3.0V bias to GaAs pHEMT power amplifiers in 4G/5G mobile front-end modules.

IC Role / Device Role / Timing Role: Low-noise LDO delivering clean, ripple-free V_CC to PA drain terminals during transmit bursts.

Use Value: Prevents AM-to-PM distortion and EVM degradation caused by supply modulation - verified at 150mA pulsed load with <1% VOUT droop.

Use Scenario: Powering image signal processor (ISP) core logic and analog pixel arrays in smartphone rear cameras.

IC Role / Device Role / Timing Role: Primary 3.0V domain regulator supplying digital and mixed-signal blocks with fast load-step response.

Use Value: Maintains <±10mV regulation during 0→150mA transitions (t_r/t_f = 0.5µs), eliminating frame corruption or auto-focus latency.

Wireless Adapter SoC Core

Portable Media Player Audio Codec

Use Scenario: Supplying 3.0V core voltage to Wi-Fi/BT combo chips in USB dongles and embedded modules.

IC Role / Device Role / Timing Role: Main system LDO supporting burst-mode CPU and radio activity with minimal self-heating.

Use Value: Delivers 150mA at 210mV dropout while staying within 400mW PD limit - validated on JEDEC High-K board at 85°C ambient.

Use Scenario: Generating low-noise 3.0V supply for stereo audio DACs and headphone amplifiers in MP3 players.

IC Role / Device Role / Timing Role: Post-regulator cleaning up switched-mode converter output before analog signal chain.

Use Value: 60µV_rms noise contributes <–105dBu residual noise floor, preserving >95dB THD+N performance in 32Ω loads.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700-3002E/TO	300mA rated, 6µA IQ, but only 60dB PSRR @ 1kHz and 30µV_rms noise; TO-92 package (larger than SOT23).	Better for ultra-low-power always-on monitoring; insufficient PSRR/noise performance for RF or high-fidelity audio.	Select when max current >150mA is required and RF noise immunity is secondary.
Torex XC6206P302MR-G	150mA, ±2% accuracy, 50dB PSRR @ 1kHz, 40µV_rms noise; SOT23-3 pinout identical but EN pin omitted (like AP7315-30SA-7).	Lower accuracy and PSRR limit use in precision RF biasing; acceptable for general-purpose 3.0V logic rails.	Choose for cost-sensitive designs where ±2% VOUT tolerance and reduced noise rejection are acceptable.

Compared with MCP1700-3002E/TO and XC6206P302MR-G, AP7315-30SA-7 uniquely balances 150mA capability, ±1% accuracy, 75dB PSRR, and 60µV_rms noise in the smallest SOT23-3 form factor - making it optimal for RF and imaging subsystems where both precision and spectral purity are mandatory.

Availability

AP7315-30SA-7 is available at Aetrix Electronics and suitable for RF power amplifier bias, camera sensor core supply, and wireless adapter SoC core applications requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for AP7315-30SA-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 ICs for power management, signal integrity, and connectivity applications.

The AP7315 series belongs to Diodes' high-performance LDO portfolio, engineered specifically for noise-critical portable electronics - emphasizing PSRR, output accuracy, and ultra-small packaging for next-generation smartphones, tablets, and wireless infrastructure.

FAQ

Does AP7315-30SA-7 include an enable (EN) pin?

No. The AP7315-30SA-7 uses the SOT23-3 (SA) package, which omits the EN pin. It operates continuously when powered. Enable functionality is only available in SOT25 (W5) and X2-DFN1010-4 (FS4) variants, as confirmed in the Pin Assignments section of DS38352 Rev. 2-2.

What is the minimum input voltage required for 3.0V output at full 150mA load?

The minimum input voltage is 3.21V, based on the typical dropout voltage of 210mV at 150mA for the 3.0V version (per Electrical Characteristics table, "Dropout Voltage" row for VOUT = 2.8V–3.3V). This ensures VOUT remains within ±1% regulation under worst-case thermal and process conditions.

Can AP7315-30SA-7 be used with ceramic output capacitors smaller than 0.47µF?

No. The datasheet specifies 0.47µF ceramic as the minimum recommended COUT for stability across all operating conditions. Using smaller values risks oscillation or degraded transient response, as confirmed in the "Output Capacitor" section of DS38352 Rev. 2-2, page 11.

Is AP7315-30SA-7 qualified for automotive applications?

No. AP7315-30SA-7 is not AEC-Q100 qualified. The datasheet explicitly states that automotive-grade versions require specific change control, PPAP capability, and IATF 16949 manufacturing - and directs users to contact Diodes directly for such parts. This variant is intended for commercial portable electronics.

AP7315-30SA-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):: 5.25V

Voltage - Output (Min/Fixed):: 3V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.29V @ 150mA

Current - Output:: 150mA

Current - Quiescent (Iq):: 60 µA

Current - Supply (Max):: 100 µA

PSRR:: 75dB (1kHz)

Control Features:: -

Protection Features:: Over Current

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

AP7315-30SA-7 FAQ

1.How can I place an order for AP7315-30SA-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7315-30SA-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 AP7315-30SA-7 reliable?

The price and inventory of AP7315-30SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-30SA-7 is usually 5 days.

3.What payment methods are accepted for AP7315-30SA-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-30SA-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7315-30SA-7?

AP7315-30SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7315-30SA-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 AP7315-30SA-7?

For technical support, including AP7315-30SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-30SA-7 requirements.

6.How does Aetrix verify that AP7315-30SA-7 is sourced from the original manufacturer or authorized distributors?

All AP7315-30SA-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 AP7315-30SA-7 meets industry standards.

7.What is the process for return or replacement of AP7315-30SA-7?

All AP7315-30SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-30SA-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 AP7315-30SA-7 part is unused and in its original packaging.

Return procedure for AP7315-30SA-7:

1.Submit a request within 90 days.

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

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