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

Diodes Incorporated AP7315-26SA-7

Name: AP7315-26SA-7
Brand: Diodes Incorporated
SKU: AP7315-26SA-7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP7315-26SA-7

Manufacturer:: Diodes Incorporated

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

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

Datasheet:: AP7315-26SA-7.pdf

Description:: IC REG LINEAR 2.6V 150MA SOT23

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AP7315-26SA-7 from Diodes Incorporated is a 2.6V 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. It features CMOS-based architecture, enable control, and thermal-enhanced SOT23-3 packaging-designed for RF supply rails in space-constrained portable electronics.

For engineers reviewing the AP7315-26SA-7 datasheet, AP7315-26SA-7 pinout, AP7315-26SA-7 application, or AP7315-26SA-7 equivalent, key selection criteria include dropout voltage at 150mA (max 0.29V), EN logic thresholds (V_IL ≤ 0.5V, V_IH ≥ 1.3V), thermal performance in SOT23-3, and compatibility with 0.47µF ceramic input/output capacitors.

Technical Context

The AP7315-26SA-7 implements a CMOS-based LDO architecture with integrated voltage reference, error amplifier, current-limit circuitry, and active enable input. Its internal resistor network fixes the output at 2.6V, eliminating external feedback components.

It delivers stable regulation across 1.7V–5.25V input range with load transient response optimized for handheld communication equipment. Shutdown mode draws only 0.01µA, and short-circuit protection limits output current to ~55mA during V_OUT-to-GND faults.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.6V ±1% at +25°C; ensures precise biasing for 2.5V–2.7V logic/RF ICs without trimming.
Max Output Current	150mA guaranteed; supports moderate-power RF transceivers, camera modules, and baseband processors.
Dropout Voltage	≤0.29V at 150mA (2.6V output); enables operation from 2.89V input, critical for single-cell Li-ion or Li-poly systems.
PSRR	75dB at 1kHz; suppresses switching noise from DC-DC converters feeding the LDO input rail.
Output Noise	60µV_rms (10Hz–100kHz); minimizes phase noise in RF local oscillators and ADC reference paths.
Quiescent Current	35µA typical at light load; extends battery life in always-on sensor or standby circuits.
Enable Thresholds	V_{EN_H} ≥ 1.3V, V_{EN_L} ≤ 0.5V; compatible with 1.8V/3.3V GPIO without level-shifting.

Pinout & Package

AP7315-26SA-7 uses the SOT23-3 package (JEDEC TO-236AB), with 1.3mm × 2.9mm footprint and 1.0mm height. Thermal pad is absent; PCB copper pour under the exposed drain tab (pin 2) is recommended for enhanced heat dissipation.

Pin/Terminal	Circuit Role	Design Meaning
VIN (Pin 1)	Input power supply	Accepts 1.7V–5.25V; requires 0.47µF ceramic capacitor placed adjacent to minimize input impedance.
GND (Pin 2)	Ground reference	Primary return path for load current and regulator core; must connect directly to low-impedance ground plane.
VOUT (Pin 3)	Regulated output	Delivers stable 2.6V ±1%; output capacitor (0.47µF ceramic) must be placed within 2mm of this pin.

Key Features

Feature	Design Value
High PSRR	75dB at 1kHz enables clean power delivery in noisy DC-DC-fed systems without additional filtering.
Low-noise regulation	60µV_rms noise floor preserves signal integrity in RF front-ends and precision analog circuits.
Ultra-low quiescent current	35µA typical allows >1-year battery life in coin-cell-powered IoT sensors with periodic wake-up.
Enable-controlled shutdown	0.01µA standby current when EN = 0V; supports system-level power sequencing and deep-sleep modes.
Thermal-enhanced SOT23	SOT23-3 package with optimized thermal resistance (θ_JA ≈ 250°C/W on 2-layer JEDEC board) sustains 150mA at +85°C ambient.

Applications

Smartphone RF Power Supply

Portable Camera Module

Use Scenario: Powers RF transceiver ICs (e.g., LTE/Wi-Fi front-end modules) requiring ultra-low noise and fast load transient response.

IC Role / Device Role / Timing Role: Primary 2.6V bias rail for PA driver stages and LNA bias networks.

Use Value: 75dB PSRR rejects switching noise from PMIC buck converters; 60µV_rms noise prevents EVM degradation in 256-QAM transmission.

Use Scenario: Supplies image sensor analog core and ISP I/O banks in compact mobile cameras.

IC Role / Device Role / Timing Role: Low-noise V_ANA source for CIS pixel array and column ADC reference.

Use Value: ±1% output accuracy maintains consistent sensor gain calibration; 0.29V dropout enables direct use of 3.0V battery rail.

Wireless Audio Adapter

Bluetooth LE Sensor Node

Use Scenario: Provides clean 2.6V supply to Bluetooth audio codec and DAC in USB-C dongles.

IC Role / Device Role / Timing Role: Post-regulator for noise-sensitive audio signal chain after main DC-DC stage.

Use Value: 60µV_rms noise eliminates audible hiss; 35µA IQ extends playback time from 100mAh battery by >8%.

Use Scenario: Powers BLE SoC (e.g., nRF52840) radio and sensor interface in battery-operated industrial monitors.

IC Role / Device Role / Timing Role: Always-on LDO for RTC, wake-up comparator, and BLE advertising burst supply.

Use Value: 0.01µA shutdown current reduces annual self-discharge to <0.5% of 200mAh CR2032 cell capacity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700-2602E/TO	2.6V fixed, 250mA, 6µA IQ, but only 60dB PSRR at 1kHz and 120µV_rms noise.	Lacks RF-grade noise suppression; suitable for digital-only loads, not RF/analog mixed-signal.	Choose when ultra-low IQ dominates over noise/PSRR requirements.
Torex XC6219B262MR-G	2.6V fixed, 150mA, 70dB PSRR at 1kHz, 45µV_rms noise, but requires 1µF output capacitance.	Superior noise performance but incompatible with 0.47µF minimum C_OUT constraint in legacy layouts.	Prefer when lower noise is critical and board redesign for larger C_OUT is feasible.

Compared with MCP1700-2602E/TO, AP7315-26SA-7 provides 15dB higher PSRR and half the output noise-critical for RF signal chains-while matching current capability. Against XC6219B262MR-G, it trades 15µV_rms noise reduction for proven stability with 0.47µF ceramics, easing design reuse.

Availability

AP7315-26SA-7 is available at Aetrix Electronics and suitable for smartphone RF supply, portable camera modules, and wireless audio adapters requiring stable component supply with full traceability and lifecycle management.

Supply support for AP7315-26SA-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 consumer, industrial, and automotive markets.

The AP7315 series belongs to Diodes' high-PSRR, low-noise LDO product line, engineered specifically for noise-sensitive RF and imaging subsystems in battery-powered portable electronics.

FAQ

What is the maximum input voltage for AP7315-26SA-7?

The absolute maximum input voltage is 6.0V, but the recommended operating range is 1.7V to 5.25V. Operation above 5.25V risks permanent damage per Absolute Maximum Ratings. For reliable 2.6V output, VIN must exceed 2.89V (2.6V + max dropout of 0.29V) under full 150mA load.

Does AP7315-26SA-7 include output discharge functionality?

No. AP7315-26SA-7 is the non-discharge variant (as indicated by absence of "D" in part number). When disabled via EN pin, VOUT remains floating and retains charge until discharged by external load or leakage. For active discharge, select AP7315D-26SA-7, which integrates a 30Ω NMOS discharge path.

Can AP7315-26SA-7 operate with ceramic capacitors smaller than 0.47µF?

No. The datasheet specifies 0.47µF as the minimum stable ceramic output capacitance. Using smaller values (e.g., 0.22µF) risks instability and oscillation due to insufficient phase margin, especially under dynamic load conditions. Input capacitor must also be ≥0.47µF ceramic.

How does thermal performance compare between SOT23-3 and X2-DFN1010-4 packages?

The X2-DFN1010-4 package offers significantly better thermal resistance (θ_JA ≈ 180°C/W vs. ~250°C/W for SOT23-3 on identical JEDEC boards), enabling higher continuous current at elevated ambient temperatures. However, AP7315-26SA-7's SOT23-3 variant remains rated for full 150mA operation up to +85°C ambient when using adequate PCB copper area for heat spreading.

AP7315-26SA-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):: 2.6V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.32V @ 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

AP7315-26SA-7 FAQ

1.How can I place an order for AP7315-26SA-7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP7315-26SA-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 AP7315-26SA-7 reliable?

The price and inventory of AP7315-26SA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7315-26SA-7 is usually 5 days.

3.What payment methods are accepted for AP7315-26SA-7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7315-26SA-7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP7315-26SA-7?

AP7315-26SA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP7315-26SA-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 AP7315-26SA-7?

For technical support, including AP7315-26SA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7315-26SA-7 requirements.

6.How does Aetrix verify that AP7315-26SA-7 is sourced from the original manufacturer or authorized distributors?

All AP7315-26SA-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 AP7315-26SA-7 meets industry standards.

7.What is the process for return or replacement of AP7315-26SA-7?

All AP7315-26SA-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7315-26SA-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 AP7315-26SA-7 part is unused and in its original packaging.

Return procedure for AP7315-26SA-7:

1.Submit a request within 90 days.

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

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