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WLAN/Wi-Fi access point

Products and reference designs
Block diagram

WLAN/Wi-Fi access point

Block diagram

Overview

Our integrated circuits and reference designs help you create wireless access points that enable high-speed wireless local area network (WLAN) connections for the newest and fastest Wi-Fi® standards while maintaining power efficiency. Browse the interactive diagram below to design wireless access points with our most advanced microcontroller, interface and power delivery technologies.

Design requirements

Modern WLAN/Wi-Fi access point designs often require:

  • A radio frequency (RF) transceiver with integrated microcontroller for 802.11 standard compliance.
  • Gigabit Ethernet link for high-speed network connections.
  • Efficient, low-standby Power over Ethernet (PoE) delivery.

Block diagram

Find products and reference designs for your system.

WLAN/Wi-Fi access point

RGMII/SMGII RGMII/SMGII 5V-12V 5V-12V PCIe or IQ PCIe or IQ PCIe or IQ PCIe or IQ UART UART USB USB UART UART 4x 5GHz ANTs 4x 5GHz ANTs 4x 2.4GHz ANTs 4x 2.4GHz ANTs I2C or GPIO I2C or GPIO I2C I2C Console Console 1G/2.5G/10G/100G 1G/2.5G/10G/100G 1 or 2 Ports 1 or 2 Ports Power over Ethernet PD Power over Ethernet PD PoE PD PoE PD PWM Controller PWM Controller Digital Isolator Digital Isolator REF REF FET FET Current Sense Current Sense I2C Isolator I2C Isolator Needed for dual port Needed for dual port Non Isolated POL Power Non Isolated POL Power DC/DC Buck Converter DC/DC Buck Converter LDO LDO DDR Memory Power Solutions DDR Memory Power Solutions Current Sensing Current Sensing ORing Control ORing Control Voltage Supervisor / Reset IC Voltage Supervisor / Reset IC DC/DC Boost Converter DC/DC Boost Converter FET FET REF REF Sensing Sensing Temp Sense Temp Sense Clocking Clocking Clock Generator Clock Generator Crystal Crystal Clock Buffer Clock Buffer WAN Port WAN Port ESD ESD Ethernet PHY Ethernet PHY Voltage Level Translation Voltage Level Translation Processing Processing I2C Switch I2C Switch Little Logic Little Logic I2C Level Shifters, Buffers, and Hubs I2C Level Shifters, Buffers, and Hubs Comparators Comparators I2C General Purpose I/O I2C General Purpose I/O OPA OPA CPU CPU Flash Flash DDR DDR Analog Switches/Muxes Analog Switches/Muxes 4x4 Radio Front End 4x4 Radio Front End 4x4 Dual Band Radio 4x4 Dual Band Radio WiFi Front End Module WiFi Front End Module Diplexer Diplexer 4x4 Dual Band Radio 4x4 Dual Band Radio WiFi Front End Module WiFi Front End Module Analog Switches Analog Switches ESD ESD RS-232 RS-232 RS-232 RS-232 USB USB USB ESD USB ESD USB Current Limit Switch USB Current Limit Switch USB Type-C and Power Delivery USB Type-C and Power Delivery LED Driver LED Driver LED Driver LED Driver Logic Logic Gigabit LAN Ports (with POE Passthrough) Gigabit LAN Ports (with POE Passthrough) Ethernet PHY Ethernet PHY ESD ESD PoE PSE PoE PSE Bluetooth Low Energy/Zigbee Bluetooth Low Energy/Zigbee Zigbee/Bluetooth Low Energy Zigbee/Bluetooth Low Energy

Non-isolated point-of-load power

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The non-isolated PoL power subsystem is responsible for powering all subsystems necessary for the proper operation of the wireless access point. This subsystem receives a 12V or 5V input from the PoE subsystem or a barrel jack and then down converts to 3.3V, 1.8V, 1.2V, or other voltages needed in the wireless access point.

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Power management (34)
AC/DC & DC/DC converters (integrated FET)
  • LM70880—High-density, 4.5V to 80V input, 8A low-EMI synchronous DC/DC step-down converter
    Data sheet: PDF | HTML
  • TPS548B23—4V to 16V, 20A Synchronous step-down converter
    Data sheet: PDF | HTML
  • TPS548B28—2.7-V to 16-V input, 20-A synchronous step-down converter with remote sense and hiccup current limit
    Data sheet: PDF | HTML
  • TPS62A03A—2.5V to 5.5V input, 3A high-efficiency synchronous buck converter with forced PWM in SOT-563 package
    Data sheet: PDF | HTML
  • TPS51386—4.5-V to 24-V input, 8-A synchronous buck converter 
    Data sheet: PDF | HTML
  • TPS562243—4.2V to 17V input voltage, 2A, 1.2MHz synchronous buck converter in SOT563 with Eco-mode
    Data sheet: PDF | HTML
Ideal diode/ORing controllers
  • LM74700D-Q1—Automotive, 3.2-V to 70-V, 80-µA reverse battery protection ideal diode controller
    Data sheet: PDF | HTML
  • LM7310—2.7-V to 23-V, 28-mΩ, 5.5-A load switch with integrated ideal diode & overvoltage protection
    Data sheet: PDF | HTML
  • TPS2412—0.8-V to 16.5-V 1.2A IQ 292-uA Igate source N+1 and OR-ing power rail controller
    Data sheet: PDF | HTML
  • LM5050-1—5-V to 75-V 400-uA IQ ORing FET controller
    Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators
  • TLV772—300mA high-PSRR low-IQ adjustable LDO
    Data sheet: PDF | HTML
  • TPS7A94—1-A, ultra-low noise, ultra-high PSRR, RF voltage regulator
    Data sheet: PDF | HTML
  • TLV755P—500mA high-PSRR low-IQ low-dropout voltage regulator with enable
    Data sheet: PDF | HTML
  • TLV773—300-mA high-PSRR low-IQ low-dropout regulator with enable
    Data sheet: PDF | HTML
  • TLV758P—500-mA, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with enable
    Data sheet: PDF | HTML
  • LP2985-N—150-mA, 16-V, low-dropout voltage regulator with enable
    Data sheet: PDF | HTML
Supervisor & reset ICs
  • TPS3435-Q1—Automotive, nano-quiescent-current precision timeout watchdog timer
    Data sheet: PDF | HTML
  • TPS35-Q1—Automotive nano-quiescent-current precision supervisor with timeout watchdog timer
    Data sheet: PDF | HTML
  • TPS3823—Active-low, push-pull, voltage supervisor (reset IC) with 1.6-s watchdog & manual reset
    Data sheet: PDF | HTML
  • TPS3430—Window watchdog timer with programmable reset delay
    Data sheet: PDF | HTML
  • TLV809E—Low-power voltage supervisor (reset IC) with active-low push-pull output
    Data sheet: PDF | HTML
  • TLV803E—Low-power voltage supervisor (reset IC) with active-low open-drain output
    Data sheet: PDF | HTML
MOSFETs
  • CSD19538Q2—100-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 59 mOhm
    Data sheet: PDF | HTML
  • CSD17579Q3A—30-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 14.2 mOhm
    Data sheet: PDF | HTML
  • CSD18540Q5B—60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.2 mOhm
    Data sheet: PDF | HTML
  • CSD17577Q3A—30-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 6.4 mOhm
    Data sheet: PDF | HTML
  • CSD19534Q5A—100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 15.1 mOhm
    Data sheet: PDF | HTML
  • CSD17483F4—30-V, N channel NexFET™ power MOSFET, single LGA 1 mm x 0.6 mm, 260 mOhm, gate ESD protection
    Data sheet: PDF | HTML
Shunt voltage references
  • TLA432—All-capacitor stable precision programmable reference with RKA pin layout
    Data sheet: PDF | HTML
  • TLV431B—0.5% accuracy, low-voltage, adjustable precision shunt regulator
    Data sheet: PDF | HTML
  • TLA431—All-capacitor stable precision programmable reference with KRA pin layout
    Data sheet: PDF | HTML
  • TLV431A—1% accuracy, low-voltage, adjustable precision shunt regulator
    Data sheet: PDF | HTML
  • LMV431A—1%, low-voltage (1.24-V) adjustable precision shunt regulator
    Data sheet: PDF | HTML
  • LM4040-N—100-ppm/°C precision micropower shunt voltage reference
    Data sheet: PDF | HTML
Amplifiers (6)
Digital power monitors
  • INA233—36V, 16-bit, ultra-precise i2c & pmbus output current/voltage/power/energy monitor w/alert
    Data sheet: PDF | HTML
  • INA237—85-V, 16-bit, I2C output current/voltage/power monitor with alert
    Data sheet: PDF | HTML
  • INA234—28-V, 12-bit, I²C output current/voltage/power monitor with alert in WCSP
    Data sheet: PDF | HTML
  • INA232—48-V, 16-bit high-precision I²C output digital power monitor with alert
    Data sheet: PDF | HTML
  • INA219—26-V 12-bit I2C output digital power monitor
    Data sheet: PDF | HTML
  • INA230—36-V, 16-bit, I²C output current, voltage and power monitor with alert
    Data sheet: PDF | HTML

    Technical documentation

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    Type Title Date
    Application note Programming Fun Lights With TI's TCA6507 30 Nov 2007
    Analog Design Journal System telemetry: What, why and how? 30 Apr 2014
    Application note SimpleLink WLAN Access Point (Rev. A) PDF | HTML 27 Apr 2020
    White paper Navigating your way through the RFID jungle 14 Mar 2014
    Technical article 3 tips for reducing wireless network interference in access point equipment PDF | HTML 13 Jun 2023
    Application brief Integrating the Current Sensing Signal Path (Rev. B) PDF | HTML 08 May 2022
    White paper Wireless connectivity for the Internet of Things (IoT) with MSP430 MCUs 08 Apr 2014
    Application note CC430 RF Examples (Rev. C) 07 Sep 2012
    Application brief Integrating the Current Sensing Resistor (Rev. D) PDF | HTML 07 Apr 2023
    Application note AN058 -- Antenna Selection Guide (Rev. B) 06 Oct 2010
    Technical article Delivering a smooth transition from AC to PoE power PDF | HTML 05 Sep 2023
    Application note Choosing the Correct I2C Device for New Designs PDF | HTML 03 Jul 2018

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