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Power Circuits / Switching Regulator or Controllers / LM5021
LM5021 by:

Part Details for LM5021 by Texas Instruments

Results Overview of LM5021 by Texas Instruments

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LM5021 Information

LM5021 by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

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Part Details for LM5021

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Resources and Additional Insights for LM5021

Reference Designs related to LM5021

  • PMP8781 Primary-Side Regulated Flyback with 85-265VAC Input, (16.5V @ 1A)
    The PMP8781 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 16.5V/1A output from a univeral AC input. The valley switching of the UCC28700 allows this low-cost design to achieve a maximum load efficiency near 85%; no load losses are less than 50mW.
  • 37-57Vdc Input: 5V/4A Output Cost Optimized Flyback Converter Reference Design
    The LM5021 provides a cost effective solution for controlling an isolated flyback converter.  Diode rectification is used to keep cost low while maintaining good efficiency.  This converter is ideal for any cost sensitive telecom or PoE application.
  • 50/100-W Flyback reference design for audio applications
    This reference design implements a dual-output flyback using the cost effective LM5021 AC-DC Current-Mode PWM Controller. Universal line input is converted to both 24-V and 6-V outputs. The TLV1117 Fixed LDO Voltage Regulator converts the 6-V output to 3.3 V and can handle 0.2 A of current. The supply is designed for sustained operation at 50 W and is rated for peaks up to 100 W: which is ideal for the power requirements of audio signals.
  • PMP10130 汽车类低电压升压级实现 4V-9V 输入至 9V/3.3A 输出转换参考设计
    This small boost converter is meant to increase the output voltage to 9V during cranking phase. Vin = Vout - Vf in nominal conditions. During cranking, the input voltage can reach vaules as low as 4V. Extensive testing with a source generator has been performed.
  • TIPD104 三个十倍程电流感应解决方案
  • Universal Input to 3.3V: 12V: 36V: 200W Continuous PSU for Class-D Amplifier Reference Design
    This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on secondary side. A hardware switch + remote input let the converter enter in stand-by mode: in this status the 36V output is disabled and 12V: 3.3V are
  • 24V/36W Flyback Reference Design
    The PMP20809 reference design is an isolated DCM flyback design that takes a universal line input 85VAC to 265VAC: and produces a 24V ouput capable of 36W loading. The reference design uses the LM5021 controller to enable a high switching frequency and minimize transformer size. It achieves 90% efficiency at high and low line: and measures 1.5in x 3.6in on a 2 layer board.
  • PMP9476 15W 汽车起停电源
    PMP9476 is non-sync buck converter plus a non-sync boost controller accepts an input voltage of 3.5V to 40V, and outputs 5V, capable of providing 3A of current to the load.
  • 75/150-W Flyback reference design for audio applications
    This flyback reference design uses the cost effective LM5021 AC-DC Current-Mode PWM Controller. Universal line input is converted to a 28-V output. The supply is designed for sustained operation at 75-W and is rated for peaks up to 150-W. This range is ideal for the power requirements of audio signals. It is also tested for conductive EMI compliance.
  • TIDA-00379 待定 (tbd)
    The 110-VAC to 5-VDC @ 30-mA Non-Isolated Power Supply TI Design uses a low-power, low-cost, off-line buck converter and a low-noise, low-dropout voltage regulator to generate a non-isolated 5V/30mA output directly from a 110-VAC line input with under 10-mV outpur ripple across no-load and full-l
  • 100-VAC to 130-VAC input: 5-Vout: 6-A CCM flyback reference design
    This isolated continuous conduction mode (CCM) flyback reference design outputs 5 V at 6 A. The input is US line only (100 VAC-130 VAC).
  • PMP4721 具有 VID 的 TI DSP 核心电源
    best in class core supply for TI Faraday DSP
  • Universal AC Input: 10.5V/1.8A DC Output: Isolated Synchronous Flyback Converter Reference Design
    The PMP10164 reference design supplies 10.5V@1.8A from universal AC mains; the isolated Flyback topology is the most used for low power range due to single magnetic component. Since the load is a power line communication chip: a fixed frequency modulation has been chosen. The controller LM5021 performs also pulse skip mode thus improving efficiency at light load. A synchronous rectification controller UCC24630 has been employed to increase the efficiency and the thermal performance.
  • PMP5052 用于电信的有源钳位正向 (3.3V@30A)
  • High-line 185V to 265V AC input; 12 V @ 2A output Isolated Flyback AC to DC Converter
    This power reference design uses the LM5021 AC-DC Current Mode PWM controller. The switching frequency is programmed at 130KHz in an isolated flyback topology with minimal external components and small form factor size. The design is optimized for high-line input and 12V / 2A output. High Efficiency is achieved over load range thanks to the skip cycle mode and ultra low start-up current of the LM5021 controller.
  • 700V-860V input to 16.5V@0.5A output
    Circuit is a non isolated flyback converter. Vin is 700V to 800V max: converting to 16.5V out at a maximum current of 500mA. The design utilizes an external Error amplifier using an LMC7101 for feedback control. The circuit also uses U102 and Q101(and resistors etc etc…) as an external UVLO circuit.LM5021 features include an ultra-low (25 µA) start-up current: which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications.
  • PMP8913 工作频率为 550KHz 的 100V@0.28A 升压转换器
    This high frequency discontinuous mode boost converter operates from 20V - 30V input and achieves 90% full load efficiency. Applications include transmitters operating in the AM radio band.
  • TIDM-SMBUS 采用低功耗微控制器的 SMBus 设计
    This design utilizes existing Launchpad evaluation kits and BoosterPack plug-in modules to demonstrate the implementation of a SMBus-based system using Texas Instrument’s MSP430 SMBus Library.
  • 58-VAC - 255-VAC 3-phase input multiple output flyback reference design
    This offline flyback reference design uses the LM5021 controller to generate 3 isolated outputs (12 V at 705 mA: 12 V at 733 mA: 35 V at 25 mA) from an 3 phase AC input (58 VAC - 255 VAC). The DC input voltage range is between 100 V and 623 V. The design can provide 18-W output power. The LM5021 uses an optical coupler to regulate the 12-V output and to improve transient response. The controller operates with a fixed frequency of 100kHz.
  • ADS1675REF ADS1675 参考设计
    The ADS1675 is a high-speed, high-precision analog-to-digital converter (ADC). Using an advanced delta-sigma architecture, it operates up to 4MSPS with outstanding ac performance and dc accuracy. The ADS1675 Reference Design is a complete PC based solution for the evaluation of the ADS1675 usin
  • 40V to 60V DC input; 40W Dual output Isolated Flyback Converter (6V@4.33A)
    PMP7917 is a dual output flyback converter capable of 40W output power. This design uses the LM5021-1 current-mode PWM controller. The operating input voltage range is 40V to 60. The outputs are 6V at 4.33A and 4V at 3.5A. Self-driven synchronous operation is employed for the secondary rectifiers: resulting in good cross regulation.
  • Multioutput Isolated Flyback Supplies 23V@1A: 16.9V@200mA and 9V@300mA from High-line Ref. Design
    The PMP8582 generates three output: 23V@1A: 16.9V@200mA (400mApeak T
  • TIPD177 针对电流输出音频 DAC 的高保真耳机放大器参考设计
  • Universal Line to 13 Volts at 4.6 Amps Power Supply Reference Design
    Universal line to 13 volt at 60 watts power supply. This is a synchronous fly back operating in continuous conduction mode using TI's synchronous rectifier controller on the secondary.
  • PMP7882 非隔离式同步降压
    PMP7882 is a single-phase switching regulator accepting an input voltage range of 10.8Vin to 13.2Vin and providing an output voltage of 1.2Vout capable of supplying 12A of current. This design uses the LM27402 synchronous buck controller with lossless inductor DCR current sensing capability, which eliminates the need to add resistive powertrain elements and increases overall efficiency.
  • TIDA-00143 汽车类 60W 无刷直流 (BLDC) 电机驱动器
  • Small 3W Isolated Flyback: 30V...70Vin to 7V@430mA Reference Design
    This simple isolated flyback converts 30V…70Vin to 7V@430mA. The LM5021-2 controller is suitable for green mode converters due to pulse skip mode.
  • TIDA-00201 使用磁通门传感器并用于电流和电压测量的差分信号调节电路
    This design provides a 4-channel signal conditioning solution for differential ADCs integrated into a microcontroller measuring motor current using fluxgate sensors. Also provided is an alternative measurement circuit with external differential SAR ADCs as well as circuits for high-speed overcurr
  • 100VACin to 240VACin; 5Vout @ 0.5A; Offline Isolated Flyback AC to DC Converter
    An offline isolated flyback AC-to-DC converter that accepts an input voltage of 100VAC to 240VAC and provides an isolated output of 5Vout capable of delivering 0.5A. This design features a very low standby current with pulse skipping.
  • PMP8917 高效率同步反激（36-72Vin 至 5Vout@2A）
    PMP8917 has been designed as a competitive open-frame alternative for the communications market with 36-72Vin to 5V/2A. The product is supplied in the industry standard footprint of 2.0 x 1.0 x 0.394 inches. PMP8917 has a basic insulation system from input to output making it suitable for a wide variety of applications. LM5020 is used as synchronous Flyback converter controller for PMP8917 with 92.9% converter efficiency.
  • Isolated Non-synchronous Flyback Converts Universal Vin to 18V@550mA Reference Design
    The LM5021-2 is an off-line controller that can work in CCM and DCM. A pulse skip mode improves the efficiency of this isolated flyback: and flattens the curve at most loads. It is also suitable for power line communication PSU.
  • Off Line Power Supply for Audio Reference Design
    Universal line input to + and -24 V DC output designed for audio applications. The supply uses a two switch fly back topology with a low cost LM5021 controller. The supply is designed to handle 150 watts peak power required by an audio amplifier but thermally designed for the lower average power common in audio applications.
  • Universal Input to 3.3V: 12V: 30V: 200W Continuous PSU for Class-D Amplifier Reference Design
    This power reference design generates all voltages to supply a class-D audio amplifier. The main output voltage is 30V and delivers 200W continuously and 750W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on secondary side. A hardware switch + remote input let the converter enter in stand-by mode: in this status the 30V output is disabled while 12V: 3.3V are
  • Load Detecting Power Supply
    Every year: millions of Watts are lost in heat from inefficient linear AC/DC wall adapters. This loss is incurred even when there is no load applied. The cause of this inefficiency is that energy is being lost from leakage elements found in the transformer and electrolytic capacitors. This reference design shows that by using a SMPS instead of a linear supply: you can drastically reduce the amount of wasted energy and by adding some additional circuitry that “wakes” up the supply when a load is applied: losses drop to a few milliwatts.The wake on load AC/DC power adapter is a wall mount power supply which converts 100-240Vac to 5Vdc at 500mA to a USB port. The typical application for this type of AC/DC adapter is a cell phone charger. The unique feature of this power adapter is extremely low power consumption when the output is not loaded. This power adapter uses Texas Instruments' LM5021 PWM controller and has a load detection and shutdown circuit which turns off the PWM IC at no load. It won’t restart until the output is loaded ( wake on load ) or the output capacitor is discharged to a certain level. The start up circuit is designed to consume less than 40uA current at high line input during shutdown period. By doing so: the no load power consumption of this adapter can be greatly reduced.
  • Ultra-wide Input Range (48VAC to 240VAC) Flyback Reference Design
    The PMP30280 reference design generates two isolated outputs (6V @ 1.2A / 20V @ 0.15A) from an AC input (48VAC to 240VAC). The LM5021 operates at either a fixed switching frequency or in a skip cycle mode when the converter load is light. The design uses an optical coupler to regulate the output and to improve transient response.
  • 20W 3-Phase E-Meter Flyback Reference Design
    The PMP10129 has been designed especially for E-meters. It uses the LM5021 flyback controller to provide two isolated outputs (6V and 24V) from an 3-phase input. The input voltage range is between 90VAC and 460VAC.
  • PMP30122 TPS54160A 为噪声敏感型 RF 前置驱动器供电的微型降压参考设计
    PMP30122 参考设计适用于 40V 至 55V 的输入电压范围，输出电压为 28V (0.5A)。该设计也针对 1A 的最大峰值输出电流进行了测试。该降压转换器专用于为敏感负载供电，同时，由于其配备输入滤波器，还可消减对电源的反射纹波。这一布局本身就是为了将辐射噪声降至最低，实现开关节点处无甚高频振铃。反馈分压器适用于 24V、28V 和 32V 输出。
  • 24V/1.45A AC/DC Flyback PSU Optimized for Low AC Line Input Reference Design
    This design is a compact: low AC line input (Maximum 130Vac) Flyback converter which provides a regulated and fully-isolated 24V@1.45A output. Featuring TI's LM5021 current mode controller working at 135kHz: the converter features fast start-up and delivers greater than 85% efficiency from 30-100% load. The overall solution is very compact at 2312sq.mm. footprint area.
  • 3-ph E-Meter. Input voltage: 2 and 3 phase; outputs: 16.5V@300mApk: 12V@500mA: 3.3V@100mApk: 1.9V@15
    The PMP7146 has been designed especially for E-meters with PLC (power line communication) on board. The input filter shows high impedance to the PLC transmitter and the controller LM5021 works in constant switching frequency. A settable skip-mode improves the efficiency at light load. Two Bucks and an LDO supply the power to the digital section of the E-meter.
  • CYCLONEIII-STARTER-REF Cyclone III 入门套件
    This EBV designed board is the ideal board to start first experiments based on Altera Cyclone III FGPAs.
  • Small Automotive High Input Voltage 3W Isolated Flyback 600Vin to 15V at 200mA Reference Design</
    This simple isolated flyback converts 50V…600Vin to 15V@200mA. The LM5021-1 controller is suitable for green mode converters due to pulse skip mode. Since the input maximum voltage is 600V: the pulse skip mode improves the efficiency due to the reduction of the switching losses.
  • PMP6720 300W 移相全桥
    300 瓦相移全桥 48v 输入，14v 输出

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