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Beyond their outstanding image quality, new-generation televisions have a very thin design, are highly power-efficient and feature a stand-by power mode. Power Supply Units (PSUs) play a key role in ensuring TVs meet market requirements and have an elegant form factor. To achieve these stringent requirements, today's PSUs feature a Power Factor Corrector (PFC) and often use advanced topologies such as half-bridge LLC (HB-LLC) resonant converters. Read more

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In order to help design engineers implement a digital PSU, ST offers a broad portfolio of high-voltage MDmesh™ and low-voltage STripFET™ power MOSFETs, Field-Effect Rectifier Diodes (FERD), Schottky and ultra-fast diodes, protection devices, dedicated analog and digital switching controllers as well as STM32 microcontrollers.

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	Resource title		Latest update

Application Notes (5 of 58)

Design Notes & Tips (1)

	Resource title		Latest update
PDF	DT0009 Speed up development of the L6699 with the L6599A and flexible PCB layout 1.2		09 Sep 2019	09 Sep 2019 DT0009 Speed up development of the L6699 with the L6599A and flexible PCB layout 1.2

Flyers (1)

	Resource title		Latest update
PDF	STNRG011 - Digital multi-mode PFC and LLC resonant half-bridge controller 04.2018		31 Mar 2021	31 Mar 2021 STNRG011 - Digital multi-mode PFC and LLC resonant half-bridge controller 04.2018

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Finders Apps

Part number	Status	Description	Type	Supplier
ST Voltage Regulator Finder	Active	Linear and switching voltage regulators and voltage reference applications for smartphones and tablets	Finders Apps	ST	ST Voltage Regulator Finder Description: Linear and switching voltage regulators and voltage reference applications for smartphones and tablets

	Resource title	Latest update
PDF	AN3063 100 W transition-mode PFC pre-regulator with the L6563H 3.1	13 Sep 2018	13 Sep 2018 AN3063 100 W transition-mode PFC pre-regulator with the L6563H 3.1
PDF	AN3065 100 W transition-mode PFC pre-regulator with the L6563S 2.1	13 Sep 2018	13 Sep 2018 AN3065 100 W transition-mode PFC pre-regulator with the L6563S 2.1
PDF	AN4077 100 W transition-mode PFC pre-regulator with the new L6564H 1.0	13 Sep 2018	13 Sep 2018 AN4077 100 W transition-mode PFC pre-regulator with the new L6564H 1.0
PDF	AN5034 12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller 2.0	24 Mar 2020	24 Mar 2020 AN5034 12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller 2.0
PDF	AN5118 12 V – 150 W power supply based on STNRG011 digital combo and SRK2001 adaptive synchronous rectifier controller 1.2	12 Oct 2020	12 Oct 2020 AN5118 12 V – 150 W power supply based on STNRG011 digital combo and SRK2001 adaptive synchronous rectifier controller 1.2
PDF	AN5106 150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller 3.0	24 Mar 2020	24 Mar 2020 AN5106 150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller 3.0
PDF	AN828 1500W - 440V power factor corrector preregulator 3.3	13 Sep 2018	13 Sep 2018 AN828 1500W - 440V power factor corrector preregulator 3.3
PDF	AN3339 185 W power supply with PFC and standby supply for LED TV using the L6564, L6599A, and VIPER27LN 2.0	13 Sep 2018	13 Sep 2018 AN3339 185 W power supply with PFC and standby supply for LED TV using the L6564, L6599A, and VIPER27LN 2.0
PDF	AN5035 19 V - 90 W adapter based on the STCMB1, combo TM PFC and HB LLC 2.0	13 Sep 2018	13 Sep 2018 AN5035 19 V - 90 W adapter based on the STCMB1, combo TM PFC and HB LLC 2.0
PDF	AN4026 19 V - 90 W adapter with PFC for laptop computers using the L6563H and L6699 1.3	07 Mar 2019	07 Mar 2019 AN4026 19 V - 90 W adapter with PFC for laptop computers using the L6563H and L6699 1.3
PDF	AN3014 19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A 3.1	13 Sep 2018	13 Sep 2018 AN3014 19 V, 90 W resonant converter with synchronous rectification using L6563H, L6599A and SRK2000A 3.1
PDF	AN3118 250 W transition-mode PFC pre-regulator with the new L6563H 2.1	13 Sep 2018	13 Sep 2018 AN3118 250 W transition-mode PFC pre-regulator with the new L6563H 2.1
PDF	AN3119 250 W transition-mode PFC pre-regulator with the new L6563S 2.1	13 Sep 2018	13 Sep 2018 AN3119 250 W transition-mode PFC pre-regulator with the new L6563S 2.1
PDF	AN2755 400 W FOT-controlled PFC pre-regulator with the L6562A 1.2	13 Sep 2018	13 Sep 2018 AN2755 400 W FOT-controlled PFC pre-regulator with the L6562A 1.2
PDF	AN2485 400 W FOT-controlled PFC pre-regulator with the L6563 1.2	13 Sep 2018	13 Sep 2018 AN2485 400 W FOT-controlled PFC pre-regulator with the L6563 1.2
PDF	AN2994 400 W FOT-controlled PFC pre-regulator with the L6563S 2.1	13 Sep 2018	13 Sep 2018 AN2994 400 W FOT-controlled PFC pre-regulator with the L6563S 2.1
PDF	AN4930 500 W fully digital AC-DC power supply (D-SMPS) evaluation board 1.0	19 Mar 2021	19 Mar 2021 AN4930 500 W fully digital AC-DC power supply (D-SMPS) evaluation board 1.0
PDF	AN1606 A "bridgeless PFC configuration" based on L4981 PFC controller 3.2	13 Sep 2018	13 Sep 2018 AN1606 A "bridgeless PFC configuration" based on L4981 PFC controller 3.2
PDF	AN3180 A 200 W ripple-free input current PFC pre-regulator with the L6563S 1.0	13 Sep 2018	13 Sep 2018 AN3180 A 200 W ripple-free input current PFC pre-regulator with the L6563S 1.0
PDF	AN827 A 500W high power factor with the L4981A continuous mode IC 1.2	13 Sep 2018	13 Sep 2018 AN827 A 500W high power factor with the L4981A continuous mode IC 1.2
PDF	AN2649 A power factor corrector with MDmesh™ II and SiC diode 2.0	13 Sep 2018	13 Sep 2018 AN2649 A power factor corrector with MDmesh™ II and SiC diode 2.0
PDF	AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1	24 Mar 2020	24 Mar 2020 AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
PDF	AN2644 An introduction to LLC resonant half-bridge converter 2.0	19 Mar 2021	19 Mar 2021 AN2644 An introduction to LLC resonant half-bridge converter 2.0
PDF	AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1	13 Sep 2018	13 Sep 2018 AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1
PDF	AN604 Calculation of conduction losses in a power rectifier 3.2	24 Mar 2021	24 Mar 2021 AN604 Calculation of conduction losses in a power rectifier 3.2
PDF	AN4021 Calculation of reverse losses in a power diode 1.0	24 Mar 2021	24 Mar 2021 AN4021 Calculation of reverse losses in a power diode 1.0
PDF	AN510 Circuits for power factor correction with regards to mains filtering 1.3	13 Sep 2018	13 Sep 2018 AN510 Circuits for power factor correction with regards to mains filtering 1.3
PDF	AN4381 Current sharing in parallel diodes 1.0	24 Mar 2021	24 Mar 2021 AN4381 Current sharing in parallel diodes 1.0
PDF	AN628 Designing a high power factor switching preregulator with the L4981 continuous mode 9.4	13 Sep 2018	13 Sep 2018 AN628 Designing a high power factor switching preregulator with the L4981 continuous mode 9.4
PDF	AN1895 EVAL6562-375W Evaluation Board L6562-based 375W FOT-controlled PFC Pre-regulator 3.1	13 Sep 2018	13 Sep 2018 AN1895 EVAL6562-375W Evaluation Board L6562-based 375W FOT-controlled PFC Pre-regulator 3.1
PDF	AN5264 EVL400W-EUPL7 400W SMPS demonstration board 2.0	24 Mar 2020	24 Mar 2020 AN5264 EVL400W-EUPL7 400W SMPS demonstration board 2.0
PDF	AN4163 EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D 2.0	13 Sep 2018	13 Sep 2018 AN4163 EVL4984-350W: 350 W CCM PFC pre-regulator with the L4984D 2.0
PDF	AN4338 EVLSTNRG-170W: 170 W SMPS with digitally controlled PFC and resonant LLC stage based on the STNRG388A 2.0	13 Sep 2018	13 Sep 2018 AN4338 EVLSTNRG-170W: 170 W SMPS with digitally controlled PFC and resonant LLC stage based on the STNRG388A 2.0
PDF	AN833 FREQUENCY MODULATION ON L4981B 1.1	13 Sep 2018	13 Sep 2018 AN833 FREQUENCY MODULATION ON L4981B 1.1
PDF	AN4539 HRTIM cookbook 4.0	09 Jan 2020	09 Jan 2020 AN4539 HRTIM cookbook 4.0
PDF	AN4720 Half bridge resonant LLC converters and primary side MOSFET selection 1.0	19 Mar 2021	19 Mar 2021 AN4720 Half bridge resonant LLC converters and primary side MOSFET selection 1.0
PDF	AN4214 High power factor flyback converter using L6564 2.0	13 Sep 2018	13 Sep 2018 AN4214 High power factor flyback converter using L6564 2.0
PDF	AN3009 How to design a transition mode PFC pre-regulator using the L6564 4.3	13 Sep 2018	13 Sep 2018 AN3009 How to design a transition mode PFC pre-regulator using the L6564 4.3
PDF	AN3027 How to design a transition-mode PFC pre-regulator with the L6563S and L6563H 4.1	13 Sep 2018	13 Sep 2018 AN3027 How to design a transition-mode PFC pre-regulator with the L6563S and L6563H 4.1
PDF	AN5119 How to design an application from draft with STNRG011 1.1	24 Mar 2020	24 Mar 2020 AN5119 How to design an application from draft with STNRG011 1.1
PDF	AN2450 LLC resonant half-bridge converter design guideline 6.0	19 Mar 2021	19 Mar 2021 AN2450 LLC resonant half-bridge converter design guideline 6.0
PDF	AN4406 MDmesh™ M2: the new ST super-junction technology ideal for resonant topologies 1.0	19 Mar 2021	19 Mar 2021 AN4406 MDmesh™ M2: the new ST super-junction technology ideal for resonant topologies 1.0
PDF	AN4789 Monolithic Schottky diode in ST F7 LV MOSFET technology: improving application performance 1.1	19 Mar 2021	19 Mar 2021 AN4789 Monolithic Schottky diode in ST F7 LV MOSFET technology: improving application performance 1.1
PDF	AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1	24 Mar 2021	24 Mar 2021 AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
PDF	AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0	24 Mar 2021	24 Mar 2021 AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
PDF	AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0	24 Mar 2021	24 Mar 2021 AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
PDF	AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6	24 Mar 2021	24 Mar 2021 AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6
PDF	AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1	24 Mar 2021	24 Mar 2021 AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
PDF	AN4674 SRK2001 adaptive synchronous rectification controller for LLC resonant converter evaluation board family 2.0	13 Sep 2018	13 Sep 2018 AN4674 SRK2001 adaptive synchronous rectification controller for LLC resonant converter evaluation board family 2.0
PDF	AN4667 STM32F7 Series system architecture and performance 4.0	13 Sep 2018	13 Sep 2018 AN4667 STM32F7 Series system architecture and performance 4.0
PDF	AN829 Semiconductor kit for power factor corrector 3.3	13 Sep 2018	13 Sep 2018 AN829 Semiconductor kit for power factor corrector 3.3
PDF	AN2782 Solution for designing a 400 W fixed-off-time controlled PFC preregulator with the L6562A 2.1	13 Sep 2018	13 Sep 2018 AN2782 Solution for designing a 400 W fixed-off-time controlled PFC preregulator with the L6562A 2.1
PDF	AN3142 Solution for designing a 400 W fixed-off-time controlled PFC preregulator with the L6563S and L6563H 3.1	13 Sep 2018	13 Sep 2018 AN3142 Solution for designing a 400 W fixed-off-time controlled PFC preregulator with the L6563S and L6563H 3.1
PDF	AN3112 Solution for designing a fixed off-time controlled PFC pre-regulator with the L6564 3.0	13 Sep 2018	13 Sep 2018 AN3112 Solution for designing a fixed off-time controlled PFC pre-regulator with the L6564 3.0
PDF	AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1	13 Sep 2018	13 Sep 2018 AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1
PDF	AN2435 TM sepic converter in PFC pre-regulator 1.1	13 Sep 2018	13 Sep 2018 AN2435 TM sepic converter in PFC pre-regulator 1.1
PDF	AN869 Tj max limit of Schottky diodes 2.2	24 Mar 2021	24 Mar 2021 AN869 Tj max limit of Schottky diodes 2.2
PDF	AN523 UNDERSTANDING POWER FACTOR 1.2	13 Sep 2018	13 Sep 2018 AN523 UNDERSTANDING POWER FACTOR 1.2