The PMP15008 reference design is a small high-frequency point-of-load regulator. The unique converter topology helps achieve high efficiency when operating at 2MHz per phase. This design is suitable for applications such as processor or memory power supplies with 8V to 14V input, 0.5V to 2V, and up to 10A output.
This reference design is ideal for running IR LEDs (up to 3A) in high current pulse mode in automotive ADAS systems. The design supports continuous and pulsed operation even during load dump and hot start events. Other features include analog dimming and CISPR-25 Class 3 EMI filtering.
This envelope tracking power supply reference design helps extend battery life in portable audio applications such as Bluetooth® or Wi-Fi speakers. The low-power buck converter in this design features envelope tracking for audio power amplifiers, maintaining high efficiency over the output voltage range. By adding an audio envelope signal to the FB pin of TI's TPS61178 device, the output voltage can change according to the envelope of the audio signal, thereby dynamically adapting to the power supply of the TPA3128D2 power amplifier and optimizing its power consumption.
This reference design uses the boost converter TPS61021A to provide a high-efficiency LED driver circuit with dimming capabilities. The PWM dimming method can be used for one or two AA battery input applications, while the analog dimming method can be used for one AA battery input application. The PMP15037 enables dimming functionality by adding multiple resistors and a MOSFET to the circuit, making it a cost-effective and efficient solution for LED driver applications.
This reference design circuit introduces a high-precision bidirectional current power supply solution used in battery test systems (BTS). The maximum current capacity is 6A, and the full-scale accuracy is less than 0.05%. Controlled by logic pins, this circuit can be used to charge or discharge the battery. During the charging process, the battery voltage can also be controlled through analog signals. Design of this circuit is simple and easy due to the fully integrated buck and boost converters. The performance of the solution can be verified via a built-in evaluation board.
The PMP20172 reference design delivers up to 36W on two USB Type-C outputs. Input is 17VDC bus. These two outputs enable port power management. If only one port is used, the entire 36W will be allocated to that port. If two ports are used, 18W will be allocated on each port. Supported output voltages are 5V, 9V or 15V.
PMP20327 is a synchronous 4-switch buck/boost converter using the LM5175 controller and can be used as a reference design for heater element power stages in applications such as e-cigarettes. Output voltages from 1V to 10V can be selected over a current range of 20A to 45A by using a trim resistor on the FB pin with a bias voltage of 0.2V to 3.1V. This design also uses the non-synchronous boost regulator LMR62014 to provide the bias voltage for the LM5175 operating in low input voltage mode. The current mode controller has built-in LM5175 pulse-by-pulse current limiting function. This board includes enable, sync, and power-good functions. The design supports resistive heating elements with resistances ranging from 0.1Ω to 0.5Ω, thus supporting a variety of 200W operating conditions.
The PMP20410 is a synchronous 4-switch buck/boost converter reference design using the LM5175 controller for battery charger applications. Output voltages from 1V to 10V can be selected over a current range of 13A to 28A by using a trim resistor on the FB pin with a bias voltage of 0.2V to 3.1V. This reference design also uses the nonsynchronous boost regulator LMR62014 to provide bias voltage for the LM5175 operating in 2.7V input voltage mode. The current mode controller has built-in LM5175 pulse-by-pulse current limiting function. This board includes enable, sync, and power-good functions. This reference design supports resistive heating elements with resistances ranging from 0.1Ω to 0.5Ω, allowing 80W of power to be supplied.
The PMP20612 reference design is a high efficiency AC-DC LED driver reference design with very low total harmonic distortion (THD). This design uses CCM PFC with the UCC28180 controller to provide power factor correction (PFC) functionality from 108VAC to 305VAC input. A two-switch Flyback converter with the UCC28740 controller is used to provide 200V/1A constant current (CC)/ constant voltage (CV). The voltage sensing and current sensing circuit at the output side with the TL431 and INA180 allow an external circuit to process a dimming function. As a result this design achieves 92.9% peak efficiency at 230VAC/50Hz input. At 277VAC, the board also has less than 20% THD with 20% load.
The PMP20634 reference design is an isolated DCM flyback design that provides a universal AC line input from 85V to 265V and produces a 12V output capable of handling a 12W load. The design uses the UCC28730 controller to achieve ultra-low standby power at no load. It achieves 85% efficiency in high and low voltage lines and measures 1 x 3 inches on a 2-layer circuit board.
This reference design is a high efficiency, high power density and light weight resonant converter reference design. It converts a 390V input to a 48V/1kW output. The PMP20637 power stage has over 140W/in^3 power density. The whole board weight is less than 210g. With fixed 950kHz switching frequency in steady state, 97.6% peak efficiency is achieved.
PMP20682 is a synchronous buck converter reference design using the LM5141-Q1 synchronous buck controller IC. This design accepts input voltages from 5V to 40V and provides a 3.3V output capable of delivering 10A to the load. The input contains an EMI filter. Optional frequency jitter and slew rate control features are available for additional EMI control. This design provides mounting holes for the bottom MOSFET heat sink.
The PMP20774 reference design is a universal USB Type-C charger utilizing the LM5175 DC/DC and TPS25740B PD controller for aftermarket automotive charger applications. This design operates with a minimum input voltage of 6V and a maximum input voltage of 40V. This design is capable of delivering 3A continuously at 5Vout, 9Vout, 15Vout and 20Vout. The switching frequency is set to 350kHz. The waveforms are collected when the input voltage is 12V and 24V.
Continuous-Conduction-Mode (CCM) Totem-pole power factor correction (PFC) is a simple but efficient power converter. To achieve 99% efficiency, there are many design details that need to be taken into account. The PMP20873 reference design uses TI’s 600VGaN power stage, LMG3410, and TI’s UCD3138 digital controller. The design overview provides more details on the CCM Totem-Pole topology operation, gives the detail design considerations of the circuit, and provides magnetics and firmware control design considerations. This converter design operates at 100KHz. A soft start at AC line crossover minimizes current spike and lowers THD. The PFC Firmware measures AC current and PFC output voltage in real-time and predicts the dead time needed for the switch node to complete a full swing. The adaptive dead time control effectively minimizes both switching loss and GaN FET body diode conduction loss. A GUI is available to support parameter setting and control loop tuning.
This reference design is a high power PoE Powered Device (PD) plus active clamp forward converter. The TPS2373 high power PD controller EVM (TPS2373-4EVM-758) provides all functions necessary to implement an IEEE802.3bt-ready PD. This is paired up with an active clamp forward converter utilizing the UCC2897A controller. The high efficiency 24V/3A output using synchronous rectifiers is ideally suited for high power PoE applications such as IP security cameras and LED lighting applications.
In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.
The PMP21251 reference design uses the UCC28056 CRM/DCM PFC controller, UCC256304 enhanced LLC controller and integrated driver to provide a 12V/10.8A output (continuous current, 14.4A peak current) from a universal AC input. This design achieves peak efficiency of 92.4% at 115VAC input and 94.0% at 230VAC input. Efficiency and power factor also meet 115V and 230V internal 80 PLUS Gold specifications and DoE Level VI requirements. Additionally, without turning off the PFC, the design can achieve power consumption as low as 89mW at an input supply voltage of 230VAC.
This reference design is a tiny 3-W auxiliary power supply reference design driving four outputs – two of them isolated to power some drivers. The wide input range is 6 V to 60 V, so 1:10 - here a discrete LDO is needed to expand BIAS voltage for controller LM51551. For lowest EMI, a SEPIC topology is used to ensure low reflected ripple and to avoid RF ringing at the switch node. The control loop is closed on the primary side to save additional cost of optoisolator. Dual feedback allows any weighted feedback in between 3.3-V / 11-V outputs.
The PMP40069 reference design is for portable DLP Pico projectors. It also comes with a 3-cell battery charger. The battery powers the projector when the adapter is unavailable. This solution implements the DLPA3000 PMIC/LED driver, DLPC3438 display controller and SMBus battery buck/boost charge controller BQ25700A. DLPA3000 PMIC is a fully integrated dedicated PMIC/LED driver that meets various system analog power requirements and can drive 0 ~ 6A RGB LEDs. The buck/boost charger is compatible with 5/9/12/15/20V output adapters. The charger is highly efficient and can provide 3A charging current for 3 batteries.
This reference design is a battery initialization reference design solution for automotive and battery applications. The module enables a high efficiency single stage conversion for charging and discharging the battery. This design features a 0.1% accurate current control loop using the high performance INA225 current sense amplifier. The design was achieved in a compact form factor (40mmX143mmX20mm).
The PMP4489 reference design is a dedicated USB-C PD2.0 DFP 5V/12V 3A output flyback converter featuring the secondary-side regulation UCC28740DR, which provides constant voltage and constant current functionality. This design features less than 75mW standby power consumption (DOE 6 and CoC V5 Level 2 compliant). The secondary voltage and secondary balanced synchronous rectifier UCC24636 achieves high efficiency with maximum SR on-time. The TPS25740 is fully compatible with USB Power Delivery 2.0 providers and Type-C downstream ports (DFP).
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