TPS54336ADDAR HSOP-8 has the advantages of eco mode (tm) 4.5V to 28V input, 3A, synchronous step-down SWIFT (tm) converter for shipment
characteristic
Synchronous 128m Ω and 84m Ω metal oxide semiconductor field effect transistors (MOSFETs) for
3A continuous output current
TPS54335A: internal 2ms soft start,
Adjustable frequency from 50kHz to 1.5MHz
TPS54336A: adjustable soft start,
340kHz fixed frequency
Quiescent current is as low as 2 µ A when switching off
0.8V reference voltage, accuracy ± 0.8%
Current mode control
Monotonic start for pre biased output
Pulse skip mode for improving efficiency under light load
Intermittent mode overcurrent protection
Thermal Shutdown (TSD) and
Overvoltage transformation protection
8-pin small outline (SO) PowerPad and 10 pin ultra-thin small outline (VSON) package
Scope of application
Consumer applications Consumer applications, such as digital TV (DTV), set-top box (STB, digital video disc (DVD)/Blu ray player), LCD, client equipment (CPE) (cable modem, WiFi router), digital light processing (DLP) projector, smart meter
Battery charger
Audio power supply for industrial and vehicle
5V, 12V and 24V distributed power bus power supply
explain
TPS5433xA series devices are synchronous converters, and the input voltage range is between 4.5V and 28V. This series of devices are integrated with low side switching field effect transistors (FETs), eliminating the need for external diodes, thereby reducing the number of components.
With integrated 128m Ω and 84m Ω MOSFETs, low IQ and pulse skip mode under light load, the efficiency is greatly improved. The power off current can be reduced to 2 µ A by enabling the pin. The reference voltage of the buck converter can maintain an accuracy of 1.5% in the whole temperature range, and can provide accurate voltage stabilization for various loads.
Synchronous 128m Ω and 84m Ω metal oxide semiconductor field effect transistors (MOSFETs) for
3A continuous output current
TPS54335A: internal 2ms soft start,
Adjustable frequency from 50kHz to 1.5MHz
TPS54336A: adjustable soft start,
340kHz fixed frequency
Quiescent current is as low as 2 µ A when switching off
0.8V reference voltage, accuracy ± 0.8%
Current mode control
Monotonic start for pre biased output
Pulse skip mode for improving efficiency under light load
Intermittent mode overcurrent protection
Thermal Shutdown (TSD) and
Overvoltage transformation protection
8-pin small outline (SO) PowerPad and 10 pin ultra-thin small outline (VSON) package
Scope of application
Consumer applications Consumer applications, such as digital TV (DTV), set-top box (STB, digital video disc (DVD)/Blu ray player), LCD, client equipment (CPE) (cable modem, WiFi router), digital light processing (DLP) projector, smart meter
Battery charger
Audio power supply for industrial and vehicle
5V, 12V and 24V distributed power bus power supply
explain
TPS5433xA series devices are synchronous converters, and the input voltage range is between 4.5V and 28V. This series of devices are integrated with low side switching field effect transistors (FETs), eliminating the need for external diodes, thereby reducing the number of components.
With integrated 128m Ω and 84m Ω MOSFETs, low IQ and pulse skip mode under light load, the efficiency is greatly improved. The power off current can be reduced to 2 µ A by enabling the pin. The reference voltage of the buck converter can maintain an accuracy of 1.5% in the whole temperature range, and can provide accurate voltage stabilization for various loads.
Cycle by cycle current limiting of high side FET can protect TPS5433xA series devices under overload, and prevent current runaway through current limiting of low side power supply, thus realizing function enhancement. The low side pouring current limit can turn off the low side MOSFET to prevent excessive reverse current. When the duration of over-current exceeds the preset time, the intermittent protection function will be triggered. Thermal shutdown will disable the device when the chip temperature exceeds the threshold, and enable the device again after a built-in thermal interruption time.
