Tps54302ddcr tsot-23-6 DC-DC power supply chip has a large supply
explain
Tps54302 device is a 3A synchronous step-down converter with an input voltage range of 4.5V to 28V. The device includes two integrated switching FETs and has the functions of internal loop compensation and 5ms internal soft start, which can reduce the number of components.
By integrating MOSFET and using SOT-23 package, tps54302 device can achieve high power density and occupy very little space on printed circuit board (PCB). Eco mode implementation can improve light load efficiency and reduce power loss as much as possible.
In tps54302 device, spread spectrum operation is introduced to reduce EMI.
The cycle by cycle current limiting function on the high side MOSFET protects the converter under overload conditions and is enhanced by the freewheeling current limiting function of the low side MOSFET to prevent current runaway. When the overcurrent duration * exceeds the preset time, the intermittent mode protection function will be triggered.
characteristic
• wide input voltage range from 4.5V to 28V
• integrated 85m Ω and 40m Ω MOSFET with continuous output current of 3A
• the off current is as low as 2 µ A and the quiescent current is 45 μ A • internal 5ms soft start
• 400kHz fixed switching frequency
• spread spectrum reduces EMI
• ** Eco-mode ™ Pulse jump
• peak current mode control
• internal loop compensation
• provide overcurrent protection for both MOSFETs through intermittent mode protection
• overvoltage protection
• thermal shutdown
• SOT-23 (6) package
application
• 12V, 24V distributed bus power supply
• industrial applications
– white goods
• consumer applications
– audio
– STB, DTV
– printer
Tps54302 device is a 3A synchronous step-down converter with an input voltage range of 4.5V to 28V. The device includes two integrated switching FETs and has the functions of internal loop compensation and 5ms internal soft start, which can reduce the number of components.
By integrating MOSFET and using SOT-23 package, tps54302 device can achieve high power density and occupy very little space on printed circuit board (PCB). Eco mode implementation can improve light load efficiency and reduce power loss as much as possible.
In tps54302 device, spread spectrum operation is introduced to reduce EMI.
The cycle by cycle current limiting function on the high side MOSFET protects the converter under overload conditions and is enhanced by the freewheeling current limiting function of the low side MOSFET to prevent current runaway. When the overcurrent duration * exceeds the preset time, the intermittent mode protection function will be triggered.
characteristic
• wide input voltage range from 4.5V to 28V
• integrated 85m Ω and 40m Ω MOSFET with continuous output current of 3A
• the off current is as low as 2 µ A and the quiescent current is 45 μ A • internal 5ms soft start
• 400kHz fixed switching frequency
• spread spectrum reduces EMI
• ** Eco-mode ™ Pulse jump
• peak current mode control
• internal loop compensation
• provide overcurrent protection for both MOSFETs through intermittent mode protection
• overvoltage protection
• thermal shutdown
• SOT-23 (6) package
application
• 12V, 24V distributed bus power supply
• industrial applications
– white goods
• consumer applications
– audio
– STB, DTV
– printer