STBB2J29-R Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	2.9V, 3.4V
Base Part Number:	STBB2
Supplier Device Package:	20-Flip-Chip (2.1x1.8)
Package / Case:	20-UFBGA, FCBGA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2.5MHz
Current - Output:	800mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.4V
Number of Outputs:	1
Output Type:	Programmable
Topology:	Buck-Boost
Output Configuration:	Positive
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The STBB2J29-R is a DC DC switching regulator, typically referred to as a buck converter, used for a variety of applications in numerous industries. This voltage regulator is designed to produce a regulated output voltage from a higher input voltage source and is widely used in battery charging circuits, embedded systems, and power supply designs. As a switching regulator, it makes use of electronics to step down, or step up, the input voltage by utilizing an inductor and capacitors as a filter as well as an output transistor as a switch. The output voltage is adjustable, typically over a range of 2.5V to 17V, and is limited to 2A of output current with an efficiency of up to 88%.

Application Fields

The STBB2J29-R is an ideal voltage regulator for applications needing an efficient, reliable power supply design. The wide adjustable output range and the high output current make it an ideal choice for applications such as embedded systems, battery charging circuits, and many other power supply designs.Embedded systems benefit from the reliable, efficient, and highly adjustable output voltage of the STBB2J29-R for their power supply designs. The adjustable output voltage can be easily set to the exact voltage needed for the low-power embedded processor and other components, as well as the battery charging circuits. This reduces power loss and increases the overall system efficiency.Battery charging circuits are another application which benefits from the efficient and reliable power supply design of the STBB2J29-R. The adjustable output voltage allows it to be set to the optimum level needed and the high output current ensures that the battery is quickly and safely charged.The STBB2J29-R is also a great choice for other power supply design applications such as LED lighting and portable devices. The adjustable output voltage and high efficiency make it an excellent choice for these applications.

Working Principle

The STBB2J29-R uses a switching topology to regulate the output voltage. An inductor and capacitors act as a filter and a feedback circuit, controlling a switching transistor, are used to maintain a constant output voltage.When the input voltage is higher than the output voltage, the switching transistor is turned off and the inductor stores the energy. When the input voltage is lower than the output voltage, the switch is turned on and the stored energy is transferred to the output filter. This process is continuously repeated at the switching frequency, maintaining a steady output voltage.The output voltage can be adjusted to the desired level by changing the duty cycle or frequency of the switching transistor. The output current is limited to 2A and the efficiency is up to 88%.

Conclusion

The STBB2J29-R is a highly efficient, reliable and adjustable DC DC switching regulator. It can be used for a variety of applications such as embedded systems, battery charging circuits, LED lighting and portable devices designs. The adjustable output voltage, up to 2A output current, and up to 88% efficiency make it an ideal choice for these applications.

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