TPS2113APWRG4

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TPS2113APWRG4 belongs to a group of PMIC (Power Management Integrated Circuits) and OR (Output Regulation) Controllers, Ideal Diodes. This multi-function device provides good solution for enhancing the power supply compatibility, dynamic load transients and improving the power supply efficiency for Li-ion battery-powered portable applications. It also reduces the number of external components.

Features

• Input range: 2.7V to 5.5V
• Output voltage range: 1.8V to 5.5V
• Output voltage accuracy: ±2%
• Output current control range: 0-500mA
• Output current accuracy: ±4%
• Input current limit for current-limited operation: 0-200mA
• Over-current protection (OCP): 500mA
• Supply current when shutdown: 5µA typical
• Shutdown mode: active-low

Applications

• Cell phones
• Portable music players
• Digital still cameras
• Portable video cameras
• Wireless headsets and handsets
• Portable medical devices such as glucose meters
• Low-power applications such as wireless sensors

Working Principle

TPS2113APWRG4 employs a sophisticated SMPS (Switching Mode Power Supply) control architecture. It consists of two primary parts: the power control block and the voltage control block. The power control block includes a peak current-mode control circuit, which senses the peak current of the high-side power FET switch, and modulates the charging current based on a programmed peak current level. The voltage control block is composed of a voltage-mode control circuit, which provides stable regulation of output voltage by sensing the output voltage and compares it with a programmed voltage setpoint. The combination of peak current-mode and voltage-mode control enables precise voltage, current, and temperature regulation.

Conclusion

TPS2113APWRG4 is an ideal power supply solution for Li-ion battery-powered systems that require precise voltage and current control. It is suitable for use in cell phones, portable music players, digital still cameras, portable video cameras, wireless headsets, handsets, portable medical devices and low-power applications such as wireless sensors. With its advanced power and voltage control in a small package, it reduces external component count and enhances power efficiency, making it suitable for a variety of applications.

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