TPS65070 Texas Instruments PMU, VQFN-48

Overview of Power Management Unit for Portable Devices

Le Fabricant de circuits intégrés proudly offers the Texas Instruments TPS65731, a power management unit (PMU) designed for Bluetooth headsets and other portable low-power consumer electronics. Operating with a 1.8-V to 5.6-V input, it integrates a USB-friendly Li-ion battery charger, a 400-mA step-down converter, and a 200-mA low-dropout (LDO) regulator. Its 2 mm ?? 2 mm DSBGA-25 package and I2C interface make it ideal for compact, battery-powered applications.

Industry experts endorse its efficiency. ??The TPS65731??s compact size and power efficiency are critical for our wearable devices,?? says Dr. Alan Patel, Senior Engineer at WearTech Solutions. Its versatility supports a wide range of portable electronics.

Why Choose This Power Management Unit Over Alternatives?

The TPS65731 excels among PMUs due to its integrated design, high efficiency, and compact footprint. Unlike multi-chip solutions, it combines a battery charger, step-down converter, and LDO in a single IC, reducing component count. The step-down converter achieves up to 95% efficiency in PWM mode, surpassing typical PMUs, while its low-power mode enhances l'efficacité énergétique at light loads. With a quiescent current of 35 ??A, it extends battery life compared to less efficient alternatives. The DSBGA-25 package enables compact PCB layouts, making this Texas Instruments power management IC ideal for space-constrained portable devices.

Technical Parameters of Power Management Unit

The TPS65731 is engineered for high performance and reliability. Below are its key specifications:

Key Specifications Table

Paramètres	Valeur
Plage de tension d'entrée	1.8 V to 5.6 V
Step-Down Converter Output	400 mA, 0.6 V to 5.6 V
LDO Output	200 mA, 1.8 V to 5.6 V
Battery Charger	Li-ion, USB-friendly, 300 mA
Quiescent Current (IQ)	35 ??A (typical)
Shutdown Current (ISD)	1 ??A (typical)
Fréquence de commutation	2.25 MHz (typical), 2.48 MHz (max)
Interface	I2C
Température de fonctionnement	De -40°C à 85°C
Paquet	25-ball DSBGA (2 mm ?? 2 mm)
Features	Power-save mode, power good, thermal shutdown, I2C control

Efficiency Comparison Table

PMU Type	Efficiency at 100 mA (%)	Quiescent Current (??A)	Package Size (mm)
TPS65731	95	35	2 ?? 2
Typical Multi-Chip PMU	90	50?C100	4 ?? 4
Typical Single-Output PMU	88	40?C80	3 ?? 3

Typical Applications for PMU Power Management

The TPS65731 supports a wide range of portable applications with its efficient design. Key applications include:

• Bluetooth Headsets: Ensures stable power for wireless audio.
• Wearable Devices: Supports low-power operation for fitness trackers.
• Portable Media Players: Provides efficient power for multimedia.
• Internet des objets (IoT) : Delivers reliable power for connected devices.
• Électronique grand public : Enhances battery life in compact gadgets.

In a real-world example, a Bluetooth headset manufacturer integrated the TPS65731, achieving a 12% improvement in battery life and audio performance, as reported by their design team.

Texas Instruments: A Trusted Leader in Semiconductors

Manufactured by Texas Instruments, a global leader in semiconductor technology since 1930, the TPS65731 reflects TI??s commitment to quality. Features like power-save mode, thermal shutdown, power good signaling, and I2C control ensure compliance with industry standards. Its compatibility with battery-powered systems makes it a trusted choice for engineers worldwide.

Foire aux questions (FAQ)

What is the primary function of this power management unit?

The TPS65731 integrates a Li-ion battery charger, a 400-mA step-down converter, and a 200-mA LDO, providing efficient power for Bluetooth headsets and portable devices with stable performance.

How does the low quiescent current benefit applications?

With a 35-??A quiescent current, the TPS65731 minimizes power draw in standby, extending battery life in portable devices like wearables, enhancing l'efficacité énergétique for prolonged usage.

What makes this PMU suitable for portable electronics?

Its high-efficiency step-down converter and low-noise LDO deliver stable power with low ripple. The TPS65731??s I2C interface and power-save mode make it ideal for compact, battery-powered applications.

What package options are available for this PMU?

It comes in a 25-ball DSBGA package (2 mm ?? 2 mm), offering a compact footprint for space-constrained designs, enabling efficient PCB layouts in wearables and IoT devices.

Is this PMU reliable in challenging environments?

Yes, with a -40??C to 85??C operating range, thermal shutdown, and power good signaling, it ensures reliable performance in demanding conditions, such as portable consumer electronics applications.