Product Overview: TPS61058DRCR from Texas Instruments

The TPS61058DRCR is a high-performance, fully integrated synchronous boost converter with a dual high current white LED driver, designed and manufactured by Texas Instruments. This compact and efficient power management IC is an ideal choice for portable applications where space is at a premium and high efficiency is required, such as smartphones, tablets, and other handheld devices.

The device operates with a supply voltage range from 2.7V to 6.0V, making it versatile for various power sources, including single-cell lithium-ion or lithium-polymer batteries, as well as multi-cell alkaline or NiMH batteries. The TPS61058DRCR can deliver an output voltage up to 26V in boost mode, which is necessary for driving multiple white LEDs in series, ensuring consistent brightness and extending battery life.

With an integrated 2-A, 0.2-ohm power switch, the TPS61058DRCR provides excellent power efficiency, which is further enhanced by its 1-MHz fixed switching frequency, reducing the size of the external components. Additionally, the device features a true load disconnect function that isolates the load from the power source when it is disabled, minimizing standby current consumption.

The TPS61058DRCR incorporates a range of protective features to ensure the longevity and reliability of the end application. These include over-temperature protection, over-voltage protection, and under-voltage lockout. Furthermore, the device offers a programmable soft start function to limit inrush current during startup.

Housed in a small 10-pin VSON package, the TPS61058DRCR also provides a space-saving solution on the PCB. The LED current can be set by an external resistor, giving designers flexibility in controlling the light intensity. For applications that require controlled dimming, the TPS61058DRCR supports pulse width modulation (PWM) input, which enables precise control over the brightness of the LEDs.

In summary, the TPS61058DRCR is a sophisticated, high-efficiency power solution from Texas Instruments, combining a boost converter with a dual LED driver, suitable for a wide range of portable applications where power efficiency and space constraints are critical considerations.