Silego introduces next GreenPAK LDO for wearable and handheld markets

Silego Technology has added the SLG46580 with four 150mA low drop out (LDO) regulators to its GreenPAK family based on its Programmable Mixed-signal Integrated Circuit (PMIC) architecture.

The SLG46580 is designed to support power systems in wearable and handheld market segments. It is both highly integrated and highly flexible, says Silego, and has a rich set of features, including voltage monitoring, power sequencing, reset functions and LDO regulators, that are configurable in settings and interconnect.

The SLG46580 is the second device in the series of parts designed to create Flexible Power Islands (FPI). Power system design for mobile devices, and especially wearable devices, increases in presenting design engineers with challenges, says Silego. End users want smaller and lighter devices, while at the same time, demanding longer battery life. These opposing goals, and the need to reduce both cost and the size of the circuit boards, are just a few of the challenges facing the power system designer today. To overcome these challenges, Silego has developed the concept of FPIs. Designers can divide their complex power system into local power regions, or islands, each of which includes the power control, power sequencing and power regulation needed to support loads in the immediate vicinity.

Silego believes this technique results in higher performance and a more efficient solution that can be flexibly tailored to the requirements of each individual system.

With the SLG46580, Silego has captured many of these necessary power system functions (power monitoring, sequencing, reset and power switching) in a tiny 2.0 x 3.0mm, 20-pin, fully encapsulated plastic package.

Silego’s graphic user interface (GUI) -based GPAK Designer software, and GPAK development hardware, help designers quickly implement the configuration of the device, thereby customising the functions to match power requirements.

The SLG46580 has four LDOs, each with a maximum output current of 150mAs. Each of the LDOs has a programmable output voltage level that can be set to one of 32 different values from 0.9 to 4.35V, and also have programmable options for slew-rate selection and fault detection.

Nathan John, Silego’s director of marketing said: “The flexibility provided is very close to a full-custom integrated circuit design, and the very small size allows the design engineer to place them close to critical loads for maximum efficiency. We believe this is yet another example of how Silego’s CMIC strategy provides value to customers.”

Since the introduction of the CMIC platform, Silego has developed five generations of CMIC silicon and design tools. Each generation has added functionality and the resulting designs are used in handheld devices, wearable electronics, computing ad storage products, consumer electronics, smart home devices, networking and communications and medical and industrial designs.

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