TEXAS INSTRUMENTS LMZ21700SILT Nano DC/DC Buck Converter Module, 0.9-6V out, 3-

The TEXAS INSTRUMENTS LMZ21700SILT is a SIMPLE SWITCHER nano module, offering a complete, compact step-down DC-to-DC solution. This innovative module integrates the inductor into an 8-pin µSIP package, making it exceptionally easy to design into space-constrained applications. Capable of driving loads up to 650mA, it simplifies your power supply design by requiring only a minimal external component count.

Key Features & Performance

For basic operation, you need only an input capacitor, an output capacitor, a soft-start capacitor, and two resistors. This ease of use, combined with its miniature 3.5mm x 3.5mm x 1.75mm footprint, makes it ideal for modern, compact electronics. It delivers excellent efficiency of up to 95%, minimising power loss and heat generation.

The module provides a wide adjustable output voltage range from 0.9V to 6V, accommodating a variety of low-voltage digital and analogue circuits. It accepts an input voltage from 3V to 17V, offering flexibility for battery-powered or regulated supply applications. Its high switching frequency range of 1.25MHz to 2.5MHz allows for the use of small external filter components.

Advanced Functionality

Designed for efficient power management, the module features an ultra-low 1.5µA shutdown current and 17µA quiescent current, which is critical for battery-powered devices. It seamlessly transitions into a power save mode to maximise efficiency at light loads. For robust system control, it includes an adjustable soft-start function to manage inrush current, along with power good and enable pins for sequencing and control.

Built to perform in demanding environments, the device supports a wide junction temperature range from -40°C to 125°C. This high level of integration, performance, and reliability in a nano-module form factor provides an optimal power solution for portable devices, embedded systems, and IoT applications where board space,