LM2695MH/NOPB

The LM2695MH/NOPB voltage regulator is a type of DC-DC switching regulator and part of the family of Power Management Integrated Circuits (PMIC) made by Texas Instruments (TI). The LM2695MH/NOPB is designed specifically for low-power and low-noise applications, such as portable devices and other battery-powered electronics. This voltage regulator offers improved efficiency and reduced board space, making it an attractive option for some applications.

The LM2695MH/NOPB is a step-down (buck) switching regulator, which means it takes an input voltage and reduces it to a lower, regulated output voltage. This voltage regulator is available in two configurations, fixed output (fixed 5.0V), and adjustable output (default 5.0V, can be adjusted from 3.3V to 5.5V).

The LM2695MH/NOPB boasts a typical efficiency rating of 81% and is capable of delivering up to 1.5A at 5V. It has a low input voltage range (2.7V - 5.5V), which makes it suitable for single and dual-cell Li-ion battery applications. Its low quiescent current (5µA) is also an advantage, particularly for applications that require ultra-low standby power consumption.

The LM2695MH/NOPB offers a variety of features that make it attractive for several applications. It is rated to operate over a wide temperature range (-40°C to +85°C), which means it can be used in most environmental conditions. Additionally, it features cycle-by-cycle current limit or foldback to protect against inductor or output short circuits, and provides on/off logic control.

The LM2695MH/NOPB integrates several elements—a regulator, a power switching network, and several protection circuits—into a single IC package. The voltage regulator employs a voltage-mode control architecture, with an internal compensation network. This design simplifies the requirements for the external components and reduces the required external circuitry to just a few passive components.

The power switching network consists of an internal N-MOSFET and P-MOSFET, which are switched on and off at a frequency of up to 1.2 MHz. The power switching network provides the necessary current to the output for the load. Two protection circuits—over-voltage cut-off (OVP) and input under-voltage protection (UVLO)—are also included to guard against fault situations.

In summary, the LM2695MH/NOPB voltage regulator is a one-chip solution offering low power and low noise performance, which makes it suitable for a variety of low-voltage and portable electronics applications. This voltage regulator integrates several elements—a regulator, a power switching network, and several protection circuits—into a single IC package, providing improved efficiency and reduced board space. The LM2695MH/NOPB offers a wide operating temperature range and on/off logic control, which makes it an attractive solution for some applications.