Nexperia USA Inc. NBM7100BBQX

Overview

NBM7100BBQX from Nexperia is a battery energy management IC that extends coin cell lifetime in ultra-low-power IoT sensors by decoupling burst loads from the primary battery via dual-stage DC-DC conversion and adaptive learning. It accepts 2.4–3.6 V LiMnO₂ input, delivers regulated 1.8–3.6 V output (VDH) with >200 mA pulse capability, and achieves up to 93% peak efficiency. Used in LoRaWAN® and NB-IoT sensor nodes where battery life exceeds 10 years.

For engineers reviewing the NBM7100BBQX datasheet, NBM7100BBQX pinout, NBM7100BBQX application, or NBM7100BBQX equivalent, this page provides verified functional context, SPI interface timing, VDH load regulation behavior, thermal resistance (R_ΘJA = 82 K/W), and validated alternative selection guidance for battery-constrained edge devices.

Technical Context

The NBM7100BBQX implements a two-stage energy transfer architecture: first stage charges an external storage capacitor (CAP) from the battery (VBT) at programmable constant current (2–16 mA); second stage boosts stored energy to deliver high-current pulses on VDH while maintaining tight regulation (±1% load regulation). Its proprietary learning algorithm minimizes residual charge in CAP across repetitive load cycles.

It uses SPI (CSN/SDI/SDO/SCLK) for configuration and status readback, supports no-load detection (100 µA threshold, 20 ms timeout), and features dual regulated outputs - VDH (programmable, high-pulse) and VDP (permanent, low-noise, 20–30 Ω output impedance). Operation is specified from −40 °C to +85 °C.

Key Specifications

Pinout & Package

DHVQFN16 package (SOT763-1), 2.5 mm × 3.5 mm × 0.85 mm, lead-free, thermal pad exposed on underside for PCB heatsinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar battery energy management applications.

Compared with MAX17048 and TPS61291, the NBM7100BBQX uniquely combines fuel gauging, dual-stage conversion, and learning-based capacitor optimization - delivering up to 2.3× longer battery life in pulsed IoT loads while occupying 40% less PCB area than discrete boost + gauge solutions.

Availability

NBM7100BBQX is available at Aetrix Electronics and suitable for LoRaWAN® end nodes, NB-IoT asset trackers, electronic shelf labels, and wireless temperature monitors requiring stable component supply across multi-year production cycles.

Supply support for NBM7100BBQX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

The NBM7100 series belongs to Nexperia's battery life extension product line, engineered specifically to overcome voltage droop and capacity loss in primary-cell-powered IoT edge devices operating under intermittent high-pulse loads.

FAQ

What is the minimum battery voltage required to initiate operation?

The NBM7100BBQX features a power-on-reset (POR) circuit that activates at 1.3 V minimum across −40 °C to +85 °C. At 25 °C, startup occurs reliably above 1.3 V, allowing full utilization of LiMnO₂ coin cells down to end-of-life voltage without premature shutdown.

How does the learning algorithm improve battery longevity?

The learning algorithm observes repetitive load patterns and dynamically adjusts the first-stage charge current to minimize residual voltage on the storage capacitor after each discharge cycle. This reduces wasted energy and increases usable mAh per battery by up to 22% compared to fixed-charge implementations.

Can the NBM7100BBQX support both 1.8 V and 3.3 V MCUs simultaneously?

Yes - VDH is independently programmable from 1.8 V to 3.6 V for the main processor or RF IC, while VDP provides a separate permanent 1.8 V or 3.3 V rail (depending on configuration) for always-on peripherals like RTCs or comparators, eliminating need for additional LDOs.

What is the recommended external storage capacitor value?

Nexperia specifies 4.7 µF to 470 µF for the CAP pin, with 100 µF ceramic (X7R, 16 V) being optimal for most IoT applications. Larger values extend burst duration but increase start-up time; smaller values reduce size but limit peak current hold time to <5 ms at 200 mA.