Nexperia USA Inc. NBM7100ABQX

Overview

NBM7100ABQX from Nexperia is a coin cell battery life booster IC that extends operational lifetime of 3 V LiMnO₂ primary batteries in ultra-low-power IoT sensor nodes by decoupling burst load demands from the battery via dual-stage DC-DC conversion and adaptive energy learning. It delivers >200 mA pulsed output at programmable 1.8–3.6 V on VDH, maintains <±1% load regulation, achieves up to 93% peak conversion efficiency, and operates across −40 °C to +85 °C in wireless asset tracking systems.

For engineers reviewing the NBM7100ABQX datasheet, NBM7100ABQX pinout, NBM7100ABQX application, or NBM7100ABQX equivalent, this page provides verified technical context for integrating the device into battery-constrained designs requiring high pulse current capability without voltage sag, precise low-quiescent operation, and I²C-configurable output settings.

Technical Context

The NBM7100ABQX implements a two-stage architecture: first-stage constant-current charging of an external storage capacitor (CAP) from the battery (VBT), followed by second-stage regulated boost conversion to VDH using stored energy - isolating the battery from pulse loads. Its proprietary learning algorithm monitors repetitive load cycles and minimizes residual charge in CAP to maximize usable energy extraction.

It supports I²C interface (NBM7100A variant), features integrated fuel gauge, programmable battery load current (2–16 mA), ultra-low 20 nA standby current, and dual regulated outputs: VDH (programmable, high-pulse) and VDP (permanent, low-noise). The RDY pin signals early warning before output droop.

Key Specifications

Pinout & Package

Package: DHVQFN16 (SOT763-1), 2.5 mm × 3.5 mm × 0.85 mm, lead-free, thermal-enhanced quad flat no-lead with exposed pad (connected to VSS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar battery life extension applications.

Compared with MAX17048 and BQ25504, the NBM7100ABQX uniquely combines programmable VDH regulation, adaptive CAP charge optimization, and early-warning RDY signaling - making it the only solution capable of extending CR2032 life beyond 7 years in BLE/NB-IoT sensor nodes with sub-1% duty cycle.

Availability

NBM7100ABQX is available at Aetrix Electronics and suitable for asset tracking, smart metering, electronic shelf label, and wearable health monitor applications requiring stable component supply and long-term lifecycle support.

Supply support for NBM7100ABQX 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 energy management product line, engineered specifically to overcome voltage sag and capacity loss in primary-battery-powered IoT edge devices with intermittent high-current demands.

FAQ

What is the function of the RDY pin?

The RDY pin is an open-drain status output that pulses for 2.6–6.5 µs when the internal storage capacitor (CAP) voltage drops below the threshold required to sustain regulated VDH output. This early-warning signal allows the host MCU to initiate load reduction or enter low-power mode before brown-out occurs, preventing system reset or data loss during RF transmission or sensor sampling.

Can NBM7100ABQX operate with alkaline or silver-oxide batteries?

No - the NBM7100ABQX is specifically optimized for 3 V lithium manganese dioxide (LiMnO₂) coin cells such as CR2032. Its POR threshold (1.3–2.7 V), charge current profile (2–16 mA), and VBT input range (2.4–3.6 V) are calibrated for LiMnO₂ discharge characteristics. Alkaline and silver-oxide cells exhibit different voltage curves, internal resistance, and end-of-life behavior, which may cause premature shutdown or inefficient energy extraction.

How does the adaptive learning algorithm improve battery life?

The algorithm observes the timing and amplitude of repetitive load pulses, then dynamically adjusts the first-stage charge current to minimize residual voltage on the external storage capacitor (CAP) after each discharge cycle. By reducing wasted energy left in CAP, more total charge is extracted from the battery - increasing usable capacity by up to 30% versus fixed-charge schemes, especially in applications with predictable burst intervals like hourly metering or periodic BLE beacons.

What external components are mandatory for basic operation?

Mandatory components include: one 15 µH coupled inductor (LX1/LX2), one 4.7–470 µF storage capacitor (CAP), one 22 µF output capacitor on VDH, one 1 µF bypass capacitor on VBT, and one 1 µF capacitor on VDP. Optional but recommended: 10 µF capacitor on VDP and 1 µF capacitor on VDHS for enhanced stability. All capacitors must be X7R ceramic rated for ≥10 V.