Texas Instruments LM4130BIM5-4.1/NOPB

Overview

LM4130BIM5-4.1/NOPB from Texas Instruments is a precision micropower low-dropout voltage reference IC delivering 4.096 V output with ±0.2% initial accuracy, 10 ppm/°C temperature coefficient (0°C to +85°C), and ≤275 mV dropout at 10 mA load - used in high-resolution ADC/DAC biasing, portable instrumentation, and battery-powered data acquisition systems.

For engineers reviewing the LM4130BIM5-4.1/NOPB datasheet, LM4130BIM5-4.1/NOPB pinout, LM4130BIM5-4.1/NOPB application, or LM4130BIM5-4.1/NOPB equivalent, key selection criteria include guaranteed 4.096 V output stability across −40°C to +85°C, no required output capacitor, <1 Ω output impedance, and SOT23-5 package compatibility with space-constrained PCB layouts.

Technical Context

The LM4130BIM5-4.1/NOPB implements a CMOS bandgap architecture with EEPROM-based curvature, tempco, and accuracy correction - enabling laser-trimmed performance without laser trimming. Its internal topology eliminates need for external buffer amplifiers or mandatory output capacitance, even under dynamic 20 mA loads.

It operates as a series (two-terminal) reference with VIN-to-VREF differential as low as 275 mV, supports full accuracy over −40°C to +85°C, and maintains <150 μV_PP (0.1–10 Hz) noise at 4.096 V output - critical for 16-bit+ data converters requiring stable excitation or reference rails.

Key Specifications

Pinout & Package

SOT23-5 surface-mount package with 1.6 mm × 2.9 mm footprint, 1.1 mm height, and thermal resistance θ_J-A = 220°C/W - optimized for compact, thermally constrained layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision voltage reference applications.

Compared with REF3040AIDBZR and ADR3440ARJZ-R7, the LM4130BIM5-4.1/NOPB delivers best-in-class tempco (10 ppm/°C) at lowest quiescent current (75 μA) in a 5-pin SOT23 package - making it optimal for battery-powered, high-accuracy, wide-temperature applications where VIN bypassing and NC pin flexibility matter.

Availability

LM4130BIM5-4.1/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical data acquisition systems requiring stable component supply with long-term lifecycle visibility.

Supply support for LM4130BIM5-4.1/NOPB 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

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and logic ICs for industrial, automotive, and consumer markets.

The LM4130 product line delivers precision voltage references using EEPROM-trimmed CMOS bandgap technology - engineered for high-accuracy, low-power, and low-dropout operation in portable and space-constrained systems.

FAQ

What is the output voltage tolerance and temperature coefficient of LM4130BIM5-4.1/NOPB?

The LM4130BIM5-4.1/NOPB has an initial output voltage tolerance of ±0.2% at 25°C and a temperature coefficient of 10 ppm/°C over 0°C to +85°C. Its full accuracy specification applies across −40°C to +85°C, with extended functional operation up to +125°C. These values are confirmed in TI's SNVS048D datasheet, Table "LM4130-4.096 Electrical Characteristics".

Does LM4130BIM5-4.1/NOPB require an output capacitor for stability?

No, the LM4130BIM5-4.1/NOPB is designed to operate stably without any output capacitor and remains stable with capacitive loads from 0 µF to 100 µF. An optional output capacitor improves load transient response but is not required for stability - a key differentiator from many competing references that mandate minimum capacitance.

What is the maximum load current and dropout voltage specification for LM4130BIM5-4.1/NOPB?

The LM4130BIM5-4.1/NOPB supports up to 20 mA output current and specifies a maximum dropout voltage of 275 mV at 10 mA load. Dropout is defined as the minimum VIN–VREF differential needed to maintain output voltage within 0.5% of nominal - enabling reliable operation from supplies as low as 4.37 V.

Which pins of LM4130BIM5-4.1/NOPB are unused and how should they be handled?

Pins 1 and 3 of the LM4130BIM5-4.1/NOPB are marked NC (No Connection) and are internally terminated. Per TI's datasheet Pin Functions section, these pins must remain unconnected on the PCB - neither grounded nor tied to any other net - to avoid unintended electrical interaction or reliability risk.

How does LM4130BIM5-4.1/NOPB achieve high accuracy without laser trimming?

The LM4130BIM5-4.1/NOPB uses EEPROM registers to correct curvature, temperature coefficient, and initial accuracy errors post-assembly - compensating for plastic-package-induced shifts in CMOS bandgap performance. This architecture delivers laser-trimmed-grade accuracy (e.g., ±0.2% and 10 ppm/°C) using standard CMOS fabrication and package assembly, avoiding costly laser trim steps.