Texas Instruments LM4130AIM5-4.1/NOPB

Overview

LM4130AIM5-4.1/NOPB from Texas Instruments is a precision micropower low-dropout voltage reference IC delivering 4.096 V output with ±0.05% initial accuracy, 10 ppm/°C temperature coefficient, and ≤275 mV dropout at 10 mA - designed for high-accuracy analog signal chains in portable instrumentation and battery-powered data acquisition systems.

For engineers reviewing the LM4130AIM5-4.1/NOPB datasheet, LM4130AIM5-4.1/NOPB pinout, LM4130AIM5-4.1/NOPB application, or LM4130AIM5-4.1/NOPB equivalent, key selection criteria include guaranteed full-accuracy operation from −40°C to +85°C, stability with 0–100 µF capacitive loads, and ultra-low 75 µA supply current enabling multi-year battery life in remote sensing nodes.

Technical Context

The LM4130AIM5-4.1/NOPB uses EEPROM-trimmed CMOS bandgap architecture to correct curvature, tempco, and initial accuracy at package level - eliminating post-assembly calibration. Its LDO topology enables regulation with VIN as low as VREF + 275 mV while maintaining 0.05% accuracy across temperature.

No output capacitor is required for stability, and internal design supports direct drive of 20 mA loads with <1 Ω output impedance. Pin 5 delivers the 4.096 V reference; Pins 1 and 3 are internally terminated no-connects, simplifying layout and reducing noise susceptibility.

Key Specifications

Pinout & Package

SOT-23-5 surface-mount package (2.92 mm × 1.6 mm × 1.1 mm), tape-and-reel packaging per JEDEC J-STD-020 moisture sensitivity level 1.

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 LM4130AIM5-4.1/NOPB uniquely combines 0.05% accuracy, 10 ppm/°C tempco, and 75 µA IQ in a 5-pin SOT23 - enabling highest-precision, lowest-power operation where reference-induced error must stay below 1 LSB in 16-bit systems.

Availability

LM4130AIM5-4.1/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and medical sensor modules requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for LM4130AIM5-4.1/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, specializing in analog, embedded processing, and digital signal processing technologies.

The LM4130 family was engineered to deliver laser-trimmed bipolar reference performance in cost-effective CMOS technology - targeting high-accuracy, low-power applications in portable, industrial, and automotive electronics.

FAQ

What is the maximum load current supported by the LM4130AIM5-4.1/NOPB?

The LM4130AIM5-4.1/NOPB can source up to 20 mA continuously while maintaining its specified 4.096 V output accuracy and stability. This capability allows direct driving of ADC reference inputs, op-amp bias networks, and small DACs without external buffering - verified across −40°C to +85°C with <1 Ω output impedance.

Does the LM4130AIM5-4.1/NOPB require an output capacitor for stability?

No, the LM4130AIM5-4.1/NOPB is inherently stable with zero output capacitance and remains stable with capacitive loads up to 100 µF. An output capacitor is optional and used only to improve load transient response - it does not affect loop stability or require compensation components, simplifying design for space-constrained applications.

What is the minimum input voltage required for the LM4130AIM5-4.1/NOPB to maintain regulation?

The LM4130AIM5-4.1/NOPB requires a minimum input-to-output differential of 275 mV at 10 mA load to maintain regulation - meaning VIN must be ≥4.371 V (4.096 V + 0.275 V). At lighter loads, dropout decreases further, enabling operation from 3.3 V rails with appropriate headroom in low-current configurations.

How does the EEPROM trimming in the LM4130AIM5-4.1/NOPB improve performance over standard bandgap references?

The LM4130AIM5-4.1/NOPB uses on-chip EEPROM registers to correct curvature, temperature coefficient, and initial accuracy after plastic packaging - compensating for mechanical stress-induced shifts that degrade laser-trimmed references. This enables 0.05% accuracy and 10 ppm/°C tempco without costly hermetic packaging or post-assembly calibration.

Is the LM4130AIM5-4.1/NOPB suitable for automotive applications?

Yes, the LM4130AIM5-4.1/NOPB is qualified for operation from −40°C to +85°C with full 0.05% accuracy and 10 ppm/°C tempco - meeting requirements for non-safety-critical automotive cabin electronics such as HVAC sensors, infotainment power management, and body control modules. It is not AEC-Q200 qualified but widely deployed in automotive Tier-2 subsystems.