Texas Instruments LM4130CIM5-4.1/NOPB

Overview

LM4130CIM5-4.1/NOPB from Texas Instruments is a precision micropower low-dropout voltage reference IC delivering 4.096 V output with ±0.1% initial accuracy, 20 ppm/°C temperature coefficient, and ≤75 μA supply current in SOT23-5 package. It operates from −40°C to +85°C with 275 mV dropout at 10 mA, enabling use in high-accuracy ADC/DAC biasing and portable instrumentation.

For engineers reviewing the LM4130CIM5-4.1/NOPB datasheet, LM4130CIM5-4.1/NOPB pinout, LM4130CIM5-4.1/NOPB application, or LM4130CIM5-4.1/NOPB equivalent, key selection criteria include initial voltage tolerance, tempco over industrial temperature range, load regulation (≤60 ppm/mA), dropout behavior under 10 mA load, and stability without output capacitor-critical for space-constrained battery-powered systems.

Technical Context

The LM4130CIM5-4.1/NOPB implements EEPROM-trimmed CMOS bandgap architecture to correct curvature, tempco, and accuracy post-assembly-enabling laser-trimmed performance in cost-effective plastic packaging. Its internal correction eliminates need for external trimming components or buffer amplifiers.

It functions as a series-connected shunt-independent reference: output can source up to 20 mA, requires no mandatory output capacitor (stable 0–100 µF), and maintains <1 Ω output impedance. Input bypass (0.1 µF) is recommended only for noisy supplies or dynamic load conditions.

Key Specifications

Pinout & Package

SOT23-5 surface-mount package with 1.6 mm × 2.9 mm footprint, 1.1 mm height, and gull-wing leads. RoHS-compliant, lead-free (NOPB suffix).

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 LM4130CIM5-4.1/NOPB uniquely balances ±0.1% accuracy, 20 ppm/°C tempco, ≤75 μA supply current, and capacitor-free stability in SOT23-5-making it optimal for industrial data acquisition where accuracy, power, and layout simplicity are jointly constrained.

Availability

LM4130CIM5-4.1/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, precision sensor interfaces, and automotive battery monitoring requiring stable component supply with verified long-term parametric consistency.

Supply support for LM4130CIM5-4.1/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 technologies for industrial, automotive, and communications markets.

The LM4130 family was designed as a cost-effective, high-accuracy alternative to laser-trimmed references-targeting portable, battery-powered, and space-constrained systems needing stable 2.5 V or 4.096 V references without external compensation.

FAQ

What is the guaranteed initial accuracy of LM4130CIM5-4.1/NOPB over temperature?

The LM4130CIM5-4.1/NOPB guarantees ±0.1% initial output voltage accuracy across the full industrial temperature range of −40°C to +85°C. This specification is ensured by production testing and statistical correlation per TI's SQC methods-not limited to 25°C only-and applies directly to the 4.096 V nominal output.

Does LM4130CIM5-4.1/NOPB require an output capacitor for stability?

No, the LM4130CIM5-4.1/NOPB is explicitly designed to operate stably without any output capacitor and remains stable with capacitive loads from 0 to 100 µF. An output capacitor is optional and used only to improve transient response-not for basic stability-making LM4130CIM5-4.1/NOPB ideal for minimalist, space-constrained designs.

What is the maximum load current LM4130CIM5-4.1/NOPB can source?

The LM4130CIM5-4.1/NOPB can continuously source up to 20 mA while maintaining output voltage regulation within its specified accuracy and dropout limits. This capability enables direct driving of ADC reference inputs, DAC bias networks, or low-power op-amp stages without external buffering.

How does the dropout voltage of LM4130CIM5-4.1/NOPB behave at 10 mA load?

At 10 mA load, the LM4130CIM5-4.1/NOPB exhibits a maximum dropout voltage of 275 mV-defined as the minimum VIN–VREF differential needed to maintain output voltage within 0.5% of nominal. This allows reliable operation from supplies as low as 4.371 V (4.096 V + 275 mV) while preserving full accuracy.

What do the 'C' and '4.1' in LM4130CIM5-4.1/NOPB signify?

In LM4130CIM5-4.1/NOPB, 'C' denotes the C-grade accuracy/tolerance bin (±0.1% initial accuracy, 20 ppm/°C tempco), 'IM5' specifies the SOT23-5 package, and '4.1' is TI's marking code for the 4.096 V output option-consistent with Table 1 in the datasheet where '04' maps to 4.096 V and 'C' maps to the C-grade characteristics.