Texas Instruments LM4132AMF-3.0/NOPB

Overview

LM4132AMF-3.0/NOPB from Texas Instruments is a precision low-dropout (LDO) series voltage reference IC delivering a stable 3.0 V output with 0.05% initial accuracy, 10 ppm/°C temperature coefficient (0°C to 85°C), and 60 µA quiescent current. It operates from VIN = VREF + 400 mV to 5.5 V, supports up to 20 mA load, and features an enable pin for 3 µA shutdown mode-ideal for battery-powered instrumentation and portable data acquisition systems.

For engineers reviewing the LM4132AMF-3.0/NOPB datasheet, LM4132AMF-3.0/NOPB pinout, LM4132AMF-3.0/NOPB application, or LM4132AMF-3.0/NOPB equivalent, key selection criteria include dropout voltage at 10 mA (175 mV typ), line regulation (70 ppm/V), load regulation (25 ppm/mA), thermal hysteresis (75 ppm), and SOT-23-5 package compatibility in space-constrained designs.

Technical Context

The LM4132AMF-3.0/NOPB uses EEPROM-trimmed CMOS band-gap architecture to achieve laser-trimmed bipolar-level precision without requiring external output capacitance or buffer amplifiers. Its curvature, tempco, and accuracy are corrected at package level to mitigate assembly-induced shifts.

It implements a series topology with integrated enable logic, supporting three operational modes: active (VIN ≥ VREF + 400 mV, EN high), shutdown (EN low, IQ = 3 µA), and disabled output (EN low, VREF high-impedance). Dropout is defined as the minimum VIN–VREF differential causing 0.5% output deviation.

Key Specifications

Pinout & Package

SOT-23-5 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with REF3030AIDBZR and ADR3430ARJZ-R7, the LM4132AMF-3.0/NOPB uniquely combines A-grade 0.05% accuracy, 10 ppm/°C tempco, enable-controlled 3 µA shutdown, and capacitor-free operation in the same SOT-23-5 footprint-making it optimal for high-precision, low-power, and space-constrained designs where dynamic power management is required.

Availability

LM4132AMF-3.0/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, automotive sensor modules, and industrial process controllers requiring stable component supply with guaranteed long-term availability and traceable sourcing.

Supply support for LM4132AMF-3.0/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 specializing in analog and embedded processing technologies, with leadership in precision analog ICs and automotive-qualified components.

The LM4132 product line delivers high-accuracy, low-drift voltage references using EEPROM-trimmed CMOS architecture-designed specifically for instrumentation, test equipment, and battery-powered systems demanding laser-trimmed performance at CMOS cost and size.

FAQ

What is the maximum input voltage for LM4132AMF-3.0/NOPB?

The absolute maximum input voltage for LM4132AMF-3.0/NOPB is 6 V, but the recommended maximum operating input is 5.5 V. Operation above VREF + 400 mV (i.e., ≥3.4 V) is required for regulation; exceeding 5.5 V risks permanent damage per Absolute Maximum Ratings. The LM4132AMF-3.0/NOPB must be operated within this range to ensure reliability and specified performance.

Does LM4132AMF-3.0/NOPB require an output capacitor?

No, LM4132AMF-3.0/NOPB does not require an output capacitor for stability-it is designed to operate reliably with no COUT. A ceramic input capacitor (CIN) is mandatory per datasheet. Adding COUT may improve noise performance but is optional and not needed for loop stability. This eliminates layout constraints and simplifies design compared to most references requiring 1–10 µF output capacitance.

What is the thermal hysteresis specification for LM4132AMF-3.0/NOPB?

The thermal hysteresis for LM4132AMF-3.0/NOPB is 75 ppm, defined as the change in 25°C output voltage before and after cycling the device from –40°C to +125°C. This value applies across all grades and reflects repeatability of the reference after thermal stress. The LM4132AMF-3.0/NOPB maintains this spec without recalibration, supporting applications requiring repeatable measurements after environmental cycling.

Can LM4132AMF-3.0/NOPB drive a 20 mA load continuously?

Yes, LM4132AMF-3.0/NOPB is rated for continuous 20 mA output current per Recommended Operating Conditions. At 10 mA load, dropout is 175 mV typ; at 20 mA, junction temperature rise must be monitored-RθJA = 164.1°C/W limits safe operation to ≤125°C TJ. With proper PCB copper area, the LM4132AMF-3.0/NOPB sustains full 20 mA in ambient temperatures up to 85°C.

Is LM4132AMF-3.0/NOPB qualified for automotive applications?

No-LM4132AMF-3.0/NOPB is not automotive-qualified. It belongs to the commercial LM4132 family. For automotive use, TI offers the LM4132-Q1 variants (e.g., LM4132Q30IDBVRQ1), which are AEC-Q100 Grade 1 qualified (–40°C to +125°C) and undergo additional stress testing. The LM4132AMF-3.0/NOPB is intended for industrial, medical, and portable instrumentation-not safety-critical automotive ECUs.