Texas Instruments TLV70436DBVRM3

Overview

TLV70436DBVRM3 from Texas Instruments is a 3.6-V fixed-output, 150-mA, low-dropout linear regulator with 3.4-μA typical quiescent current, 2.5–24-V input range, and stable operation with ≥0.47-μF output capacitance. It delivers precision voltage regulation for ultra-low-power microcontrollers in battery-powered industrial sensors and smart metering systems.

For engineers reviewing the TLV70436DBVRM3 datasheet, TLV70436DBVRM3 pinout, TLV70436DBVRM3 application, or TLV70436DBVRM3 equivalent, key selection criteria include dropout voltage at 100 mA (850 mV typ), thermal performance in SOT-23-5 (R_θJA = 170.8°C/W), overcurrent protection threshold (160–500 mA), and junction temperature range (–40°C to +125°C).

Technical Context

The TLV70436DBVRM3 implements a CMOS-based LDO architecture with internal bandgap reference, leakage-null control circuit active below 5 μA load, and brick-wall overcurrent protection. Its pass transistor operates in saturation during regulation and transitions to ohmic region in dropout mode, where V_OUT tracks V_IN with degraded transient response.

It features an integrated soft-start to limit inrush current into the output capacitor and maintains stable regulation across –40°C to +125°C junction temperature with no external compensation required. The device supports unconditioned input sources such as solar panels due to its 24-V max operating input and robust line/load regulation.

Key Specifications

Pinout & Package

TLV70436DBVRM3 is housed in a 2.90-mm × 1.60-mm, 5-pin SOT-23 (DBV) package optimized for space-constrained PCB layouts and cost-effective assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with TPS70936DBVR and MCP1703T-3602E/MB, TLV70436DBVRM3 offers superior 24-V operational input range and wider temperature-rated IQ stability, making it optimal for industrial and utility-grade battery systems where input transients and extended thermal margins are critical.

Availability

TLV70436DBVRM3 is available at Aetrix Electronics and suitable for smart utility meters, wireless sensor nodes, industrial PLC I/O modules, and medical wearables requiring stable component supply across multi-year production lifecycles.

Supply support for TLV70436DBVRM3 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 leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability power solutions.

The TLV704 family was designed specifically for ultra-low-power, wide-input industrial and battery-powered applications-emphasizing quiescent current optimization, thermal robustness, and ease of integration in space-constrained designs.

FAQ

What is the maximum input voltage rating for TLV70436DBVRM3?

The TLV70436DBVRM3 has an absolute maximum input voltage of 30 V for the new chip revision (M3), while the recommended operating maximum remains 24 V. Exceeding 24 V continuously may impact long-term reliability, though transient spikes up to 30 V are tolerated per datasheet specifications. Always verify the specific chip revision on the device marking or TI's official orderable addendum.

Does TLV70436DBVRM3 require an input capacitor?

TLV70436DBVRM3 does not require an input capacitor for stability, but Texas Instruments recommends a minimum 0.047-μF ceramic capacitor from IN to GND to suppress high-frequency ringing caused by source inductance-especially during load transients. This improves system-level noise immunity without affecting LDO loop stability, which depends solely on the output capacitor.

What is the dropout voltage of TLV70436DBVRM3 at 100 mA load?

The dropout voltage of TLV70436DBVRM3 is 850 mV typical at 100 mA load and 25°C junction temperature. At higher temperatures or lower loads, dropout decreases-for example, it drops to ~400 mV at 50 mA and ~75 mV at 10 mA. This behavior reflects the R_DS(ON)-based pass transistor design, where V_DO scales linearly with output current.

Can TLV70436DBVRM3 be used with a 0.47-μF output capacitor?

Yes-TLV70436DBVRM3 is explicitly stable with any output capacitor ≥0.47 μF, including low-ESR ceramic types. The datasheet specifies this minimum effective capacitance after derating (e.g., a 1-μF nominal X7R capacitor derated by 50% yields 0.5 μF effective). Using exactly 0.47 μF is acceptable if the capacitor's actual capacitance at bias and temperature meets or exceeds that value.

How does the leakage null control circuit affect TLV70436DBVRM3 performance?

The leakage null control circuit in TLV70436DBVRM3 actively reduces ground current when output load falls below ~5 μA, VIN exceeds 18 V, and junction temperature rises above 100°C. It ensures ground current remains ≤4.5 μA even under these extreme conditions-preserving battery life in high-voltage, high-temperature standby scenarios where passive leakage would otherwise dominate.