Texas Instruments TLV75510PDRVR

Overview

TLV75510PDRVR from Texas Instruments is a 1.0V fixed-output, 500mA low-dropout linear regulator (LDO) in a 5-pin SOT-23-5 (DBV) package. It operates from 1.45V to 5.5V input, delivers ±1% output accuracy at 85°C, features 25μA typical quiescent current, and maintains regulation with only 238mV dropout at 500mA - enabling efficient power delivery in space-constrained battery-powered systems.

For engineers reviewing the TLV75510PDRVR datasheet, TLV75510PDRVR pinout, TLV75510PDRVR application, or TLV75510PDRVR equivalent, key selection criteria include its ultra-low IQ for standby power optimization, active output discharge for known startup states, foldback current limiting for short-circuit robustness, and stability with 1μF ceramic output capacitors - all critical for portable MCU core rail and sensor biasing designs.

Technical Context

The TLV75510PDRVR uses a PMOS pass transistor architecture enabling low dropout and high PSRR (46dB at 100kHz). Its internal bandgap reference and error amplifier deliver 1% output accuracy across –40°C to +85°C, while integrated UVLO (1.21–1.44V threshold) and thermal shutdown (165°C trip) ensure safe operation under brownout or overload conditions.

Functional modes include normal regulation (VIN ≥ VOUT + VDO), dropout (VIN < VOUT + VDO, output tracks input), and disabled state (EN < 0.3V), where an internal 120Ω pulldown actively discharges the output. Soft-start ensures monotonic VOUT rise, minimizing inrush current and input voltage sag during startup.

Key Specifications

Pinout & Package

TLV75510PDRVR is housed in a 2.9mm × 2.8mm SOT-23-5 (DBV) package with standard pinout and no exposed thermal pad. The package supports reflow soldering and fits high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC75510QDCKR and MCP1755-1002E/DB, TLV75510PDRVR uniquely combines 500mA capability, active output discharge, foldback current limiting, and 46dB PSRR in a thermally optimized SOT-23-5 - making it the preferred choice for high-reliability, space-constrained portable and industrial LDO applications.

Availability

TLV75510PDRVR is available at Aetrix Electronics and suitable for portable medical devices, camera modules, IoT sensor nodes, and industrial control interfaces requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TLV75510PDRVR 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 technologies, with decades of LDO design expertise and broad industrial qualification coverage.

The TLV755P family was engineered for ultra-small, low-IQ power delivery in battery-powered and space-constrained systems - targeting core voltage regulation for MCUs, sensors, and imaging devices where efficiency, size, and reliability are critical.

FAQ

What is the maximum dropout voltage specification for TLV75510PDRVR at full 500mA load?

The TLV75510PDRVR has a maximum dropout voltage of 950mV at 500mA and +85°C, as specified for 1.0V output variants in the DBV package. This value ensures reliable regulation from input voltages as low as 1.95V under worst-case thermal and load conditions - critical for maintaining operation near end-of-life battery voltage.

Does TLV75510PDRVR require an external pull-up resistor on the EN pin?

No, TLV75510PDRVR does not require an external pull-up on EN. It features an internal pulldown resistor (120Ω) that ensures default disable state when EN is unconnected. To enable the device, drive EN to >1V; for permanent enable, tie EN directly to IN - no external components needed.

Can TLV75510PDRVR operate with a 0.47μF output capacitor?

Yes, TLV75510PDRVR is stable with ≥0.47μF ceramic output capacitance, though the datasheet recommends ≥1μF for optimal transient response and margin. Using 0.47μF meets minimum stability requirements but may reduce load step immunity - verify performance under worst-case load transients in final design.

What protection features are integrated into TLV75510PDRVR?

TLV75510PDRVR integrates thermal shutdown (165°C trip), undervoltage lockout (UVLO with 1.21–1.44V threshold), foldback current limiting, and active output discharge. These features collectively prevent damage during overloads, input brownouts, shorts, and thermal runaway - eliminating need for external protection circuitry.

Is TLV75510PDRVR pin-compatible with other TLV755P variants like TLV75533PDRVR?

Yes, TLV75510PDRVR shares identical SOT-23-5 (DBV) pinout and footprint with all TLV755P fixed-output variants including TLV75533PDRVR. Pin functions (IN, GND, EN, NC, OUT) and package dimensions (2.9mm × 2.8mm) are fully consistent - enabling drop-in voltage replacement without PCB changes.