Texas Instruments TLV75728PDRVR

Overview

TLV75728PDRVR from Texas Instruments is a 1A, low-quiescent-current (25μA typical), fixed 2.8V output low-dropout regulator in a 2mm × 2mm WSON-6 (DRV) package with exposed thermal pad. It operates from 1.45V to 5.5V input, delivers ±1% output accuracy over –40°C to +125°C, and supports stable regulation with only 1µF ceramic output capacitance - ideal for powering MCU core rails in space-constrained portable electronics.

For engineers reviewing the TLV75728PDRVR datasheet, TLV75728PDRVR pinout, TLV75728PDRVR application, or TLV75728PDRVR equivalent, key selection criteria include dropout voltage at 1A (max 425mV @ 3.3VOUT, scaled per VOUT), active output discharge, foldback current limiting, and thermal performance enabled by the DRV package's 64.3°C/W RθJB.

Technical Context

The TLV75728PDRVR uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (46dB @ 100kHz). Its internal bandgap reference and error amplifier deliver 1% output accuracy across temperature and load, while integrated UVLO (1.21–1.44V rising threshold) prevents erratic startup under marginal input conditions.

Functional modes include normal regulation, dropout (where VOUT tracks VIN), and shutdown with active pulldown via internal 120Ω switch. Soft-start ensures monotonic VOUT rise and limits inrush current; foldback current limit reduces thermal stress during short-circuit events without requiring external components.

Key Specifications

Pinout & Package

TLV75728PDRVR is packaged in a 2mm × 2mm WSON-6 (DRV) with exposed thermal pad, offering 64.3°C/W junction-to-board thermal resistance - significantly lower than SOT-23-5 variants - enabling higher power delivery in compact layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A0528PDBVR, TLV75728PDRVR delivers 5× higher output current and superior thermal management in half the footprint height, while adding active discharge and foldback protection - making it suitable for next-generation portable and industrial edge nodes where reliability and density are critical.

Availability

TLV75728PDRVR is available at Aetrix Electronics and suitable for portable medical devices, USB peripherals, industrial sensor nodes, and white goods control boards requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV75728PDRVR 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 connectivity technologies, with decades of LDO design expertise and broad automotive/industrial qualification.

The TLV757P family was engineered for ultra-small, high-efficiency power delivery in battery-powered and space-constrained systems - emphasizing low IQ, fast transient response, and minimal external component count.

FAQ

What is the maximum input voltage for TLV75728PDRVR?

The absolute maximum input voltage for TLV75728PDRVR is 6.0V, but the recommended operating range is 1.45V to 5.5V. Exceeding 5.5V may trigger internal protection circuits or degrade long-term reliability. Operation at 5.5V is fully supported across temperature and load conditions per TI's SBVS322C datasheet.

Does TLV75728PDRVR require an input capacitor?

Yes, TLV75728PDRVR requires a minimum 1µF ceramic capacitor between IN and GND, placed as close as possible to the device. This capacitor stabilizes the input impedance, suppresses high-frequency noise, and prevents oscillation during load transients - omission risks instability or erratic enable behavior.

Can TLV75728PDRVR be used without connecting the thermal pad?

No - the exposed thermal pad on TLV75728PDRVR (DRV package) is internally connected to GND and must be soldered to a large PCB ground plane. Omitting this connection raises junction temperature by >40°C at 1A load, risking premature thermal shutdown and violating SOA limits per TI's thermal metrics table.

What is the dropout voltage of TLV75728PDRVR at 1A load?

At 1A load and TJ = –40°C to +85°C, TLV75728PDRVR has a maximum dropout voltage of 375mV for 2.8V output (derived from interpolation of Table 5-5 data for 2.5V ≤ VOUT < 3.3V, DYD package value scaled for DRV thermal performance). This enables operation from 3.175V input minimum under worst-case conditions.

Is TLV75728PDRVR compatible with 1.8V GPIO enable signals?

Yes - TLV75728PDRVR's EN pin has VHI = 1.0V (min) and VLO = 0.3V (max), making it fully compatible with 1.8V CMOS logic. A 1.8V GPIO can directly drive EN without level shifting, and the EN pin draws only 10nA typical current, minimizing driver loading.