Texas Instruments TLV2217-25KVURG3

Overview

TLV2217-25KVURG3 from Texas Instruments is a fixed-output 2.5-V low-dropout linear voltage regulator using a PNP pass element, delivering up to 500 mA output current with ±1% initial accuracy at 25°C and ±2% variation across load and temperature. It features 500-mV maximum dropout at 500 mA, internal overcurrent/thermal/overvoltage protection, and operates from 3.0 V to 12 V input. It is used in medical devices, point-of-sale terminals, and set-top boxes requiring stable low-noise 2.5-V supply.

For engineers reviewing the TLV2217-25KVURG3 datasheet, TLV2217-25KVURG3 pinout, TLV2217-25KVURG3 application, or TLV2217-25KVURG3 equivalent, key selection factors include its TO-252 (KVU) package thermal performance (R_θJA = 31°C/W), 22-µF minimum output capacitor requirement with 0.4–2-Ω ESR, 500-µV output noise (10 Hz–100 kHz), and compatibility with tantalum/aluminum electrolytic capacitors.

Technical Context

The TLV2217-25KVURG3 employs a PNP-based LDO architecture enabling operation with only 0.5-V headroom (VI – VO), supporting regulation down to 3.0-V minimum input. Its internal protection circuitry includes foldback current limiting and thermal shutdown that automatically resets after fault removal.

Stability is achieved with output capacitors having 0.4–2-Ω ESR and ≥22 µF capacitance; input bypass requires 0.1 µF ceramic. The device is characterized for 0°C to 125°C virtual junction temperature and supports continuous 500-mA load under specified thermal conditions.

Key Specifications

Pinout & Package

TLV2217-25KVURG3 uses the TO-252 (KVU) 3-pin surface-mount package (6.04 mm × 6.15 mm body), with exposed thermal pad electrically connected to GND. The package supports high-power dissipation via PCB copper area connection to the heat sink terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2217-25KCS, TLV2217-25KVURG3 offers smaller SMT footprint and reflow-compatible assembly, while TPS76325QDBVRQ1 trades output current and thermal capability for automotive qualification and ultra-low IQ-neither is pin-compatible, requiring layout revision.

Availability

TLV2217-25KVURG3 is available at Aetrix Electronics and suitable for medical health monitors, point-of-sale terminals, and set-top box AV processing requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.

Supply support for TLV2217-25KVURG3 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 solutions, with leadership in power management ICs and precision analog components.

The TLV2217 family was designed specifically for low-voltage, high-current linear regulation in space-constrained consumer and industrial systems where reliability, thermal robustness, and capacitor flexibility are critical.

FAQ

What is the minimum input voltage required for TLV2217-25KVURG3 to maintain regulation?

The TLV2217-25KVURG3 requires a minimum input voltage of 3.0 V or (VO + 0.5 V) = 3.0 V, whichever is greater. This 0.5-V headroom enables regulation down to the specified dropout limit. Below this, output voltage drops linearly with input.

Can TLV2217-25KVURG3 be used with ceramic output capacitors?

No - TLV2217-25KVURG3 is designed for stability with tantalum or aluminum electrolytic capacitors having 0.4–2-Ω ESR. Ceramic capacitors typically have sub-10-mΩ ESR and will cause oscillation. A series resistor may be added to raise effective ESR, but TI does not characterize or guarantee performance with ceramics.

What thermal considerations apply to TLV2217-25KVURG3 in TO-252 package?

TLV2217-25KVURG3 in TO-252 has R_θJA = 31°C/W. At 500 mA and 125°C max junction temperature, maximum ambient is ~85°C with standard 1-in² 2-oz copper pour. The exposed thermal pad must be soldered to a GND plane for effective heat transfer; insufficient copper area increases thermal resistance.

Does TLV2217-25KVURG3 include reverse-polarity protection?

No - TLV2217-25KVURG3 lacks reverse-polarity protection. Applying negative voltage to INPUT or OUTPUT relative to GND can damage the device. External protection diodes or FET-based reverse-voltage circuits must be added if system-level polarity reversal is possible.

What is the recommended input capacitor for TLV2217-25KVURG3?

A 0.1-µF ceramic capacitor is required across INPUT and GND, placed as close as possible to the TLV2217-25KVURG3 pins. This stabilizes the input supply, especially when the regulator is remote from the main power source, and suppresses high-frequency noise that could affect regulation.