Texas Instruments TLV62568PDRLT

Overview

TLV62568PDRLT from Texas Instruments is a 1-A synchronous step-down buck DC-DC converter in SOT563-6 package, featuring 2.5–5.5 V input range, adjustable 0.6–VIN output, 1.5-MHz fixed-frequency PWM operation, Power Save Mode for light loads, and integrated power good (PG) output. It delivers up to 95% efficiency at 1.8 V/1 A output and is used in compact point-of-load supplies for network cameras and set-top boxes.

For engineers reviewing the TLV62568PDRLT datasheet, TLV62568PDRLT pinout, TLV62568PDRLT application, or TLV62568PDRLT equivalent, key selection criteria include its 1.5-MHz switching frequency, 35-µA quiescent current, 100% duty cycle low-dropout capability, PG open-drain output with 95%/90% thresholds, and thermal shutdown at 150°C - all validated for SOT563 packaging and 1-A continuous load.

Technical Context

The TLV62568PDRLT employs adaptive off-time peak-current control to maintain stable 1.5-MHz switching across input (2.5–5.5 V), output (0.6–VIN), and load (0–1 A) variations. Its internal high-side (150 mΩ) and low-side (100 mΩ) MOSFETs enable synchronous rectification without external diodes.

It operates in PWM mode at medium-to-heavy loads and automatically transitions to Power Save Mode at light loads to sustain >85% efficiency down to 10 mA. The PG pin provides open-drain status signaling referenced to FB voltage, with 40-µs delay and 1-mA sink capability - exclusive to TLV62568P variants like TLV62568PDRLT.

Key Specifications

Pinout & Package

SOT563-6 package (1.60 mm × 1.60 mm, 0.55-mm pitch) with wettable flanks for automated optical inspection. Thermal resistance: R_θJA = 149.8°C/W, R_θJB = 31.1°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous buck converter applications.

Compared with TLV62568PDRLT, TLV62569PDRLT offers scalable current capacity with identical pinout and feature set, while TPS62865DRLR trades PG functionality and thermal robustness for minimal size - making TLV62568PDRLT optimal for cost-sensitive, PG-dependent industrial POL applications.

Availability

TLV62568PDRLT is available at Aetrix Electronics and suitable for network video camera power supplies, set-top box SoC core rails, and wireless router I/O regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TLV62568PDRLT 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 power management ICs for industrial, automotive, and consumer markets.

The TLV62568PDRLT belongs to TI's TLV6256x family of high-efficiency synchronous buck converters designed for space-constrained, battery-aware, and thermally demanding point-of-load applications.

FAQ

What is the maximum continuous output current of the TLV62568PDRLT?

The TLV62568PDRLT delivers 1 A continuous output current under recommended operating conditions (T_J ≤ 125°C, proper PCB thermal design). Its overcurrent protection triggers at 1.5 A peak, and thermal shutdown activates at 150°C junction temperature to prevent damage during sustained overload.

Does the TLV62568PDRLT support adjustable output voltage?

Yes, the TLV62568PDRLT supports adjustable output voltage from 0.6 V to VIN using an external resistor divider connected to the FB pin. The internal reference is 0.6 V ±2%, enabling precise regulation - for example, 1.8 V output uses R1 = 200 kΩ and R2 = 100 kΩ per the datasheet design equation.

What is the function of the PG pin on the TLV62568PDRLT?

The PG (Power Good) pin on the TLV62568PDRLT is an open-drain output that signals valid regulation: it goes high-impedance when V_OUT ≥ 95% of target and pulls low when V_OUT ≤ 90%. It sinks up to 1 mA and requires an external pull-up resistor to ≤5.5 V - used for system power sequencing and fault detection in the TLV62568PDRLT design.

Can the TLV62568PDRLT start up into a pre-biased output capacitor?

Yes, the TLV62568PDRLT supports pre-biased start-up: it safely ramps the output voltage from an existing bias without forcing reverse current through the output capacitor. This capability is confirmed in the datasheet's Detailed Description section and is essential for hot-swap and multi-rail sequencing applications using the TLV62568PDRLT.

What package type and dimensions does the TLV62568PDRLT use?

The TLV62568PDRLT uses the SOT563-6 package: 1.60 mm × 1.60 mm body size, 0.55-mm lead pitch, and wettable flank terminals. Its thermal metrics include R_θJA = 149.8°C/W and R_θJB = 31.1°C/W - optimized for compact layouts with bottom-side copper thermal relief in the TLV62568PDRLT implementation.