Texas Instruments TLV62569ADRLT

Overview

TLV62569ADRLT from Texas Instruments is a synchronous step-down DC-DC converter delivering up to 2 A output current at 1.8 V, operating from 2.5 V to 5.5 V input, with 1.5-MHz fixed-frequency PWM control and forced-PWM mode for low output ripple. It integrates 100 mΩ high-side and 60 mΩ low-side MOSFETs and supports 100% duty cycle for ultra-low dropout in portable power rails.

For engineers reviewing the TLV62569ADRLT datasheet, TLV62569ADRLT pinout, TLV62569ADRLT application, or TLV62569ADRLT equivalent, key selection considerations include its SOT563 package footprint, 0.6 V feedback reference, thermal shutdown (150 °C), soft-start time (0.9 ms), and absence of power-good output - distinguishing it from the TLV62569APDRL variant.

Technical Context

The TLV62569ADRLT uses peak-current-mode control with adaptive off-time to maintain stable 1.5-MHz switching across input (2.5–5.5 V), output (0.6–VIN), and load (0–2 A) variations. Its internal 0.6 V reference enables precise output regulation via external resistor divider, and 100% duty-cycle operation minimizes dropout under high-load/low-VIN conditions.

It features integrated overcurrent protection (3 A switch current limit), UVLO (2.45 V nominal with 100 mV hysteresis), and thermal shutdown (150 °C rising / 130 °C falling). Shutdown current is <2 µA, and EN logic interface accepts 1.2 V VIH and 0.4 V VIL thresholds - compatible with standard CMOS I/O.

Key Specifications

Pinout & Package

SOT563-6 package (1.60 mm × 1.60 mm, 0.55 mm height), thermally enhanced with exposed pad (DRL suffix). Pin 6 is NC (no connection) - may be floated, grounded, or connected to VOUT for improved thermal performance per TI datasheet guidance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV62569APDRL, TLV62569ADRLT removes PG functionality to reduce cost and simplify layout, while retaining identical regulation, efficiency, and thermal performance. Against TPS6286901RQYR, TLV62569ADRLT provides adjustable output and superior thermal dissipation - critical for sustained 2 A loads in industrial ambient temperatures.

Availability

TLV62569ADRLT is available at Aetrix Electronics and suitable for IP network cameras, wireless routers, SSD controllers, and STB/DVR FPGA power rails requiring stable component supply, long-term manufacturability, and automotive-grade reliability screening.

Supply support for TLV62569ADRLT 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 over 90 years of innovation in high-reliability power conversion ICs.

The TLV62569ADRLT belongs to TI's TLV6256x family of high-efficiency, small-footprint synchronous buck converters designed for portable, space-constrained, and thermally sensitive applications including consumer, industrial, and networking equipment.

FAQ

What is the maximum output current capability of the TLV62569ADRLT?

The TLV62569ADRLT delivers up to 2 A continuous output current at 1.8 V with 5 V input and proper thermal design. Its internal switch current limit is 3 A, providing headroom for transient surges. Derating applies above 85 °C ambient; consult TI's thermal metrics (RθJA = 142.8 °C/W) to validate performance in your PCB layout.

Does the TLV62569ADRLT include a power-good (PG) output?

No, the TLV62569ADRLT does not include a power-good output. Pin 6 is designated NC (no connection). The PG function is only available on the TLV62569APDRL variant. If system-level rail monitoring is required, an external supervisor IC or the TLV62569APDRL should be selected instead of the TLV62569ADRLT.

What is the feedback reference voltage of the TLV62569ADRLT and how is output voltage set?

The TLV62569ADRLT has a precise 0.6 V internal feedback reference (±2%). Output voltage is set using an external resistor divider between VOUT, FB, and GND: VOUT = 0.6 V × (1 + R1/R2). TI recommends R2 ≤200 kΩ to balance noise immunity and quiescent current - e.g., R1 = 200 kΩ and R2 = 100 kΩ yields 1.8 V.

Can the TLV62569ADRLT operate with 100% duty cycle, and what is its minimum input voltage?

Yes, the TLV62569ADRLT supports 100% duty cycle to minimize dropout. Minimum input voltage is calculated as VIN(MIN) = VOUT + IOUT × (RDS(on)_HS + DCR_L). With 2 A load, 100 mΩ HS FET, and 20 mΩ inductor DCR, VIN(MIN) ≈ 1.8 V + 0.24 V = 2.04 V - well within its 2.5 V minimum rated input, enabling robust operation near battery depletion.

What package type and thermal characteristics does the TLV62569ADRLT use?

The TLV62569ADRLT is housed in a SOT563-6 package (1.60 mm × 1.60 mm) with exposed thermal pad. Its junction-to-ambient thermal resistance is 142.8 °C/W (JEDEC standard board). For sustained 2 A operation, TI recommends soldering the exposed pad to a thermal copper plane and limiting ambient temperature to ≤85 °C to stay below 125 °C max junction rating.