Texas Instruments TLV62569DRLT

Overview

TLV62569DRLT from Texas Instruments is a 2-A synchronous step-down DC-DC buck converter in SOT563-6 package, operating from 2.5 V to 5.5 V input and delivering adjustable output (0.6 V to VIN) with up to 95% efficiency at 1.5 MHz switching frequency. It integrates 100 mΩ/60 mΩ high-/low-side MOSFETs and features Power Save Mode for light-load efficiency, 100% duty cycle low-dropout operation, and internal soft-start - used in compact point-of-load supplies for network video cameras and wireless routers.

For engineers reviewing the TLV62569DRLT datasheet, TLV62569DRLT pinout, TLV62569DRLT application, or TLV62569DRLT equivalent, key selection considerations include its 2-A continuous output capability, SOT563 thermal performance (R_θJA = 146.3 °C/W), PG pin absence (non-P variant), and compatibility with ceramic output capacitors ≥10 µF for stable transient response.

Technical Context

The TLV62569DRLT employs adaptive off-time peak current control with fixed ~1.5-MHz PWM operation under medium-to-heavy loads and transitions automatically to Power Save Mode at light loads to sustain high efficiency. Its control loop regulates via external resistor divider on FB pin, with 0.6 V reference voltage and ±2% feedback accuracy over temperature and line.

It integrates protection features including overcurrent limiting (2.5 A typical), thermal shutdown (150 °C rising threshold), UVLO (2.45 V nominal with 100 mV hysteresis), and 35 µA quiescent current. The device supports pre-biased startup and operates down to 2.5 V input while maintaining regulation across 0–2 A load range.

Key Specifications

Pinout & Package

SOT563-6 package (1.60 mm × 1.60 mm, 0.6 mm height) with wettable flanks for automated optical inspection. Pin 6 is NC (no connection); unused and may be left floating, tied to GND, or connected to VOUT per layout requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV62569DRLT, TLV62568DRLT offers pin-compatible downsizing for cost-sensitive 1.5-A applications, while TPS62865DLCT provides higher input voltage support and improved light-load regulation at the expense of layout redesign and FB network recalibration.

Availability

TLV62569DRLT is available at Aetrix Electronics and suitable for network video cameras, wireless routers, and hard disk drive controllers requiring stable component supply, consistent parametric performance, and long-term industrial availability.

Supply support for TLV62569DRLT 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 headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and power management solutions since 1930.

The TLV62569DRLT belongs to TI's low-voltage, high-efficiency buck converter product line targeting space-constrained, battery-powered, and thermally sensitive applications such as consumer electronics and industrial edge nodes.

FAQ

What is the maximum continuous output current of the TLV62569DRLT?

The TLV62569DRLT delivers up to 2 A continuous output current under recommended operating conditions (T_J ≤ 125 °C, 2.5–5.5 V input). Its current limit is specified at 2.5 A typical, providing margin for transient peaks. Thermal performance in the SOT563 package supports this rating with adequate PCB copper area; derating applies above 85 °C ambient.

Does the TLV62569DRLT include a Power Good (PG) output pin?

No, the TLV62569DRLT does not include a Power Good output. Only the TLV62569P variants (e.g., TLV62569PDRL) feature the open-drain PG pin. The TLV62569DRLT omits this function - pin 6 is NC, and no power sequencing signal is generated. System-level power monitoring must be implemented externally if required.

What is the recommended output capacitor value for stable operation of the TLV62569DRLT?

Texas Instruments recommends a minimum 10 µF ceramic output capacitor (X5R or X7R dielectric) for the TLV62569DRLT. Values up to 47 µF improve transient response and reduce output ripple. In the typical 1.8 V/2 A application, 10 µF is sufficient; adding a second 10 µF capacitor in parallel further lowers impedance at high frequencies and enhances load-step immunity.

Can the TLV62569DRLT operate with an input voltage as low as 2.5 V while regulating a 1.8 V output?

Yes, the TLV62569DRLT supports 2.5 V input while regulating 1.8 V output, enabled by its 100% duty cycle mode. At 2 A load, the minimum input is approximately 1.8 V + (2 A × 100 mΩ) = 2.0 V, well within the 2.5 V minimum rating. Efficiency drops to ~85% at 2.5 V/1.8 V/2 A, but regulation remains stable with proper layout and thermal management.

How does Power Save Mode affect output voltage accuracy in the TLV62569DRLT?

In Power Save Mode, the TLV62569DRLT reduces switching frequency and may allow output voltage to rise slightly above nominal - typically ≤2% at light loads (<10 mA). This effect is minimized by using ≥22 µF total output capacitance and avoiding excessive ESR. For applications requiring tight light-load regulation, disabling PSM via external circuitry is not supported; instead, select a fixed-frequency alternative like TPS62865.