Switching Voltage Regulators 1.75-V to 5.5-V inpu t 1-A ultra-low IQ A 595-TPS62802YKAT

TPS62802YKAR – 1A Step-Down DC/DC Converter – Texas Instruments

Optimize power efficiency in space-constrained designs with the TPS62802YKAR buck regulator from Texas Instruments. This high-frequency, synchronous step-down converter delivers up to 1A output current with exceptional thermal performance, ideal for battery-powered and portable electronics requiring stable voltage conversion. PCX ensures genuine Texas Instruments components with same-day shipping and dedicated technical support.

Key Features

• Wide Input Range: 1.8V to 5.5V
• Adjustable Output: 1.8V to 3.3V (Fixed 1.8V Option)
• High Efficiency: Synchronous rectification with 4MHz switching frequency
• Compact Footprint: 6-DSBGA package (1.05mm x 0.70mm)
• Robust Operation: -40°C to +125°C junction temperature range

Technical Details

This single-output buck regulator uses a fixed-frequency PWM topology for low-noise voltage conversion. The adjustable output version supports external resistor programming, while fixed-voltage variants simplify design. Its ultra-small DSBGA package enables high-density PCB layouts. The integrated synchronous MOSFET eliminates external diodes, reducing BOM cost and board space. Surface-mount construction ensures reliable automated assembly.

Typical Applications

• IoT sensors and wearable devices
• Portable medical instrumentation
• Smartphone/tablet peripheral modules
• Industrial handheld terminals
• 5V rail sub-system power conversion

About Texas Instruments

Texas Instruments (TI) is a global leader in semiconductor innovation, with over 90 years of expertise in analog and embedded processing technologies. Their power management ICs set industry benchmarks for efficiency, integration, and reliability across automotive, industrial, and consumer markets.

TI’s rigorous quality control and continuous R&D investment ensure components meet stringent performance standards. Engineers worldwide trust TI solutions for mission-critical designs, backed by comprehensive design resources and long-term product lifecycle support.

About Buck Switching Regulators

Buck (step-down) regulators efficiently convert higher input voltages to lower output levels with minimal energy loss. Unlike linear regulators, switching architectures like the TPS62802 maintain high efficiency across load variations, reducing heat generation and extending battery life in portable devices.

Modern buck ICs integrate controllers, MOSFETs, and protection circuits into single-chip solutions. Their compact form factors and high switching frequencies (like this 4MHz device) enable smaller external inductors and capacitors, critical for space-sensitive applications like wearables and embedded systems.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for automated SMT assembly. Specify preferred packaging at checkout.

Frequently Asked Questions

Question: What is the typical efficiency of this regulator at 3.3V output?
Answer: At 3.3V output with 3.6V input and 500mA load, efficiency exceeds 90%. See datasheet on PCXCo.com for full curves.

Question: Does this IC require external compensation components?
Answer: No, it features internal compensation for simplified design and reduced component count.

Question: Is the output voltage factory-set or adjustable?
Answer: The TPS62802YKAR supports adjustable output (1.8V–3.3V). Fixed-voltage variants are listed separately in the TPS62802 series.

Question: Can it operate from a single Li-ion battery?
Answer: Yes, its 1.8V–5.5V input range supports direct connection to discharged Li-ion cells (down to 2.7V) and regulated 5V sources.

Question: What protection features are included?
Answer: Integrated safeguards include thermal shutdown, cycle-by-cycle current limiting, and undervoltage lockout.

Question: How does the 4MHz switching frequency benefit designs?
Answer: Higher frequencies allow smaller inductor/capacitor values, minimizing solution size while avoiding audible noise.

Note: Product images are representational. Refer to datasheet for exact dimensions and schematics.

Optimize Your Power Design – Order Today for Fast Delivery!

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