Step-down converter TPS563201

buckICSMD

Overview
The TPS563201 is a compact, easy-to-use 3 A synchronous step-down (buck) converter in a 6-pin SOT-23 (DDC) package. Designed for minimal external components, it delivers low standby current and fast transient response using the D-CAP2 control scheme. The TPS563201 operates in pulse-skip mode to maximize light-load efficiency and supports low-ESR output capacitors without external compensation.

Key features

• 3 A synchronous buck converter (TPS563201) with integrated FETs
• D-CAP2™ control for fast transient response
• Input voltage range: 4.5 V to 17 V
• Output voltage range: 0.76 V to 7 V
• Pulse-skip mode (TPS563201) for light-load efficiency
• 580 kHz switching frequency
• Low shutdown current: < 20 µA
• 2% feedback voltage accuracy (25°C)
• Cycle-by-cycle overcurrent limit and hiccup-mode protection
• Non-latch undervoltage protection (UVP) and thermal shutdown (TSD)
• Fixed soft-start: 1.0 ms

Technical parameters

• Topology: Buck
• Iout (max): 3 A
• Vin (min–max): 4.5 V – 17 V
• Vout (min–max): 0.76 V – 7 V
• Control mode: D-CAP2
• Switching frequency: 580 kHz
• Iq (typ): 0.0004 A
• Duty cycle (max): 80%
• Operating junction temperature: -40°C to 125°C

Package | Pins | Size

• Package: SOT-23-THN (DDC)
• Pins: 6
• Footprint area: ~8.12 mm² (2.9 x 2.8 mm)

Evaluation module
Evaluation board: TPS563201EVM-715 — 3-A SWIFT step-down evaluation module. Evaluation modules and example layouts accelerate prototype development.

Documentation & resources
Datasheet, application notes, PSpice models, EVM user guide and reference designs are available to support component selection, layout and thermal considerations.

Typical applications

• Point-of-load regulation in industrial and embedded systems
• Telecom and networking equipment
• Automated test equipment and instrumentation
• Battery-powered and energy-conscious devices