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TPS563200DDCR

3A synchronous buck converter, 4.5-17V input, 0.76-7V output, 650kHz, D-CAP2, SOT-23-6, TI

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Manufacturer Part：

TPS563200DDCR

Package：

SOT-23-6 Thin (DDC) 1.6×2.9mm

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Description

Product Overview

The Texas Instruments TPS563200DDCR is a 4.5V to 17V input, 3A synchronous step-down (buck) converter in a 6-pin SOT-23 package. Using D-CAP2 control topology, it provides fast transient response with no external compensation components required. The integrated 68mΩ high-side and 39mΩ low-side MOSFETs achieve high efficiency, while Advanced Eco-mode maintains efficiency at light loads.

Key Specifications

Topology Synchronous Buck (Step-Down)
Input Voltage Range 4.5V to 17V
Output Voltage Range 0.76V to 7V (adjustable)
Max Output Current 3 A
Switching Frequency 650 kHz (fixed)
Control Mode D-CAP2 (constant on-time, current mode)
High-Side RDS(ON) 68 mΩ
Low-Side RDS(ON) 39 mΩ
Quiescent Current 190 µA (typ)
Shutdown Current <10 µA
Feedback Voltage Accuracy 1% (at 25°C)
Soft Start 1 ms (fixed)
Operating Temperature -40°C to +85°C (ambient)
Package SOT-23-6 Thin (DDC), 1.6×2.9mm

Features

  • D-CAP2 control topology for fast transient response without external compensation
  • Integrated synchronous MOSFETs — no external Schottky diode required
  • Advanced Eco-mode pulse-skip for high light-load efficiency
  • Start-up from pre-biased output voltage
  • Cycle-by-cycle overcurrent protection
  • Hiccup-mode undervoltage protection
  • Non-latch OVP, UVLO, and TSD (thermal shutdown) protections
  • Supports low-ESR ceramic output capacitors directly
  • 1ms fixed soft start for controlled inrush current

Applications

  • Digital TV power supplies
  • Set-top boxes and Blu-ray players
  • Network home terminal devices
  • 5V/3.3V/1.8V point-of-load regulators
  • Raspberry Pi and SBC power modules
  • Industrial control systems

The Texas Instruments TPS563200DDCR is a 3A synchronous step-down DC/DC converter in a 6-pin SOT-23 package. It accepts input voltages from 4.5V to 17V and provides an adjustable output from 0.76V to 7V. Using D-CAP2 control topology, it achieves fast transient response with no external compensation components. The integrated 68mΩ high-side and 39mΩ low-side MOSFETs enable high efficiency without an external Schottky diode. Advanced Eco-mode maintains efficiency during light-load operation, while comprehensive protections (OCP, UVP, OVP, UVLO, TSD) ensure robust operation. The 650kHz fixed switching frequency and 1ms soft start simplify design.

The TPS563200 uses TI’s D-CAP2 (Direct Connection to inductor with Adaptive Positioning, 2nd generation) control mode. This is a constant on-time, current-mode control architecture: (1) The feedback voltage (VFB) from the output resistor divider is compared to the 0.76V internal reference; (2) When VFB falls below the reference, the high-side MOSFET turns on for a calculated on-time proportional to VIN/VOUT; (3) The low-side MOSFET turns on during the off-time, providing synchronous rectification; (4) An internal current-sense emulator injects an artificial ramp into the feedback signal for stable operation with low-ESR ceramic capacitors. In Advanced Eco-mode, at light loads the converter skips pulses to maintain efficiency. The 650kHz switching frequency is internally generated. Protection circuits include cycle-by-cycle current limiting, hiccup-mode UVP, and thermal shutdown at 150°C.

Pin Description(Output pin definitions in table format only; return pure content without derivation or extra elaboration)

Application Scenarios (Output pin definitions in table format only; return pure content without derivation or extra elaboration)

TPS562200DDCR (2A version, 122mΩ/72mΩ FETs); TPS563209DDCR (fixed 5V output variant); TPS563252 (higher frequency, smaller package); RT8068AZQW (Richtek, 3A, 1MHz); SY8113 (Silergy, 3A, 1.4MHz)

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