2A Synchronous Step-down DCDC Converter with EMI Reduction, SCT9325 Replace TPS5405.
FEATURES

• EMI Reduction with Switching Node Ringing-free

• 3.8V-32V Wide Input Voltage Range

• Up to 2A Continuous Output Load Current

• 5V ±1% Output Voltage

• Fully Integrated 130mΩ Rdson High-side MOSFET 

  and 70mΩ Rdson Low-side MOSFET

• 1uA Shut-down Current

• 20uA Ultra Low Quiescent Current

• 500KHz Switching Frequency with ±6% Frequency 

  Spread Spectrum FSS Modulation

• 80ns Minimum On-time

• Precision Enable Threshold for Programmable UVLO 

  Threshold and Hysteresis

• Low Drop-Out LDO Operation

• Pulse Skipping Modulation PSM in Light Load

• 4ms Built-in Soft-start Time

PIN CONFIGUTION
CROSS
TPS5405 TPS5405.pdf

No.10462

FEATURES

• Fixed 5-V Output

• 6.5-V to 28-V Wide Input Voltage Range

• Up to 2-A Maximum Continuous Output

  Loading Current

• Pulse Skipping Mode to Achieve High Light

  Load Efficiency

• Over 80% Efficiency at 10-mA Loading

• Adjustable 50-kHz to 1.1-MHz Switching

Frequency Set by an External Resistor

(Leave pin ROSC floating. Set frequency to

120 kHz and ground connection to 70 kHz)

• Peak Current-Mode Control

• Cycle-by-Cycle Over Current Protection

• Switching Node Anti-Ringing to Ease EMI Issue

• External Soft Start

• Available in SOIC8 Package

PIN CONFIGUTION
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