• EMI Reduction with Switching Node Ringing-free

• 500kHz Switching Frequency with 6% Frequency

  Spread Spectrum FSS

• Pulse Skipping Mode PSM with 20uA Quiescent

  Current in Light Load Condition

• 3.8V-32V Wide Input Voltage Range

• Up to 2A Continuous Output Load Current

• 0.8V ±1% Feedback Reference Voltage

• Fully Integrated 130mΩ Rdson High Side MOSFET

  and 70mΩ Rdson Low Side MOSFET

• 1uA Shut-down Current

• 80ns Minimum On-time

• Precision Enable Threshold for Programmable

  UVLO Threshold and Hysteresis

• Low Dropout Mode Operation

• 4ms Built-in Soft Start Time

• Output Over Voltage Protection

• Thermal Shutdown Protection at 160°C

• Available in SOP-8L Package

The SCT9320 is 2A synchronous buck converters

with up to 32V wide input voltage range, which fully

integrates a 130mΩ high-side MOSFET and a 70mΩ

low-side MOSFET to provide high efficiency stepdown

DCDC conversion. The SCT9320 adopts peak

current mode control with the integrated

compensation network, which makes SCT9320 easily

to be used by minimizing the off-chip component

count. The SCT9320 supports the Pulse Skipping

Modulation (PSM) with typical 20uA Ultra-Low

Quiescent and achieves more than 80% efficient at

1mA and 88% at 5mA light load conditions.

The SCT9320 is an Electromagnetic Interference

(EMI) friendly buck converter with implementing

optimized design for EMI reduction. The SCT9320

features Frequency Spread Spectrum FSS with ±6%

jittering span of the 500kHz switching frequency and

modulation rate 1/512 of switching frequency to

reduce the conducted EMI. The converter has

proprietary designed gate driver scheme to resist

switching node ringing without sacrificing MOSFET

turn-on and turn-off time, which further erases high

frequency radiation EMI noise caused by the

MOSFETs hard switching.

The SCT9320 offers output over-voltage protection,

cycle-by-cycle peak current limit, and thermal

shutdown protection. The device is available in a lowprofile

SOP-8L package.