4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup,SGM61181 Replace TPS54821.
FEATURES

 Low Integrated RDSON Switches: 24mΩ/15mΩ

 Split Rails for Supply (VIN) and Power (PVIN)

    1.8V to 18V Range for PVIN

    4.5V to 18V Range for VIN

• 200kHz to 2000kHz Switching Frequency

• External Clock Synchronization

• Voltage Tracking Capability

• 0.8V Internal Reference Voltage

• ±1% Reference Voltage Accuracy

• 3.4μA (TYP) Shutdown Current

• Monotonic Startup with Pre-biased Outputs

• Adjustable Soft-Start Time

• Power Sequencing Capability

• Power Good Output Monitor for Under-Voltage

  and Over-Voltage Protections

• Adjustable Input Under-Voltage Lockout (UVLO)

• Thermal Shutdown (+175℃)

• Available in a Green TQFN-3.5×3.5-14L Package

PIN CONFIGUTION
CROSS
TPS54821 TPS54821.pdf

No.13189

FEATURES

• Integrated 26 mΩ / 19 mΩ MOSFETs

• Split Power Rail: 1.6 V to 17 V on PVIN

• 200 kHz to 1.6 MHz Switching Frequency

• Synchronizes to External Clock

• 0.6V ±1% Voltage Reference Over Temperature

• Low 2 μA Shutdown Quiescent Current

• Monotonic Start-Up into Pre-biased Outputs

• Adjustable Slow Start/Power Sequencing

• Power Good Output Monitor for Undervoltage and

  Overvoltage

• Adjustable Input Undervoltage Lockout

• Software Tools Available







PIN CONFIGUTION
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