Description:

The GD30DC1803 is a 100V/ 3.8A peak switchingcurrent limit, non-sync buck converter.The GD30DC1803 integrated with high-side powerMOSFET with advanced COT control method, the sizeof the total solution will be small, load transient will beexcellent, and also with good robustness.Integrated BST charge circuit minimize the cost andsolution size. High duty on-time extension make the partideal for the application that need low drop-out feature.190μA quiescent current saves the power, and 3μA lowoff current is good for those battery powered applications.With 4.5V to 100V wide input voltage range, theGD30DC1803 accommodates a variety of step-downapplications.The GD30DC1803 is available in a cost-effectiveESOP8 package.

Features:

• 4.5V to 100V Wide Operational Range

• Peak Current Limit: 3.8A Typical

• Integrated High Side Power MOS with500mΩ Low Resistance

• Constant On Time Control

• 150kHz/240kHz/460kHz Switching FrequencySelectable

• Special Valley Current Limit for Non-SyncBuck Short Protection

• Low Quiescent Current: 190μA

• Low Current at Off-state: 3μA

• Built-in Pull-up Current at EN Pin

• Full Protection: Over Current Protection,Output Over Voltage Protection, FBOpen/Short Protection, Over TemperatureProtection

• Available in ESOP8 package

Applications:

• Battery powered tools

• E-bike powers, E-motors

• Industry applications

• GPS tracker