SM8103 Datasheet PDF (Synchronous Step Down Regulator)

SM8103 - Synchronous Step Down Regulator

Description

The SM8103 is a high efficiency, 500kHz synchronous step-down DC/DC regulator capable of delivering up to 3A load current.

It can operate over a wide input voltage range from 4.2V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Features

Low RDS(ON) for Internal Switches (Top/Bottom): 90mΩ/50mΩ.
4.2-18V Input Voltage Range.
3A Output Current Capability.
500kHz Switching Frequency Minimize the External Components.
Stable with 10µF COUT and 2.2µH Inductor.
Instant PWM Architecture to Achieve Fast Transient Responses.
Internal Soft-start Limits the Inrush Current.
Cycle-by-cycle Peak/Valley Current Limitation.
Hic-cup Mode Output Short Circuit Protection.
Thermal Shutdown with Auto.

Datasheet Details

Part number	SM8103
Manufacturer	Silergy
File Size	951.57 KB
Description	Synchronous Step Down Regulator
Datasheet	SM8103 Datasheet
Additional preview pages of the SM8103 datasheet.

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Full PDF Text Transcription

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General Description The SM8103 is a high efficiency, 500kHz synchronous step-down DC/DC regulator capable of delivering up to 3A load current. It can operate over a wide input voltage range from 4.2V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SM8103 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz to minimize the size of the inductor and the capacitor. Ordering Information SM8103 □(□□)□ Temperature Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SM8103ADC TSOT23-6 ---- Typical Application CBS 100nF VIN :4.

Published: Dec 17, 2024 |