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General Description

BD9S109NUX-C is a synchronous buck DC/DC

Converter with built-in low On Resistance power

MOSFETs. It is capable of providing current up to 1 A.

Small inductor is applicable due to high switching

frequency of 2.2 MHz. It is a current mode control

DC/DC Converter and features high-speed transient

response. It has a built-in phase compensation circuit.

Applications can be created with a few external

components.

Features

? AEC-Q100 Qualified(Note 1)

? Single Synchronous Buck DC/DC Converter

? Adjustable Soft Start Function

? Output Discharge Function

? Power Good Output

? Input Under Voltage Lockout Protection (UVLO)

? Short Circuit Protection (SCP)

? Output Over Voltage Protection (OVP)

? Over Current Protection (OCP)

? Thermal Shutdown Protection (TSD)

(Note 1) Grade 1

Applications

? Automotive Equipment

? Other Electronic Equipment