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Description

The FAN53730 is a constant on time (COT) buck converter that

supports a minimum of 3 A load current. The device’s COT topology

provides the fastest transient recovery and optimal efficiency vs load

due to its variable frequency operation.

Two device options are available (see Ordering Information):

♦ I2C Controlled

♦ Logic Controlled (pin selectable VOUT)

Both options have automatic DCM/CCM mode operation

with Forced CCM control.

Features

• Input Voltage Range: 2.3 V to 5.5 V

• Output Voltage:

♦ Programmable from 0.3 V to 2 V

♦ Pin Selectable Defaults

• Low Quiescent Current: 12 A

• Internal Soft−Start Limits Input Current During Turn−On

• 2.5 MHz Switching Frequency in Continuous Conduction

Operation

• 1.2 V and 1.8 V Logic Compatible

• Fault Protection (Input Under Voltage, Short Circuit, Over Current,

and Thermal)

• Power Good Output (PG)

• Forced Continuous Conduction Mode (FCCM)

• Audio Reduction Mode Eliminates Audible Tones Due

to Switching

• −40°C to +85°C Ambient Temperature Range

• This is a Pb−Free Device

Applications

• LPDDR Memory

• Mobile and Smart Devices

• RF Modules