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XC9210 - Synchronous Step-Down DC/DC Controller

Description

low voltage step-down DC/DC converter applications.

topology.

Features

  • ge Range : 2.0V ~ 10V Output Voltage Range : 0.9V ~ 6.0V Can be set freely with 0.9V (±2.0%) of reference Oscillation Frequency : 300kHz ±15% (180kHz as custom) Output Current : More than 2A (VIN = 5.0V, VOUT=3.3V) Stand-By Function : 3.0μA (MAX. ) Soft-start internally set-up : 10 ms (internally set-up) Synchronous Step-Down DC/DC Controllers Maximum Duty Cycle : 100% (TYP. ) PWM and PWM/PFM Externally Selectable Synchronous Rectification Control High Efficiency : 95% (TYP. ) Pac.

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Full PDF Text Transcription

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XC9210 series is Discontinued. XC9210 Series Synchronous Step-Down DC / DC Controller ICs ETR0504_003a  ☆GreenOperation-Compatible ■GENERAL DESCRIPTION  THhigehXeCffi9c2ie1n0cyis isa synchronous PWM, PWM/PFM controller designed for obtained through the use of a synchronous rectification low voltage step-down DC/DC converter applications. topology. Efficiencies are maximized by using the low RDSon N-Channel MOSFET switch which replaces the catch diode used in standard buck circuits. The operation of the XC9210 series can be switched between PWM and PWM/PFM externally using the MODE pin. In PWM/PFM mode the XC9210 automatically switches from PWM to PFM during light loads and high efficiencies can be achieved over a wide range of load conditions.
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