1.5A Inductor Built-in Step-Down “micro DC/DC” Converters

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The XCL214 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in one tiny package (2.5mm×3.2mm, h=1.0mm). An internal coil simplifies the circuit and enables minimization of noise and other operational trouble due to the circuit wiring. A wide operating voltage range of 2.7V to 5.5V enables support for applications that require an internally fixed output voltage (0.8V to 3.6V). The XCL214 series uses synchronous rectification at an operating frequency of 3.0MHz. The XCL214 series uses HiSAT-COT (*) synchronous rectification.

HiSAT-COT+automatic PWM/PFM switching control (XCL214) can be selected. The series have a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel driver transistor is forced OFF when input voltage becomes 2.0V or lower. When CE=Low, the integrated CL discharge function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge switch located between the LX and VSS pins. The power consumption will be less than 1.0μA.

(*) HiSAT-COT is an original Torex term for High Speed Transient Response.

• Note Book PC
• Tablet PC
• Mobile phone
• Projector
• Printer

Symmetry Electronics is an authorized Torex distributor.


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Input Voltage : 2.7V~5.5V
Output Voltage : 0.8V~3.6V
Oscillation Frequency : 3.0MHz
Output Current : 1.5A
Efficiency : 92% (VIN=5.0V, VOUT=3.3V/500mA)
Control Methods : HiSAT-COT
100% Duty Cycle
Circuit Protection : Thermal Shut Down
Current Limit Circuit (Drop)
Short Circuit Protection (Latch)
Functions : Soft-start Circuit Built-in
CL Discharge
Output Capacitor : Low ESR Ceramic Capacitor
Operating Ambient Temperature : -40?~+105?
Package : USP-9B01
Environmental Friendly : EU RoHS Compliant, Pb Free

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