DC/DC Converters Inductor Built-in
1.5A Inductor Built-in Step-Down “micro DC/DC” Converters
TYPICAL APPLICATION CIRCUIT
The XCL213/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 XCL213/XCL214 series uses synchronous rectification at an operating frequency of 3.0MHz. The XCL213/XCL214 series uses HiSAT-COT(*) synchronous rectification. HiSAT-COT+PWM control (XCL213) or 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(TYP.) or lower. 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.
(*) HiSAT-COT is an original Torex term for High Speed Transient Response.
|Control Methods||HiSAT-COT Control
100% Duty cycle
|Circuit Protection||Thermal Shut Down
Current Limit Circuit (Drop)
Short Circuit Protection
|Functions||Soft-start Circuit Built-In
|Output Capacitor||Low ESR Ceramic Capacitor|
|Environmental Friendly||EU RoHS Compliant, Pb Free|
|* Values are shown in the above can be changed without any prior notice.|
Typical Performance Characteristics