XCL223 Datasheet | Torex Semiconductor

DESCRIPTION ☆Green Operation patible The XCL223/XCL224 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in one tiny package (2.25mm×1.5mm, h=0.75mm). 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 2.5V to 5.5V enables support for applications that require an internally fixed output voltage (0.8V to 3.6V). The XCL223/XCL224 series uses synchronous rectification at an operating frequency of 3.0MHz. The XCL223/XCL224 series uses Hi SAT-COT synchronous rectification. Hi SAT-COT+PWM control (XCL223) or Hi SAT-COT+automatic PWM/PFM switching control (XCL224) can be selected. The maximum load current can be selected either 400m A or 700m A. The series have a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO function, the internal P-channel driver transistor is forced OFF when input voltage bees 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 PGND pins. The power consumption will be less than 1.0μA. (- )Hi SAT-COT is a proprietary high-speed transient response technology for DC/DC converter which was developed by Torex. It is Ideal for the LSI's that require high precision and high stability power supply voltage. - APPLICATIONS - FEATURES - Note Book PC - Tablet PC Input Voltage Output Voltage Oscillation Frequency : 2.5V ~ 5.5V : 0.8V ~ 3.6V (±2.0%) : 3.0MHz - Mobile phone Output Current : 700m A(Type A) - Wearable Device Efficiency 400m A(Type B) : 88% (VIN=5.0V, VOUT=3.3V/300m A) - Optical Device Control Methods : Hi SAT-COT 100% Duty Cycle PWM (XCL223) PWM/PFM (XCL224) Circuit Protection : Thermal Shut Down Current Limit Circuit (Drop) Short Circuit Protection Functions : Soft-Start Circuit...