XCL213/XCL214 Series ETR28005-004 HiSAT-COT Control 1.5A Inductor Built-in Step-Down micro DC/DC Converters GreenOperationCompatible GENERAL DESCRIPTION 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 (2.5mm3.2mm, 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 or lower. When CE=Low, the integrated C discharge function which enables the electric charge at the output capacitor C to be discharged via L L the internal discharge switch located between the L and V pins. The power consumption will be less than 1.0A. X SS (*) HiSAT-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. FEATURES APPLICATIONS Input Voltage : 2.7V ~ 5.5V Note Book PC Output Voltage : 0.8V ~ 3.6V Tablet PC Oscillation Frequency : 3.0MHz SSD Output Current : 1.5A Mobile phone Efficiency : 92% (V =5.0V, V =3.3V/500mA) IN OUT Projector Control Methods : HiSAT-COT Printer 100% Duty Cycle HiSAT-COT+PWM (XCL213) HiSAT-COT+PWM/PFM (XCL214) Circuit Protection : Thermal Shut Down Current Limit Circuit (Drop) Short Circuit Protection (Latch) Functions : Soft-start Circuit Built-in UVLO C Discharge L Output Capacitor : Low ESR Ceramic Capacitor Operating Ambient Temperature : -40 ~ +105 Package : USP-9B01 Environmental Friendly : EU RoHS Compliant, Pb Free TYPICAL PERFORMANCE TYPICAL APPLICATION CIRCUIT CHARACTERISTICS XCL213/XCL214 (VOUT=3.3V) 100 XCL214 80 L1 Lx VOUT VIN L2 VIN 60 CL CIN CE VOUT 40 XCL213 PGND AGND 20 V =5.0V IN 0 0.1 1 10 100 1000 10000 Output Current : I (mA) OUT 1/17 Efficiency : EFFI (%) XCL213/XCL214 Series BLOCK DIAGRAM Inductor L1 L2 Short VOUT Protection R1 CFB High Side Current Limit VIN Phase Compensation R2 Error Comparator Amp. AGND S Synch Q Logic Buffer Lx Drive R Vref with Soft Start CE Control Logic, Minimum On UVLO Time VIN Thermal Shutdown Generator PGND CE VOUT PWM/PFM Selector * The XCL213 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at PWM internally. The XCL214 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at PWM/PFM automatic switching internally. Diodes inside the circuit are an ESD protection diode and a parasitic diode. PRODUCT CLASSIFICATION Ordering Information XCL213 PWM XCL214 PWM/PFM Automatic switching control DESIGNATOR ITEM SYMBOL DESCRIPTION B Type Refer to Selection Guide E Output Voltage options e.g.)1.2V =1, =2 1.25V =1, =C Output Voltage 08 ~ 36 0.05V Increments: 0.05=A,0.15=B,0.25=C,0.35=D,0.45=E,0.55=F,0.65=H, 0.75=K,0.85=L,0.95=M Oscillation Frequency 3 3.0MHz (*1) Package (Order Unit) DR USP-9B01 (3,000pcs/Reel) (*1) The XCL213/XCL214 reels are shipped in a moisture-proof packing. Selection Guide LATCH or SOFT- OUTPUTT C AUTO- CHIP CURRENT THERMAL L TYPE SHORT UVLO START VOLTAGE DISCHARGE ENABLE LIMIT SHUTDOWN PROTECTION Typ. B Fixed Yes Yes Yes Yes Yes 0.3ms Yes E Fixed Yes Yes Yes Yes Yes 0.4ms Yes 2/16