XCL208 Datasheet PDF | TOREX SEMICONDUCTOR

TOREX SEMICONDUCTOR XCL208

The XCL208 series has a fixed frequency, enabling the suppression of output ripple. The XCL209 series achieves high efficiency while holding down output ripple across the full range of loads, from light to heavy, enabling the extension of battery operation time. Output Current XCL208x333DR/XCL209x333D 100 XCL209(PWM/PFM) 80 Efficiency:EFFI(%) 60 40 20 0 0.01 VIN= 4.2V 5.0V XCL208(PWM) V OUT =3.3V 0.1 1 10 100 Output Current:IOUT (mA) 1000 1/22 XCL208/XCL209 Series ■BLOCK DIAGRAM 1) A Type 2) B Type L1 L2 L1 L2 VO UT VO UT LX LX VIN PVSS VIN PVSS AVSS CE...

Part No.	XCL208
Datasheet	XCL208 Download
Manufacturer	TOREX SEMICONDUCTOR
Description	400mA Inductor Built-in Step-Down micro DC/DC Converters
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GENERAL DESCRIPTION

The XCL208/XCL209 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a control IC in one tiny package (2.5mm×2.15mm, h=1.05mm). A stable power supply with an output current of 400mA is configured using only two capacitors connected externally. 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 1.8V (2.0V) to 6.0V enables support for applications that require an alkaline battery (2-cell) or AC adapter (5V) power supply. An internally fixed output voltage (0.8V to 4.0V) or an externally set output voltage can be selected. The XCL208/XCL209 series uses synchronous rectification at an operating frequency of 3.0MHz. PWM control (XCL208) or automatic PWM/PFM switching control (XCL209) can be selected. Soft start and on/off functions with CL discharge are provided, and the IC can be put in the standby state by inputting a Low level signal into the CE pin.