ZXSC420

VOLTAGE MODE BOOST CONVERTER ZXSC410 ZXSC420 DESCRIPTION The ZXSC410 is voltage mode boost converter in SOT23-6 package. Its excellent load and line regulation means that for the full supply range from lithium Ion cells, the output voltage will typically change by less than 1%. Using high efficiency Zetex switching transistors allow output voltages of tens of volts depending on the selected transistor. The ZXSC420 includes a battery low indicator. This operates by indicating when the converter is no longer able to maintain the regulated output voltage rather than setting a preset threshold, thereby making it suitable for various battery options and load currents. FEATURES 1.65V to 8V supply range Typical output regulation of ±1% Over 85% typical efficiency Output currents up to 300mA 4.5␮A typical shutdown current ZXSC410 End of regulation output ZXSC420 APPLICATIONS System power for battery portable products LCD bias Local voltage conversion SOT23-6 ORDERING INFORMATION DEVICE ZXSC410E6TA ZXSC420E6TA REEL TAPE QUANTITY SIZE WIDTH PER REEL 7” 8mm 3000 units 7” 8mm 3000 units TYPICAL APPLICATIONS DIAGRAM VIN C1 L1 D1 ZHCS1000 VOUT U1 VCC DRIVE STDN SENSE GND VFB ZXSC410 Q1 FMMT617 R2 C2 R1 R3 DEVICE MARKING C410 ZXSC410 C420 ZXSC420 ISSUE 2 - May 2003 1 SEMICONDUCTORS ZXSC410 ZXSC420 ABSOLUTE MAXIMUM RATINGS VCC DRIVE EOR STDN VFB, SENSE Operating Temp. Storage Temp. Power Dissipation -0.3V to -0.3V to -0.3V to -0.3V to -0.3V to -40°C...