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BL8534 Datasheet(PDF) 1 Page - SHANGHAI BELLING CO., LTD. |
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BL8534 Datasheet(HTML) 1 Page - SHANGHAI BELLING CO., LTD. |
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1 / 11 page  www.belling.com.cn 1 High Efficiency Low Noise PFM Step-up DC/DC Converter BL8534 DESCRIPTION BL8534 series are CMOS-based PFM step- up DC-DC Converter. The converter can start up by supply voltage as low as 0.8V, and capable of delivering maximum 200mA output current at 3.3V output with 1.8V input Voltage. Quiescent current drawn from power source is as low as 20uA. All of these features make BL8534 series be suitable for the portable devices, which are supplied by a single battery to four-cell batteries. To reduce the noise caused by the switch regulator, BL8534 is well considerated in circuit design and manufacture. So that the interferer to other circuits by the device is reduced greatly. BL8534 integrates stable reference circuits and trimming technology, so it can afford high precision and low temperature-drift coefficient of the output voltage. BL8534 is available in SOT-89-3, SOT-23-3, SOT-23-5 and TO-92 packages that are PB free. And in 5-pin packages, such as SOT-23- 5, the device can be switch on or off easily by CE pin, to minimize the standby supply current. FEATURES • Deliver 200mA at 3.3V Output voltage with 1.8V input Voltage • Low start-up voltage (when the output current is 1mA)-----------------------------0.8V • Output voltage can be adjusted from 2.5V to 6.0V (In 0.1V step) • Output voltage accuracy ---------------±2％ • Low temperature-drift coefficient of the output voltage-------------------- ±100ppm/℃ • Only three external components are necessary: An inductor, a Schottky diode and an output filter capacitor • Low quiescent current drawn from power source-------------------------------------<20uA APPLICATIONS • Power Source for PDA, DSC, MP3 Player, Electronic toy and wireless mouse • Power Source for a Single or Dual-cell Battery-Powered Equipments • Power Source for LED TYPICAL APPLICATION ELECTRICAL CHARACTERISTICS LC3000CC3TR33 0 1 2 3 4 0 200 400 600 800 Output Current(mA) VIN=1.2V VIN=1.2V VIN=1.2V VIN=1.2V VIN=1.5V VIN=1.5V VIN=1.5V VIN=1.5V VIN=2V VIN=2V VIN=2V VIN=2V VIN=2.5V VIN=2.5V VIN=2.5V VIN=2.5V VIN=3V VIN=3V VIN=3V VIN=3V BL8534 BL8534 |
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