rt9261b-45cx ETC-unknow, rt9261b-45cx Datasheet
rt9261b-45cx
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rt9261b-45cx Summary of contents
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... The RT9261B Series are VFM Step-up DC/DC converter ICs with ultra low supply current by CMOS process and suitable for use with battery-powered instruments. The RT9261B IC consists of an oscillator, a VFM control circuit, a driver transistor (LX switch), a reference voltage unit, an error amplifier, resistors for voltage detection, and a LX switch protection circuit ...
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... NC Function Block Diagram LX GND www.richtek-ic.com.tw 2 Preliminary D1 1N5819 L1 RT9261B LX VOUT 27 µ H GND IN D1 1N5819 L1 RT9261B LX 27 µ H VOUT CE GND Ground Output Voltage Pin for Switching Chip Enable (Active High) No Connection VLX Limiter LXSW Buffer VFM Control OSC 190kHz Chip Enable CE V OUT ...
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... SOT-89 SOT-25 Package Thermal Resistance SOT-89, θ JC SOT-89, θ JA SOT-25, θ JA Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) Notes: (1) Applicable to RT9261B-xxCB Electrical Characteristics Parameter Output Voltage Accuracy Input Voltage Start-up Voltage Hold-on Voltage ≤ 3.5V V OUT Input Current 1 3.5V < V ...
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... RT9261B Electrical Characteristics Parameter Output Voltage Accuracy Input Voltage Start-up Voltage Hold-on Voltage Efficiency ≤ 3.5V V OUT Input Current 1 3.5V < V (1) (2) Input Current 2 ≤ 3.5V V OUT Input Current 3 3.5V < V ≤ 3.5V V OUT LX Switching Current 3.5V < Leakage Current CE “H” Level CE “L” Level CE “H” Input Current CE “ ...
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... OUT L = 47uH 150 200 3. 3.3V OUT 170uF OUT L = 47uH 150 200 RT9261B Output Voltage vs. Output Current 1.5V 1. 100 Output Current (mA) Output Current vs. Ripple Voltage 1.5V 1. 100 Output Current (mA) Efficiency vs. output Current 1.0V 1. 100 Output Current (mA) www.richtek-ic.com.tw 3 ...
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... RT9261B Start-up/Hold-on Voltage vs. Output Current 2.5 2 1.5 V start 1 V hold 0 Output Current (mA) Output Current vs. Ripple Voltage 300 250 200 150 100 50 1.5V 1. 100 Output Current (mA) Output Current vs. Ripple Voltage 18 2. 100 Output Current (mA) www ...
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... SOT-89 Surface Mount RT9261B A H Dimensions In Inches Min Max 0.055 0.063 0.014 0.019 0.094 0.102 0.016 0.021 -- 0.167 0.031 0.047 0.173 0.181 ...
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... RT9261B C A Symbol www.richtek-ic.com.tw 8 Preliminary Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 0.838 1.041 0.102 0.254 0.356 0.610 SOT- 25 Surface Mount Package H L Dimensions In Inches ...
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... DS9261B-03 September 2001 Preliminary RT9261B www.richtek-ic.com.tw 9 ...
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... RT9261B RICHTEK TECHNOLOGY CORP. Headquarter 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 www.richtek-ic.com.tw 10 Preliminary RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek-ic.com.tw ...