RT9261-15GB RICHTEK [Richtek Technology Corporation], RT9261-15GB Datasheet
RT9261-15GB
Related parts for RT9261-15GB
RT9261-15GB Summary of contents
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... LX switch protection circuit. A low ripple and high efficiency step-up DC/DC converter can be constructed of this RT9261 IC with only three external components. The RT9261A IC provides with a drive pin (EXT) for an external transistor, so that a power transistor can be externally applied. Therefore, the RT9261A IC is recommended for applications where large currents are required. EN pin enables circuit to set the standby supply current at a maximum of 0.5μ ...
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... SOT-23-5 D1 1N5819 L1 RT9261CX LX VOUT 100uH GND Figure 27uH 1N5819 Cb RT9261ACX 0.01uF EXT IN ZTX GND 650 Rb Tr 300 Figure 2 D1 1N5819 L1 RT9261CB LX VOUT 100uH GND Figure 3 1 EXT VOUT GND RT9261A OUT C OUT 22uF VOUT V OUT ...
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... V IN DS9261/A-12 March 2007 Preliminary L1 D1 27uH 1N5819 RT9261ACB NC VOUT Cb 0.01uF EXT ZTX EN GND 650 Rb Tr 300 Figure 4 D1 1N5819 L1 RT9261CB LX VOUT 27uH Chip GND Enable Figure 5 RT9261/A V OUT C OUT 22uF V OUT C OUT 22uF www.richtek.com 3 ...
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... RT9261/A Functional Pin Description Pin No. -xxCX A-xxCX -xxCB Function Block Diagram LX GND EXT Notes: (1) LX Pin...... only for 9261- (2) EXT Pin.... only for 9261A- (3) EN Pin...... only for 9261- www.richtek.com 4 Preliminary Pin Name Pin Function A-xxCB ...
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... C/W JA SOT-23-5, θ ---------------------------------------------------------------------------------------------------------- 250° C/W JA Operating Temperature Range ------------------------------------------------------------------------------------- Storage Temperature Range --------------------------------------------------------------------------------------- 165°C Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260°C Notes: (1) Applicable to RT9261- CX and RT9261- (2) Applicable to RT9261A- (3) Applicable to RT9261- CB and RT9261A- Electrical Characteristics Parameter Output Voltage Accuracy Input Voltage Start-up Voltage Hold-on Voltage ≤ ...
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... RT9261/A Electrical Characteristics Parameter Output Voltage Accuracy Input Voltage Start-up Voltage ≤ 3.5V V OUT Input Current 1 3.5V < V ≤ 3.5V V OUT Input Current 2 3.5V < V ≤ 3.5V V EXT “H” Output OUT Current 3.5V < V ≤ 3.5V V EXT “L” Output OUT Current 3.5V < V Maximum Oscillator Frequency Oscillator Duty Cycle ...
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... → OUT -- × 0.9 0.4× V OUT × ” L” ) side 0.65 = 25°C, and use External Circuit of Typical = 25°C, and External Circuit of Typical Application RT9261/A Typ Max -- + 1 μ μ μ ...
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... RT9261/A Electrical Characteristics Parameter Output Voltage Accuracy Input Voltage Start-up Voltage ≤ 3.5V V OUT Efficiency 3.5V < V OUT ≤ 3.5V V OUT Input Current 1 3.5V < V OUT ≤ 3.5V V OUT Input Current 2 3.5V < V OUT ≤ 3.5V V EXT “H” Output OUT Current 3.5V < V OUT ≤ 3.5V V EXT “L” Output ...
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... Output Current vs. Ripple Voltage 80 60 1. Output Current (mA) Output Voltage vs. Temperature -40 - Temperature ° Supply Current vs. Temperature 70 RT9261 V = 2.7V OUT Input Current -40 - Temperature ° 2.0V 2.5V RT9261 V = 2.7V OUT 80 100 RT9261 V = 2.7V OUT Input Current www.richtek.com 9 ...
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... Output Current (mA) Efficiency vs. Output Current Output Current (mA) Output Current vs. Ripple Voltage 120 100 Output Current (mA) DS9261/A-12 March 2007 2.5V 1.5V 1.0V 2.0V 0.9V RT9261A V = 2.7V OUT 120 150 2.5V 2.0V 0.9V 1.5V 1.0V RT9261A V = 2.7V OUT 120 150 2.5V 2.0V 1.5V 0.9V RT9261A V = 2.7V OUT 120 150 ...
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... SOT-23-5 Surface Mount Package RT9261 Dimensions In Inches Min Max 0.035 0.051 0.000 0.006 0.055 0.071 0.014 0.022 0.102 0.118 0.106 0.122 0.033 0.041 ...
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... RT9261/A Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 www.richtek.com 12 Preliminary Dimensions In Millimeters Min Max 1.397 1.600 0.356 0.483 2.388 2.591 0.406 0.533 3.937 4 ...