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RT9262 Datasheet(PDF) 6 Page - Richtek Technology Corporation |
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RT9262 Datasheet(HTML) 6 Page - Richtek Technology Corporation |
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6 / 10 page  RT9262/A Preliminary 6 DS9262/A-11 March 2007 www.richtek.com Electrical Characteristics (VIN = 1.5V, VDD set to 3.3V, Load Current = 0, TA = 25° C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Units Start-UP Voltage VST IL = 1mA -- 0.98 1.05 V Operating VDD Range VDD Start-up to IDD1 > 250μA 0.8 -- 6.5 * V No Load Current I (VIN) INO LOAD VIN = 1.5V, VOUT = 3.3V -- 47 -- μA Switch-off Current I (VDD) ISWITCH OFF VIN = 6V -- 17 -- μA Shutdown Current I (VIN) IOFF EN Pin = 0V, VIN = 4.5V -- 0.1 1 μA Feedback Reference Voltage VREF Close Loop, VDD = 3.3V 1.225 1.25 1.275 V Feedback Reference Voltage for LDO RT9262 VREF Close Loop, VDD = 3.3V 0.843 0.86 0.877 V LBI Pin Trip Point RT9262A VDD = 3.3V 0.843 0.86 0.877 V Switching Rate FS VDD = 3.3V -- 550 -- kHz Maximum Duty DMAX VDD = 3.3V -- 92 -- % LX ON Resistance VDD = 3.3V -- 0.25 -- Ω Current Limit Setting ILIM VDD = 3.3V -- 2 -- A EXT ON Resistance to VDD VDD = 3.3V -- 40 -- Ω EXT ON Resistance to GND VDD = 3.3V -- 30 -- Ω Line Regulation ΔVLINE VIN = 1.5 to 2.5V, IL = 1mA -- 10 -- mV/V Load Regulation ΔVLOAD VIN = 2.5V, IL = 1 to 100mA -- 0.25 -- mV/mA LDO PMOS ON Resistance RT9262 VDD = 3.3V -- 1 1.5 Ω LDO Drop Out Voltage RT9262 VDROP VDD = 3.3V, IL = 100mA -- 70 -- mV LBO ON Resistance RT9262A VDD = 3.3V -- 40 -- Ω EN Pin Trip Level VDD = 3.3V 0.2 0.8 1.4 V Temperature Stability for FB, LFB, LBI TS Guaranteed by Design -- 50 -- ppm/ °C Thermal Shutdown TSD Guaranteed by Design -- 165 -- °C Thermal Shutdown Hysterises ΔTSD Guaranteed by Design -- 10 -- °C * Note: The EN pin shall be tied to VDD pin and inhibit to act the ON/OFF state whenever the VDD pin voltage may reach to 5.5V or above. |
Similar Part No. - RT9262_07 |
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Similar Description - RT9262_07 |
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