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RT9261B-30GB Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT9261B-30GB Datasheet(HTML) 4 Page - Richtek Technology Corporation |
4 / 8 page RT9261B Preliminary 4 DS9261B-12 March 2007 www.richtek.com Electrical Characteristics (Refer to Figure 2) Notes: (1) VIN = 1.8V, VSS = 0V, IOUT = 1mA, Topt = 25°C, and use External Circuit of Typical Application (2) VIN = 3V, VSS = 0V, IOUT = 1mA, Topt= 25°C, and External Circuit of Typical Application Parameter Symbol Test Conditions Min Typ Max Units Output Voltage Accuracy ΔVOUT -2 -- +2 % Input Voltage VIN -- -- 7 V Start-up Voltage VST IOUT = 1mA, VIN: 0 → 2V -- 0.8 1 V Hold-on Voltage VHO IOUT = 1mA, VIN: 2 → 0V 0.7 -- -- V Efficiency -- 80 -- % VOUT ≤ 3.5V (1) -- 24 36 Input Current 1 3.5V < VOUT ≤ 5V (2) To be measured at VIN in continuous switching -- 36 45 μA Input Current 2 (1) (2) To be measured at VOUT in switch off condition -- 6.5 10 μA VOUT ≤ 3.5V (1) -- 18 36 Input Current 3 3.5V < VOUT ≤ 5V (2) To be measured at VIN in no load (guaranteed by I1 and I2) -- 20 45 μA VOUT ≤ 3.5V (1) 120 -- -- LX Switching Current 3.5V < VOUT ≤ 5V (2) ISWITCHING VLX = 0.4V 160 -- -- mA LX Leakage Current ILEAKAGE VLX = 6V -- -- 0.5 μA EN “H” Level VIN = VOUT * 0.9 0.4 ×VOUT -- -- V EN “L” Level VIN = VOUT * 0.9 -- -- 0.2 V EN “H” Input Current EN = VOUT -- -- 0.5 μA EN “ L” Input Current EN = 0V -0.5 -- -- μA VOUT = 2.5V to 5V 140 190 240 kHz Maximum Oscillator Frequency FMAX VOUT = 1.5V to 2.4V 140 190 320 kHz Oscillator Duty Cycle DOSC On (VLX “L”) side 65 75 85 % VLX Voltage Limit LX switch on 0.65 0.8 1.0 V |
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