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LM7705 データシート(PDF) 3 Page - Texas Instruments |
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LM7705 データシート(HTML) 3 Page - Texas Instruments |
3 / 22 page LM7705 www.ti.com SNVS420B – NOVEMBER 2008 – REVISED MARCH 2013 3.3V Electrical Characteristics (continued) Unless otherwise specified, all limits are ensured for TA = 25°C, VDD = 3.3V, VSS = 0V, SD = 0V, CFLY= 5 µF, CRES = 22 µF, COUT = 22 µF. Boldface limits apply at temperature extremes (1). Symbol Parameter Conditions Min(2) Typical(3) Max(2) Units VIL Shutdown Input Low 1.6 V 1.25 VIH Shutdown Input High 1.85 V 2.15 IC Shutdown Pin Input Current SD = VDD 50 pA Load Regulation 0 mA ≤ IOUT ≤ −20 mA 0.12 0.6 %/mA 0.85 Line Regulation 3V ≤ VDD ≤ 5.25V (No Load) -0.2 0.29 0.7 %/V 1.1 5.0V Electrical Characteristics Unless otherwise specified, all limits are ensured for TA = 25°C, VDD = 5.0V, VSS = 0V, SD = 0V, CFLY = 5 µF, CRES = 22 µF, COUT = 22 µF. Boldface limits apply at temperature extremes (1). Symbol Parameter Conditions Min(2) Typical(3) Max(2) Units VOUT Output Voltage IOUT = 0 mA −0.242 −0.233 −0.219 −0.251 −0.209 V IOUT = −20 mA −0.242 −0.226 −0.219 −0.251 −0.209 VR Output Voltage Ripple IOUT = −20 mA 4 mVPP IS Supply Current No Load 60 103 135 μA 240 ISD Shutdown Supply Current SD = VDD 20 nA ηPOWER Current Conversion Efficiency −5 mA ≤ IOUT ≤ −20 mA 98 % ηPOWER Current Conversion Efficiency IOUT = −5 mA 98 % tON Turn On Time IOUT = −5 mA 200 μs t OFF Turn Off Time IOUT = −5 mA 700 μs tOFF CP Turn Off Time Charge Pump IOUT = −5 mA 11 μs ZOUT Output Impedance −1 mA ≤ IOUT ≤ −20 mA 0.26 0.8 Ω 1.3 IO_MAX Maximum Output Current VOUT < − 200 mV −35 mA fOSC Oscillator Frequency 91 kHz VIL Shutdown Input Low 2.55 V 1.95 VIH Shutdown Input High 2.8 V 3.25 IC Shutdown Pin Input Current SD = VDD 50 pA Load Regulation 0 mA ≤ IOUT ≤ −20 mA 0.14 0.6 %/mA 0.85 Line Regulation 3V ≤ VDD ≤ 5.25V (No Load) −0.2 0.29 0.7 %/V 1.1 (1) Boldface limits apply to temperature range of −40°C to 125°C (2) All limits are specified by testing or statistical analysis. (3) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not specified on shipped production material. Copyright © 2008–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM7705 |
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