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LM2653 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM2653 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 13 page Electrical Characteristics (Continued) Specifications with standard typeface are for T J = 25˚C, and those in boldface type apply over full Operating Temperature Range.V IN = 10V unless otherwise specified. Symbol Parameter Conditions Typical (Note 5) Limit (Note 4) Units V BOOT Bootstrap Regulator Voltage I BOOT = 1 mA 6.75 6.45/6.40 6.95/7.00 V V(min) V(max) G M Error Amplifier Transconductance 1250 µmho A V Error Amplifier Voltage Gain 100 I EA_SOURCE Error Amplifier Source Current V IN = 3.6V, VFB = 1.17V, VCOMP =2V 40 25/15 µA µA(min) I EA_SINK Error Amplifier Sink Current V IN = 3.6V, VFB = 1.31V, VCOMP =2V 65 30 µA µA(min) V EAH Error Amplifier Output Swing Upper Limit V IN = 4V, VFB = 1.17V 2.70 2.50/2.40 V V(min) V EAL Error Amplifier Output Swing Lower Limit V IN = 4V, VFB = 1.31V 1.25 1.35/1.50 V V(max) V D Body Diode Voltage I DIODE = 1.5A 1 V F OSC Oscillator Frequency Measured at Switch Pin V IN =4V 300 280/255 330/345 kHz kHz(min) kHz(max) D MAX Maximum Duty Cycle V IN =4V 95 92 % %(min) I SS Soft-Start Current Voltage at the SS Pin = 1.4V 11 7 14 µA µA(min) µA(max) V OUTUV V OUT Undervoltage Lockout Threshold Voltage 81 76 84 %V OUT %V OUT(min) %V OUT(max) Hysteresis for V OUTUV 5%V OUT V OUTOV V OUT Overvoltage Lockout Threshold Voltage 108 106 114 %V OUT %V OUT(min) %V OUT(max) Hysteresis for V OUTOV 3%V OUT I LDELAY__ SOURCE LDELAY Pin Source Current 5 µA I PGOOD__SINK PGOOD Pin Sink Current V PGOOD = 0.4V 15 mA(max) I PGOOD__LEAKAGE PGOOD Pin Leakage Current V PGOOD =5V 50 nA I SHUTDOWN Shutdown Pin Current Shutdown Pin Pulled Low 2.2 0.8/0.5 3.7/4.0 µA µA(min) µA(max) V SHUTDOWN Shutdown Pin Threshold Voltage Rising Edge 0.6 0.3 0.9 V V(min) V(max) T SD Thermal Shutdown Temperature 165 ˚C T SD_HYST Thermal Shutdown Hysteresis Temperature 25 ˚C Note 1: Absolute Maxmum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but device parameter specifications may not be guaranteed under these conditions. For guaranteed specifications and test conditions, see the Electrical Characteristics. www.national.com 3 |
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Descripción similar - LM2653 |
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