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TC1264 Arkusz danych(PDF) 2 Page - Microchip Technology |
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TC1264 Arkusz danych(HTML) 2 Page - Microchip Technology |
2 / 12 page TC1264 DS21375B-page 2 © 2002 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Input Voltage .........................................................6.5V Output Voltage.................. (VSS – 0.3V) to (VIN +0.3V) Power Dissipation................Internally Limited (Note 8) Maximum Voltage on Any Pin ........ VIN +0.3V to -0.3V Operating Temperature Range...... -40°C < TJ <125°C Storage Temperature.......................... -65°C to +150°C *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC1264 ELECTRICAL SPECIFICATIONS Electrical Characteristics: VIN =VR +1.5V, (Note 1),IL =100µA, CL =3.3µF, TA = 25°C, unless otherwise noted. Boldface type specifications apply for junction temperatures of -40°C to +125°C. Symbol Parameter Min Typ Max Units Test Conditions VIN Input Operating Voltage 2.7 — 6.0 V Note 2 IOUTMAX Maximum Output Current 800 —— mA VOUT Output Voltage VR –2.5% VR –2% VR ±0.5% VR ±0.5% VR +2.5% VR +3% VVR ≥ 2.5V VR =1.8V VR –7% — VR +3% VIL = 0.1mA to 800mA (Note 3) ∆VOUT/∆TVOUT Temperature Coefficient — 40 — ppm/°C Note 4 ∆VOUT/∆VIN Line Regulation — 0.007 0.35 %(VR +1V) ≤ VIN ≤ 6V ∆VOUT/VOUT Load Regulation -0.01 0.002 0 %/mA IL =0.1mA to IOUTMAX (Note 5) VIN-VOUT Dropout Voltage — — — — — — — 20 50 150 260 450 700 890 30 160 480 800 1300 1000 1400 mV VR ≥ 2.5V, IL =100µA IL =100mA IL =300mA IL =500mA IL =800mA VR =1.8V, IL =500mA IL =800mA (Note 6) IDD Supply Current — 80 130 µAIL =0 PSRR Power Supply Rejection Ratio — 64 — dB F ≤ 1kHz IOUTSC Output Short Circuit Current — 1200 — mA VOUT =0V ∆V OUT/∆PD Thermal Regulation — 0.04 — V/W Note 7 eN Output Noise — 260 — nV/ √Hz IL =IOUT MAX,F = 10kHz Note 1: VR is the regulator output voltage setting. 2: The minimum VIN has to justify the conditions: VIN ≥ VR +VDROPOUT and VIN ≥ 2.7V for IL = 0.1mA to IOUTMAX. 3: This accuracy represents the worst case over the entire output current and temperature range. 4: 5: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range from 0.1mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation specification. 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at a 1.5V differential. 7: Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a current pulse equal to ILMAX at VIN = 6V for T = 10 msec. 8: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the thermal resistance from junction-to-air (i.e., TA,TJ, θJA). Exceeding the maximum allowable power dissipation causes the device to initiate thermal shutdown. Please see Section 4.0 Thermal Considerations for more details. TC VOUT =(VOUTMAX –VOUTMIN)x 10 6 VOUT x ∆T |
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