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TC1265-3.3VOA Datasheet(PDF) 2 Page - Microchip Technology |
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TC1265-3.3VOA Datasheet(HTML) 2 Page - Microchip Technology |
2 / 18 page TC1265 DS21376D-page 2 © 2006 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 7) 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 † Notice: Stresses above those listed under "Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VIN = VR + 1.5V, (Note 1), IL = 100 µA, CL = 3.3 µF, SHDN > VIH, TA = +25°C. Boldface type specifications apply for junction temperatures of -40°C to +125°C. Parameters Sym Min Typ Max Units Conditions Input Operating Voltage VIN 2.7 — 6.0 V Note 2 Maximum Output Current IOUTMAX 800 —— mA Output Voltage VOUT VR – 2.5% VR ± 0.5% VR + 2.5% VVR ≥ 2.5V VR – 2% VR ± 0.5% VR + 3% VR = 1.8V VOUT Temperature Coefficient ΔVOUT/ΔT — 40 — ppm/°C Note 3 Line Regulation ΔVOUT/ΔVIN —0.007 0.35 %(VR + 1V) ≤ VIN ≤ 6V Load Regulation (Note 4) ΔVOUT/VOUT -0.01 0.002 +0.01 %/mA IL = 0.1 mA to IOUTMAX Dropout Voltage (Note 5) VIN–VOUT —20 30 mV VR ≥ 2.5V, IL = 100 µA —50 160 VR ≥ 2.5V, IL = 100 mA — 150 480 VR ≥ 2.5V, IL = 300 mA — 260 800 VR ≥ 2.5V, IL = 500 mA — 450 1300 VR ≥ 2.5V, IL = 800 mA — 1000 1200 VR = 1.8V, IL = 500 mA — 1200 1400 IL = 800 mA Supply Current IDD —80 130 µA SHDN = VIH, IL = 0 Shutdown Supply Current ISHDN —0.05 1 µA SHDN = 0V Power Supply Rejection Ratio PSRR — 64 — db F ≤ 1kHz Output Short Circuit Current IOUTSC — 1200 1400 mA VOUT = 0V Thermal Regulation ΔVOUT/ΔPD —0.04 — V/W Note 6 Output Noise eN — 260 — nV/ √Hz IL = IOUTMAX, F = 10 kHZ 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 = 0.1 mA to IOUTMAX. 3: 4: Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range from 0.1 mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation specification. 5: 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. 6: 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 ms. 7: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temper- ature and the thermal resistance from junction-to-air (i.e., TA, TJ, θJA). Exceeding the maximum allowable power dissipa- tion causes the device to initiate thermal shutdown. Please see Section 5.0 “Thermal Considerations” for more details. 8: Hysteresis voltage is referenced to VR. TCVOUT VOUTMAX VOUTMIN – () 10 6 – VOUT T Δ × ------------------------------------------------------------------------- = |
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