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TC105303ECT Datasheet(PDF) 2 Page - Microchip Technology |
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TC105303ECT Datasheet(HTML) 2 Page - Microchip Technology |
2 / 14 page TC105 DS21349C-page 2 2001-2012 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Voltage on VDD....................................... -0.3V to +12V EXT Output Current ........................................±100mA Voltage on VOUT, EXT, SHDN Pins .....................................-0.3V to VDD +0.3V Power Dissipation.............................................150mW Operating Temperature Range............. -40°C to +85°C Storage Temperature Range ..............-40°C to +125°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. TC105 ELECTRICAL SPECIFICATIONS Electrical Characteristics: Note 1, fOSC = 300 kHz; TA = 25°C, unless otherwise noted. Symbol Parameter Min Typ Max Units Test Conditions VDD Operating Supply Voltage 2.2 — 10.0 V VDDMIN Minimum Input Voltage 0.9 — 2.2 V EXT = High; No external components; VOUT = 0V, SHDN = VIN IDD Operating Supply Current — — 57 67 102 122 A No external components; VR = 3.0V, 3.3V VOUT = 0V, SHDN = VIN VR = 5.0V ISTBY Standby Supply Current — — 15 16 27 29 A No external components; VR = 3.0V, 3.3V VOUT = SHDN = VIN VR = 5.0V ISHDN Shutdown Supply Current — — 0.5 ASHDN = GND fOSC Oscillator Frequency 255 300 345 kHz VIN = VOUT + 0.3V VOUT Output Voltage VR x 0.975 VR VR x 1.025 Note 2 DTYMAX Maximum Duty Cycle (PWM Mode) 100 — — % DTYPFM Duty Cycle (PFM Mode) 15 25 35 % IOUT = 0mA VIH SHDN Input Logic High 0.65 — — V VOUT = 0V, No external components VIL SHDN Input Logic Low — — 0.20 V VOUT = 0V, No external components REXTH EXT ON Resistance to VDD — — — 17 16 12 24 22 17 No external components; VR = 3.0V VR = 3.3V VR = 5.0V VOUT = SHDN = VIN, VEXT = (VIN – 0.4V) REXTL EXT ON Resistance to GND — — — 15 14 10 20 19 14 No external components; VR = 3.0V VR = 3.3V VR = 5.0V VOUT = 0V, SHDN = VIN, VEXT = 0.4V Efficiency — 92 — % Note 1: VR = 3.0V, VIN = 4.5V, IOUT = 200mA VR = 3.3V, VIN = 5.0V, IOUT = 220mA VR = 5.0V, VIN = 7.5V, IOUT = 320mA 2: VR is the factory output voltage setting. |
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