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TC1070 Datasheet(PDF) 9 Page - TelCom Semiconductor, Inc |
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TC1070 Datasheet(HTML) 9 Page - TelCom Semiconductor, Inc |
9 / 12 page TC1071 3 PRELIMINARY INFORMATION TC1071-01 6/13/97 100mA ADJUSTABLE CMOS LDO WITH SHUTDOWN ELECTRICAL CHARACTERISTICS: VIN = VOUT + 1V, IL = 0.1mA, CL = 3.3µF, SHDN > VIH, TA = 25 °C, unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Units ADJ Input IADJ Adjust Input Leakage Current — 50 — pA NOTES: 1. VR is the regulator output voltage setting. 2. TC VOUT = (VOUTMAX – VOUTMIN) x 106 VOUT x ∆T 3. 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. 4. Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value. 5. Ground pin current is the regulator pass transistor gate current. The total current drawn from the input supply is the sum of the load current, ground current and supply current (i.e. IIN = ISUPPLY + IGND + ILOAD). 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 = 10msec. 7. 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, qJA). Exceeding the maximum allowable power dissipation causes the device to initiate thermal shutdown. Please see Thermal Considerations section of this data sheet for more details. Pin No. (SOT-23A-5) Symbol Description 1VIN Unregulated supply input. 2 GND Ground terminal. 3 SHDN Shutdown control input. The regulator is fully enabled when a logic high is applied to this input. The regulator enters shutdown when a logic low is applied to this input. During shutdown, output voltage falls to zero and supply current is reduced to 0.05 microamp (typical). 4 ADJ Output voltage adjust terminal. Output voltage setting is programmed with a resistor divider from VOUT to this input. A capacitor may also be added to this input to resuce output noise (See Text). 5VOUT Regulated voltage output. PIN DESCRIPTION |
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