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UCC387PWTR Datasheet(PDF) 1 Page - Texas Instruments |
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UCC387PWTR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page UCC386, UCC387, UCC388 LOW DROPOUT 200mA LINEAR REGULATOR SLUS377B - JULY 1999 - REVISED MAY 2000 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Precision Positive Linear Voltage Regulator D 0.2 V Dropout at 200 mA D Ensured Reverse Input/Output Voltage Isolation with Low Leakage D Adjustable Output Voltage (Down to 1.25 V) D Load Independent Low Quiescent Current (10 A typical) D Load Regulation of 5 mV from 0 mA to 200 mA D Logic Shutdown Capability D Shutdown Quiescent Current Below 2 A D Short Circuit Protection - Duty Cycle Limiting D Remote Load Voltage Sense for Accurate Load Regulation description The UCC386/7/8 positive linear pass regulator series is tailored for low-dropout applications where extremely low quiescent power is required. Fabricated with BiCMOS technology ideally suited for low input to output differential applications, the UCC386/7/8 will pass 200 mA while requiring only 200 mV of input voltage headroom. Quiescent current is typically less than 10 µA. To prevent reverse current conduction, on-chip circuitry limits the minimum forward voltage to 50 mV typical. Once the forward voltage limit is reached, the input-output differential voltage is maintained as the input voltage drops until undervoltage lockout disables the regulator. block diagram and application circuit UDG-98087 3 7 6 4 5 8 1 2 + – R1 R2 1.25 V OVERCURRENT, HICCUP CONTROL & THERMAL SHUTDOWN SWITCH CONTROL RS1 RS2 LOAD UCC388 ONLY FROM OPEN DRAIN SHUTDOWN COMMAND + + VOUT GND GND VSENSE VIN GND GND OFFB UCC386 UCC387 UCC388 R1 1.025 m 1.875 m 0 R2 625 k 625 k OPEN Copyright © 2000, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 8 7 6 5 VOUT GND GND VSENSE VIN GND GND OFFB SOIC DP PACKAGES (TOP VIEW) 1 2 3 4 8 7 6 5 VIN N/C N/C VOUT OFFB N/C VSENSE GND TSSOP PW PACKAGES (TOP VIEW) |
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