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APL5336KI-TRG Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APL5336KI-TRG Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 18 page Copyright © ANPEC Electronics Corp. Rev. A.2 - Apr., 2008 APL5336 www.anpec.com.tw 1 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Source and Sink, 1.5A, Fast Transient Response Linear Regulator • Provide Bi-direction Output Currents -Sourcing and Sinking Current up to 1.5A • Built-in Soft-Start • Power-On-Reset Monitoring on VCNTL and VIN pins • Fast Transient Response • Stable with Ceramic Output Capacitors • ±20mV High System Output Accuracy over Load and Temperature Ranges • Adjustable Output Voltage by External Resistors • Current-Limit Protection • On-Chip Thermal Shutdown • Shutdown for Standby or Suspend Mode • Simple SOP-8 and SOP-8 with Exposed Pad (SOP-8P) Packages • Lead Free and Green Devices Available (RoHS Compliant) The APL5336 linear regulator is designed to provide a regulated voltage with bi-direction output current for DDR- SDRAM termination voltage. The APL5336 integrates two power transistors to source or sink load current up to 1.5A. It also features internal soft-start, current-limit, ther- mal shutdown and enable control functions into a single chip. The internal soft-start controls the rising rate of the output voltage to prevent inrush current during start-up. The current-limit circuit detects the output current and limits the current during short-circuit or current overload conditions. The on-chip thermal shutdown provides ther- mal protection against any combination of overload that would create excessive junction temperatures. The output voltage of APL5336 is regulated to track the voltage on VREF pin. An proper resistor divider connected to VIN, GND, and VREF pins is used to provide a half voltage of VIN to VREF pin. In addition, connect an exter- nal ceramic capacitor and a open-drain transistor to VREF pin for external soft-start and shutdown control. Pulling and holding the voltage on VREF below the en- able voltage threshold shuts down the output. The output of APL5336 will be high impedance after being shut down by VREF or the thermal shutdown function. Features General Description Applications • DDRII/III SDRAM Termination Voltage • Motherboard and VGA Card Power Supplies • Setop Box • SSTL-2/3 Termination Voltage Pin Configuration Simplified Application Circuit V CNTL +5V V OUT 0.9V / 0.75V V IN +1.8V/+1.5V Shutdown GND VREF VIN VOUT VCNTL 1 2 3 4 6 Enable APL5336 GND 2 7 VCNTL VREF 3 VOUT 4 6 VCNTL 5 VCNTL 8 VCNTL VIN 1 Top View of SOP-8 GND 2 7 NC VREF 3 VOUT 4 6 VCNTL 5 NC 8 NC VIN 1 Exposed Pad (connected to GND plane for better heat dissipation) Top View of SOP-8P |
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