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RT9172F-21CT Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT9172F-21CT Datasheet(HTML) 1 Page - Richtek Technology Corporation |
1 / 16 page Preliminary RT9172 DS9172-03 April 2002 www.richtek-ic.com.tw 1 3A Fixed Output Voltage LDO Regulator General Description The RT9172 series of low-dropout linear regulators operate from a +2.25V to +6.0V input supply. A wide range of preset output voltage options is available. These low dropout linear regulators respond very fast to step changes in load, which are suitable for low voltage microprocessor applications. The RT9172 uses an internal PMOS as the pass device, which does not cause extra GND current in heavy load and dropout condition. The shutdown mode of low operation current makes the IC suitable for power-saving systems. The other features include current limiting and over temperature protection. Ordering Information RT9172 - Features Low Dropout Voltage Low Ground Pin Current Load Regulation of 0.4% at 3A 0.5 µµµµA Quiescent Current in Shutdown Mode Guaranteed Output Current of 3A DC Available in TO-263 and TO-220 Packages Output Voltage Accuracy ±±±±1.5% Error Flag Indicates Output Status Sense Option Improves Better Load Regulation Extremely Low Output Capacitor Requirements Over-temperature/Over-current Protection Applications Microprocessor Power Supplies GTL, GTL+, BTL, and SSTL Bus Terminators Power Supplies for DSPs SCSI Terminator Post Regulators High Efficiency Linear Regulators Battery Chargers Other Battery Powered Applications Pin Configurations Part Number Pin Configurations RT9172- CT (Plastic TO-220) TOP VIEW 1. VIN 2. GND (TAB) 3. VOUT RT9172- CM (Plastic TO-263) TOP VIEW 1. VIN 2. GND (TAB) 3. VOUT RT9172- CG (Plastic SOT-223) TOP VIEW 1. VIN 2. GND (TAB) 3. VOUT To be continued Operating temperature range C: Commercial standard Package type T5 : TO-220-5 M5 : TO-263-5 T : TO-220 M : TO-263 G : SOT-223 Output voltage 15 : 1.5V 16 : 1.6V : 32 : 3.2V 33 : 3.3V S: Pin out exchange N : Pin 5 bond sense F : Pin 5 bond flg 12 3 123 123 |
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