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ISSUED DATE :2003/08/01 REVISED DATE :2006/03/29D
GE1084
5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
The GE1084 is a low dropout positive adjustable or fixed mode regulator with minimum of 5.0A output current capability .The product is specifically designed to provide well regulated supply for low voltage IC applications such as high speed bus termination and low current 3.3v logic supply. GE1084 is also well suited for other applications such as VGA cards. GE1084 is guaranteed to have lower than 1.5V dropout at full load current making it ideal to provide well regulated outputs of 1.25 to 3.3V with 4.7 to 12V input supply.
Description
Features & maximum dropout at full load current 1.5V
Package Dimensions
&Built-in thermal shutdown &Output current limiting &Adjustable output voltage or fixed 1.5V,1.8V,2.5V,3.3V,5.0V &Fast transient response &Good noise rejection
REF. A b c D E L4 L5
Millimeter Min. Max. 4.40 4.80 0.76 1.00 0.36 0.50 8.60 9.00 9.80 10.4 14.7 15.3 6.20 6.60
REF. c1 b1 L e L1 Ø A1
Millimeter Min. Max. 1.25 1.45 1.17 1.47 13.25 14.25 2.54 REF. 2.60 2.89 3.71 3.96 2.60 2.80
Typical Circuit
Block Diagram
Pin Descriptions
Name Adj (GND) Vout O I/O PIN# 1 2 Adjustable (Ground only for fixed mode) The output of the regulator. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability. The input pin of regulator .Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response .This pin must always be 1.5V higher than Vout in order for the device to regulate properly. FUNCTION
Vin
I
3
GE1084
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ISSUED DATE :2003/08/01 REVISED DATE :2006/03/29D
Absolute Maximum Ratings
Symbol Vin PD TST TOP DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range Parameter Ratings -0.3 to 12 Internally Limited -65 ~ + 150 0 ~ + 150 : : Unit V
Electrical Characteristics
Symbol VREF Parameter GE1084ADJ GE1084-1.5 GE1084-1.8 Output Voltage GE1084-2.5 GE1084-3.3 GE1084-5.0 Line Regulation GE1084XXX GE1084ADJ GE1084-1.5 Load Regulation GE1084-1.8 GE1084-2.5 GE1084-3.3 GE1084-5.0 Vo ILIM IMIN IADJ IQ Dropout Voltage Current Limit Minimum Load Current Adjust Pin Current Quiescent Current Temperature Stability JA JC Thermal Resistance Junction-to-Ambient(No heat sink ;No air flow) Thermal Resistance Junction-to-Case Control Circuitry/Power Transistor Conditions(Notes) Io=10mA, Tj=25 : , (Vin-Vout )=1.5V Io=10mA, Tj=25 : , 3.0V Vin 12V Io=10mA, Tj=25 : , 3.3V Vin 12V Io=10mA, Tj=25 : , 4.0V Vin 12V Io=10mA, Tj=25 : , 4.8V Vin 12V Io=10mA, Tj=25 : , 6.5V Vin 12V Io=10mA, Vout+1.5V
