GL1147

ISSUED DATE :2004/12/06 REVISED DATE : G L 11 4 7 - 5 0 The GL1147-50 is a low dropout at positive fixed-mode regulator with minimum of 1A 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 logic supply. GL1147-50 is also well suited for other applications such as VGA cards .GL1147-50 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated outputs 5.0V with 6.4V to 12V input supply. Description Features & 1.4Vmaximum dropout full load current &Fast transient response &Output current limiting &Built-in thermal shutdown &Good noise rejection Applications & peripheral PC &Communication Package Dimensions SOT-223 REF. A C D E I H Millimeter Min. Max. 6.70 7.30 2.90 3.10 0.02 0.10 10 C 0C 0.60 0.80 0.25 0.35 REF. B J 1 2 3 4 5 Millimeter Min. Max. 13 T YP. C 2.30 REF. 6.30 6.70 6.30 6.70 3.30 3.70 3.30 3.70 1.40 1.80 Typical Circuit Block Diagram 1 3 2 1/3 ISSUED DATE :2004/12/06 REVISED DATE : Pin Descriptions Name I/O I I O PIN# 1 2 3 Vin Gnd Vout FUNCTION 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 1.3V higher than Vout in order for the device to regulate properly. A resistor divider from this pin to the Vout pin and ground sets the output voltage (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. Absolute Maximum Ratings Symbol Vin PD TST TOP DC Supply Voltage Power Dissipation Storage Temperature Operating Junction Temperature Range Parameter Ratings 6.4 to 12 Internally Limited -65 ~ + 150 0 ~ + 150 : : Unit V Electrical Characteristics PARAMETER Output Voltage Line Regulation Load Regulation Dropout Voltage (VIN-VOUT) Current Limit Minimum Load Current Thermal Regulation Ripple Rejection Vout CONDITIONS Io=10mA,Tj=25 : ,6.5V Vin 12V Io=10mA,6.5V