AP1118 1A Positive Low Dropout Fixed-Mode Regulator With EN Function Features General Description AP1118 is a low dropout 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 3.3V logic supply. AP1118 is also well suited for other applications such as VGA cards. AP1118 is guaranteed to have <1.4V dropout at full load current making it ideal to provide well regulated outputs of 1.25 to 12V with up to 18V input supply. The AP1118 offers a TTL - Logic compatible enable pin. *1.4V maximum dropout at full load current transient response *Output current limiting *Built-in thermal shutdown *Packages: TO220-5, TO252-5, TO263-5, SOP8 *Good noise rejection *Fixed Output 1.5V, 1.8V, 2.5V, 3.3V, 5.0V, 9.0V, 12V *Enable function *Fast Applications * * * PC peripheral Communication CDROM.. Ordering Information AP 1118 X XX X X Low Dropout Regulator Vout Package 15 : 1.5V 18 : 1.8V 25 : 2.5V 33 : 3.3V 50 : 5.0V 90 : 9.0V 12 : 12V D : TO252-5L T : TO220-5L K : TO263-5L S : SOP-8L Lead Free Blank : Normal L : Lead Free Package Packing Blank : Tube A : Taping Typical Circuit 5V C1 100uF Vin EN Tab is Vout Vout 3.3V/1A NC C2 100uF GND ( 5V/3.3V fixed output ) This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 0.2 1/10 Feb. 10, 2004 AP1118 1A Positive Low Dropout Fixed-Mode Regulator With EN Function Connection Diagram 5 PIN TO252/TO263 5 PIN TO220 ( Top View ) 5 Vin 4 EN 5 Vin 4 EN 3 Vout 3 Vout 2 NC 2 NC 1 GND 1 GND Tab is Vout Tab is Vout SOP-8L ( Top View ) Vout 5 4 Vin Vout 6 3 EN Vout 7 2 Vout Vout 8 1 GND Pin Descriptions NAME FUNCTION GND Ground. Vout The output of the regulator. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability. Vin 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. EN The input pin of regulator. TTL/CMOS compatible input Logic high = disable output, Logic Low or open = output enable. (internal pull-down resistor~100 K). NC No connection. Anachip Corp. www.anachip.com.tw Rev.0.2 2/10 Feb. 10, 2004 AP1118 1A Positive Low Dropout Fixed-Mode Regulator With EN Function Absolute Maximum Ratings Characteristics Symbol Values Unit DC Supply Voltage Vin -0.3 to 18 V Enable Pin Voltage VEN 7 V Power Dissipation PD Internally Limited Storage Temperature TST -65 to +150 Operating Junction Temperature Range TOP. 0 to +150 oC oC Electrical Characteristics (Under Operating Conditions) PARAMETER CONDITIONS MIN TYP MAX UNIT 1.470 1.500 1.530 V 1.764 1.800 1.836 V 2.450 2.500 2.550 V 3.235 3.300 3.365 V 4.900 5.000 5.100 V 8.820 9.000 9.180 V 11.760 12.000 12.240 V 0.2 % 12 15 mV 15 18 mV 20 25 mV 26 33 mV 40 50 mV 70 90 mV 100 120 mV 1.3 1.4 V o AP1118-1.5 AP1118-1.8 AP1118-2.5 Output Voltage AP1118-3.3 AP1118-5.0 AP1118-9.0 AP1118-12.0 Line Regulation AP1118-XXX AP1118-1.5 AP1118-1.8 AP1118-2.5 Load Regulation AP1118-3.3 AP1118-5.0 AP1118-9.0 AP1118-12.0 Dropout Voltage (VIN-VOUT) AP1118- 1.5/1.8 2.5/3.3/5.0/9.0/12 IOUT = 10mA, TJ = 25 C, 3VVIN15V o IOUT = 10mA, TJ = 25 C, 3.3VVIN15V o IOUT = 10mA, TJ = 25 C, 4VVIN15V o IOUT = 10mA, TJ = 25 C, 4.8VVIN15V o IOUT = 10mA, TJ = 25 C, 6.5VVIN15V o IOUT = 10mA, TJ = 25 C, 10.5VVIN18V o IOUT = 10mA, TJ = 25 C, 13.5VVIN18V IO=10mA,VOUT+1.5V