AP1115AY18G-13 Diodes Incorporated

AP1115 0.6A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR Description Pin Assignments AP1115 is a low dropout positive adjustable or fixed mode regulator AP1115A with 0.6A 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. AP1115 is also well suited for other applications such as VGA cards. AP1115 is guaranteed to have <1.3V dropout at full load current making it ideal to provide well regulated outputs of 1.25V to 5V with up to 18V input supply. Features 1.3V Maximum Dropout at Full Load Current AP1115B Fast Transient Response Output Current Limiting Built-In Thermal Shutdown Good Noise Rejection 3-Terminal Adjustable or Fixed 1.5V / 1.8V / 2.5V / 2.8V/ 3.0V / 3.3V / 3.5V / 5.0V Lead Free Package: SOT89-3L Totally Lead-Free RoHS Compliant (Notes 1 & 2) SOT89-3L: Available in Green Molding Compound (No Br, Sb) Halogen and Antimony Free. Green Device (Note 3) Applications PC Peripheral Communication Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See AP1115 Typical Applications Circuit 5V 5V C1 C1 100uF 100uF VIN VIN GND Adj R1 R2 V O 121 121 2.5V/0.5A VOUT VOUT 3.3V/0.5A C2 C2 100uF 100uF AP1115A (5V/3.3V Fixed Output) AP1115 A (5V/2.5V Adj Output) 5V 5V C1 100uF C1 100uF V O VOUT VOUT 2.5V/0.5A 3.3V/0.5A C2 100uF C2 R1 VIN VIN 100uF 121 Adj GND R2 121 AP1115B (5V/2.5V Adj Output) AP1115B (5V/3.3V Fixed Output) R 2 Note: x + V = V (1 ) o REF R1 Pin Descriptions Pin Name I/O Function A resistor divider from this pin to the V pin and ground sets the output voltage (Ground only for Fixed- OUT Adj (GND) I Mode). The output of the regulator. A minimum of 10uF capacitor (0.15 ESR 20 ) must be connected from this V O OUT pin to ground to insure stability. The input pin of regulator. Typically a large storage capacitor (0.15 ESR 20 ) is connected from this pin V I to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load IN transient response. This pin must always be 1.3V higher than V in order for the device to regulate properly. OUT 2 of 8 August 2012 AP1115 Diodes Incorporated www.diodes.com Document number: DS31025 Rev. 11 - 2