AP1121ASL-13 Diodes Incorporated

AP1121 DUAL 1A LOW DROPOUT POSITIVE REGULATOR General Description Features AP1121 is a low dropout positive regulator which provides 1A 1.3V maximum dropout at full load current output current capability. The product is specifically designed to Fast transient response provide well-regulated supply for low voltage IC applications such Output current limiting for each channel as high-speed bus termination and low current 3.3V/2.5V or Built-in thermal shutdown for each channel 3.3V/1.8V logic supply. AP1121 is guaranteed to have <1.3V Good noise rejection dropout at full load current making it ideal to provide well Dual output ch1 = 3.3V, ch2 = 2.5V regulated outputs dual channels with up to 18V input supply. (ch2 = 1.8V for version B) SOP-8L: Available in Green Molding Compound (No Br, Sb) Lead Free Finish/ RoHS Compliant (Note 1) Applications PC peripheral Communication Ordering Information AP 1121 X S X - 13 Lead Free Packing Vout Package A : CH1=3.3V S : SOP-8L L : Lead Free 13 : Tape & Reel CH2=2.5V G : Green B : CH1=3.3V CH2=1.8V Package Packaging 13 Tape and Reel Device Code (Note 2) Quantity Part Number Suffix S SOP-8L 2500/Tape & Reel -13 AP1121XSL-13 Lead-free S SOP-8L 2500/Tape & Reel -13 AP1121XSG-13 Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at AP1121 DUAL 1A LOW DROPOUT POSITIVE REGULATOR Pin Assignments ( Top View ) 1 8 GND V OUT1 2 7 GND V IN1 AP1121 V 3 6 GND IN2 V 4 5 GND OUT2 SOP-8L Pin Descriptions Pin Name Descriptions GND Ground 3.3V(V ) OUT1 The output of the regulator. A minimum of 10uF capacitor (0.15 ESR 20) must be connected from this pin to ground to insure stability. 2.5V/1.8V (V ) OUT2 The input pin of regulator. Typically a large storage capacitor (0.15 ESR 20) is V IN connected from this pin to ground. AP1121 Rev. 5 2 of 7 FEBRUARY 2009 www.diodes.com Diodes Incorporated