NOT RECOMMENDED FOR NEW DESIGN USE AP7330 or AP7343 AP133 Green 300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Description Pin Assignments The AP133 is a 300mA, adjustable output voltage, low dropout linear regulator. The device includes pass element, error amplifier, band- gap, current limit and thermal shutdown circuitry. The device is turned on when EN pin is set to logic high level. (Top View) The characteristics of low dropout voltage and less quiescent current make it good for low power applications, for example, battery IN 1 5 OUT powered devices. The typical quiescent current is approximately 40A from zero to maximum load. GND 2 Built-in current-limit and thermal-shutdown functions prevent IC from damage in fault conditions. EN 3 4 ADJ The AP133 is available in SOT25 and DFN2020-6 packages. SOT25 Features 300mA Low Dropout Regulator with EN (Top View) Very Low I : 40A Q Wide Input Voltage Range: 2V to 6V Adjustable Output: 1V to 5V 1 6 EN ADJ High PSRR: 65dB at 1kHz Ultra-fast Start-Up Time: 25s GND 2 5 NC Stable with Low ESR, 1F Ceramic Output Capacitor Excellent Load/Line Transient Response 3 OUT Low Dropout: 350mV at 300mA 4 IN Current Limit Protection Short Circuit Protection Thermal Shutdown Protection DFN2020-6 Ambient Temperature Range: -40C to +85C SOT25 and DFN2020-6: Available in Green Molding Applications Compound (No Br, Sb) Lead-Free Finish RoHS Compliant (Notes 1 & 2) Cellular Phones Smart Phones, PDAs Halogen and Antimony Free. Green Device (Note 3) MP3/MP4 Bluetooth Head Set Low Power Application Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 2. See NOT RECOMMENDED FOR NEW DESIGN AP133 USE AP7330 or AP7343 Typical Applications Circuit V V IN OUT IN OUT AP133 R1 1 mF 1 mF Enable ADJ EN GND R2 R 1 V V 1 OUT REF R 2 Pin Descriptions Package Name Pin Number Function SOT25 DFN2020-6 IN 1 3 Voltage input pin. Bypass to ground through at least 0.1F capacitor GND 2 2 Ground EN 3 1 Enable input, active high ADJ 4 6 Output feedback pin NC - 5 No connection OUT 5 4 Voltage output pin. Bypass to ground through 1F ceramic capacitor 2 of 16 AP133 June 2018 Diodes Incorporated www.diodes.com Document number: DS31122 Rev. 7 - 3