A Product Line of Diodes Incorporated AP2132 2A CMOS LDO REGULATOR Description Pin Assignments The AP2132 series are positive voltage regulator ICs fabricated by (Top View) CMOS process. The ICs consist of a voltage reference, an error amplifier, a power transistor, a resistor network for setting output voltage, a current limit circuit for current protection, and a chip enable circuit. The AP2132 have features of large current, low dropout voltage, high output voltage accuracy, and low input voltage. The AP2132 provide a power good (PG) signal to indicate if the voltage level of V OUT reaches 92% of its rating value. And it operates with a V as low as IN 1.4V and V voltage 5V with output voltage programmable as low as PP 0.6V. PSOP-8 The AP2132 are available in 1.2V, 1.5V, 1.8V, 2.5V fixed output voltage versions and adjustable output voltage version. The fixed Features versions integrate the adjust resistors. It is also available in an adjustable version, which can set the output voltage with external resistor. If the pin of adjustable output voltage is to ground, it will Adjustable Output: 0.6V to 3.0V switch to fixed output voltage. Low Dropout Voltage: 300mV I = 2A, V = 1.2V OUT OUT Over Current and Over Temperature Protection The AP2132 series are available in PSOP-8 package. Enable Pin PSOP-8 Package with Thermal Pad Maximum Output Current: 2A Applications High Output Voltage Accuracy: 2% V Power Good Signal OUT Notebook Excellent Line/Load Regulation Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See A Product Line of Diodes Incorporated AP2132 Typical Applications Circuit 10k VCTRL PG V V IN CTRL EN AP2132 V VIN IN GND V OUT VOUT R1 ADJ C C C CTRL 1 2 1 F 10 F 10 F R2 0.6 (R1+R2) = V OUT R2 Typical Application of AP2132 for Adjustable Version Typical Application of AP2132 for Fixed Version 2 of 12 July 2014 AP2132 Diodes Incorporated www.diodes.com Document number: DS37393 Rev. 2 - 2