AP7342 DUAL 150mA HIGH PSRR LOW NOISE LDO WITH ENABLE Description Pin Assignments The AP7342 is a dual low dropout regulator with high output voltage accuracy, low R , high PSRR, low output noise and low quiescent DSON current. This regulator is based on a CMOS process. Each regulator includes a voltage reference, error amplifier, current limit circuit and an enable input to turn on/off output. With the integrated resistor network, fixed output voltage versions can be delivered. With its low power consumption and line and load transient response, the AP7342 is well suited for low power handheld communication equipment. The AP7342 is packaged in X2-DFN1212-6 package and allows for smallest footprint and dense PCB layout. Features Applications Low V and Wide V Range: 1.7V to 5.25V Smart Phone/PAD IN IN Guarantee Output Current: 150mA RF Supply V Accuracy 1% Cameras OUT Ripple Rejection: 75dB at 1kHz Portable Video Low Output Noise: 60Vrms from 10Hz to 100kHz Portable Media Player Quiescent Current as Low as 35A Wireless Adapter V Fixed 1.2V to 3.6V Wireless Communication OUT Totally Lead-Free & and 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 AP7342 Pin Descriptions Pin Number Pin Name Function 1 V Channel 1 Output Voltage Pin OUT1 2 V Channel 2 Output Voltage Pin OUT2 3 GND Ground Chanel 2 Enable Pin This pin should be driven either high or low and must not be floating. Driving this pin high 4 EN2 enables channel 2 output, while pulling it low puts Chanel 2 regulator into shutdown mode. 5 V Power Input Pin IN Chanel 1 Enable Pin This pin should be driven either high or low and must not be floating. Driving this pin high 6 EN1 enables channel 1 output, while pulling it low puts Chanel 1 regulator into shutdown mode. In PCB layout, it is preferred to use large copper area to cover this pad for better thermal Thermal PAD dissipation, then connect this area to GND or leave it open. However, do not use it as GND electrode function alone. Functional Block Diagram AP7342 (No Discharge) AP7342 (With Discharge) 2 of 14 March 2015 AP7342 Diodes Incorporated www.diodes.com Document number: DS37614 Rev. 2 - 2