AP7315 150mA HIGH PSRR LOW NOISE LDO WITH ENABLE Description Pin Assignments The AP7315 is a low dropout regulator with high output voltage accuracy, low R , high PSRR, low output noise and low DS(ON) quiescent current. This regulator is based on a CMOS process. The AP7315 includes a voltage reference, error amplifier, current limit circuit and an enable input to turn it on and off. With the integrated resistor network fixed output voltage versions can be delivered. With its low power consumption and line and load transient response, the AP7315 is well suited for low power handheld communication equipment. Pin 1 V , Pin 2 GND, Pin 3 EN, Pin 4 V OUT IN The AP7315 is packaged in X2-DFN1010-4, SOT23 and SOT25 packages and allows for smallest footprint and dense PCB layout. (Top View) (Top View) V IN Features GND 3 3 Low V and Wide V Range: 1.7V to 5.25V IN IN Guarantee Output Current,150mA V Accuracy 1% OUT Ripple Rejection 75dB at 1kHz Low Output Noise, 60Vrms from 10Hz to 100kHz 1 2 1 2 Quiescent Current as Low as 35A V V V GND OUT IN OUT V Fixed 1.1V to 3.3V OUT SOT23 (SA) SOT23 (SR) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free, Green Device (Note 3) (Top View) V NC OUT Applications 5 4 Smart Phone/PAD RF Supply Cameras Portable Video Portable Media Player 1 2 Wireless Adapter 3 Wireless Communication V GND EN/NC IN SOT25 Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See AP7315 Typical Applications Circuit V IN V OUT V V IN OUT AP7315 COUT C OUT C CININ 0.47uF 0.47F 0.47F EN 0.47uF GND Pin Descriptions Pin Number Pin Function X2- Name SOT25 SOT23 (SA) SOT23 (SR) DFN1010-4 V 1 5 2 2 Power output pin OUT GND 2 2 3 1 Ground EN 3 Enable pin. Active high V 4 1 1 3 Power input pin IN In PCB layout, prefer to use large copper area to cover this pad for better thermal Thermal dissipation, then connect this area to GND or leave it open. However, do not use it PAD as GND electrode function alone. EN/NC 3 Enable pin. Active high/ NC, No connection NC 4 No connection Functional Block Diagram V V V OUT V OUT IN IN - - + + VREF VREF Current Limit Current Limit EN GND EN GND AP7315 (Non Discharge) AP7315D (With Discharge) 2 of 23 AP7315 December 2015 Diodes Incorporated www.diodes.com Document number: DS38352 Rev. 1 - 2 NEW PRODUCT