AP7351D 150mA ULTRA-LOW QUIESCENT CURRENT LDO WITH ENABLE Description Pin Assignments The AP7351D is a low dropout regulator with high output voltage accuracy. The AP7351D includes a voltage reference, error amplifier, (Top View) (Bottom View) current limit circuit and an enable input to turn it on/off. With the integrated resistor network, fixed output voltage versions can be delivered. With its ultra-low quiescent current, the AP7351D is well suited for low-power handheld, wearable devices, and other battery-operated devices requiring an extended time period until new battery X2-DFN1010-4 (Type B) replacement. PIN1 V , PIN2 GND, PIN3 EN, PIN4 V OUT IN The AP7351D is available in the X2-DFN1010-4 (Type B) and SOT25 packages. (Top View) Features V 1 5 V IN OUT Low V and Wide V Range: 1.4V to 5.5V IN IN Guarantee Output Current, 150mA GND 2 Output Voltage Range: 0.8V to 4.5V NC V Accuracy: 1% EN 3 4 OUT Ripple Rejection up to 60dB at 1kHz Quiescent Current as Low as 0.5A SOT25 Typical Standby Current 0.02A Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Applications Halogen and Antimony Free. Green Device (Note 3) For automotive applications requiring specific change control Wearable Electronics (i.e. parts qualified to AEC-Q100, PPAP capable, and Sensor Module for Internet-Of-Things (IOT) manufactured in IATF 16949 certified facilities), please Wireless Communication Module contact us or your local Diodes representative. Battery-Operated Device AP7351D Pin Descriptions Pin Number Pin Name Function X2-DFN1010-4 SOT25 (Type B) 1 5 V Output Voltage Pin OUT 2 2 GND Ground Enable Pin 3 3 EN This pin should be driven either high or low and must not be floating. Driving this pin high enables the regulator, while pulling it low puts the regulator into shutdown mode 4 1 Power Input Pin V IN 4 NC No connection for fixed V versions. OUT In PCB layout, prefer to use large copper area to cover this pad for better thermal dissipation, EP Exposed Pad then connect this area to GND or leave it open. However, do not use it as GND electrode function alone Functional Block Diagram V OUT V IN - + VREF Current Limit EN GND AP7351D (With Discharge) Absolute Maximum Ratings (Note 5) Symbol Parameter Ratings Unit ESD HBM Human Body Mode ESD Protection > 2 kV ESD CDM Charge Device Model 500 V V Input Voltage 6.0 V IN V Input Voltage for EN Pin 6.0 V EN V Output Voltage -0.3 to V + 0.3 V OUT IN P Power Dissipation 400 mW D T Operating Ambient Temperature -40 to +85 C A T J Operating Junction Temperature +125 C T Storage Temperature STG -55 to +125 C Note: 5. Stresses beyond those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only and functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods can affect device reliability. Recommended Operating Conditions Symbol Parameter Min Max Unit V Input Voltage 1.4 5.5 V IN I Output Current 0 150 mA OUT T Operating Ambient Temperature -40 +85 C A 2 of 18 AP7351D 24 October 2019 Diodes Incorporated www.diodes.com Document number: DS42111 Rev. 2 - 2 NEW PRODUCT