AP7384

Document number: DS40700 Rev. 2 - 2

1 of 12

www.diodes.com

November 2018

© Diodes Incorporated

AP7384

WIDE INPUT VOLTAGE RANGE, 50mA ULDO REGULATOR

Description

The AP7384 series is a positive voltage regulator IC.

The AP7384 has features of wide input voltage range, high accuracy,

low dropout voltage, current limit and ultra-low quiescent current

which make it ideal for use in various USB and portable devices.

The IC consists of a voltage reference, an error amplifier, a resistor

network for setting output voltage, a current limit circuit for current

protection, and a chip enable circuit.

The AP7384 has 2.8V, 3.3V, 5V and 7V fixed voltage version.

The AP7384 is available in space-saving SOT89, SOT23 and TO92

(Ammo Packing) packages.

Features



Wide Input Voltage Range: Up to 40V



Low Dropout Voltage: VDROP = 500mV@IOUT = 50mA @ VOUT =

3.3V



Low Ground Current



High Output Voltage Accuracy



Compatible with Low ESR Ceramic Capacitor



Excellent Line/Load Regulation



Thermal Shutdown Function



Short Current Protection Function



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimo

ny Free. “Green” Device (Note 3)

Applications



E-Meter



Battery-powered Equipment



Laptop, Palmtops, Notebook Computers



Portable Information Appliances

Pin Assignments

(Top View)

SOT89

(Top View)

TO92 (Ammo Packing)

(Top View)

SOT23

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-

free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Typical Applications Circuit

1

2

3

VOUT

GND

VIN

1

2

3

VIN

GND

VOUT

GND

3

2

1

VIN

VOUT

GND