AP2205

Document number: DS41592 Rev. 3 - 2

1 of 16

www.diodes.com

November 2020

© Diodes Incorporated

AP2205

WIDE INPUT VOLTAGE RANGE, 200mA ULDO REGULATOR

Description

The AP2205 series is a positive voltage regulator IC fabricated by a

high voltage EPNP process.

The AP2205 has various features such as a wide input voltage range,

high accuracy, high ripple rejection, low dropout voltage, low noise,

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, a chip enable circuit, a low power shutdown mode for

extended battery life, over-current protection, over-temperature

protection, as well as reverse current protection.

The AP2205 has 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 5.0V fixed

voltage versions and an adjustable voltage version.

The AP2205 is available in the space-saving SOT25 and SOT89

packages.

Features

•

Wide Input Voltage Range: 2.3V to 24V

•

Wide Output Voltage Range: 1.24V to 22V

•

Excellent Ripple Rejection: 60dB@ f = 1kHz

•

Low Dropout Voltage: VDROP = 100mV@ IOUT = 100µA

•

Low Ground Current

•

High Output Voltage Accuracy

•

Compatible with Low ESR Ceramic Capacitor

•

Excellent Line/Load Regulation

•

Thermal Shutdown Function

•

Moisture Sensitivity:



SOT89: Level 3 Per J-STD-020



SOT25: Level 1 Per J-STD-020

•

Terminals: SOT89/ SOT25: Finish—Mate Tin Plated Leads,

Solderable per MIL-STD-202, Method 208

•

Weight:



SOT89: 0.062 grams (Approximate)



SOT25: 0.0157 grams (Approximate)

•

For automotive applications requiring specific change

control (i.e. parts qualified to AEC-Q100/101/200, PPAP

capable, and manufactured in IATF 16949 certified facilities),

please contact us or your local Diodes representative.

https://www.diodes.com/quality/product-definitions/

•

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

•

Halogen- and Antimony-Free. “Green” Device (Note 3)

Pin Assignments

(Top View)

(Top View)

SOT89 (Note 1)

SOT89R (Note 1)

Note: The substrate/exposed pad should be connected to GND or open.

(Top View)

SOT25

Applications

•

Battery-powered Equipment

•

Laptop, Palmtops, Notebook Computers

•

Portable Information Appliances

•

Industrial/Automotive Applications

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.

1

2

3

GND

VOUT

GND

VIN

1

2

3

4

5

VIN

GND

EN

VOUT

ADJ/NC

1

2

3

GND

VIN

GND

VOUT