AP2204

Document number: DS37168 Rev. 5 - 2

1 of 18

www.diodes.com

July 2018

© Diodes Incorporated

AP2204

WIDE INPUT VOLTAGE RANGE, 150mA ULDO REGULATOR

Description

The AP2204 series is a positive voltage regulator IC fabricated by

high voltage EPNP process.

The AP2204 has features of 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, and a chip enable circuit.

The AP2204 has 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 5.0V fixed

voltage versions and adjustable voltage version.

The AP2204 is available in space-saving SOT-23-5, SOT-89 and

PSOP-8 packages.

Features



Wide Input Voltage Range: 2.6V 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



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



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

Applications



Battery-powered Equipment



Laptop, Palmtops, Notebook Computers



Portable Information Appliances

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.

Pin Assignments

(Top View)

(Top View)

(Top View)

SOT-89 (Option 1)

SOT-89 (Option 2)

SOT-89 (Option 2)

R (Note 4)

R (Note 4)

RA (Note 5)

(Top View)

(Top View)

(Top View)

(Top View)

SOT-89 (Option 1)

SOT-89 (Option 2)

SOT-23-5

PSOP-8

RB (Note 4)

RB (Note 4)

Notes:

4. The substrate/exposed pad should be connected to GND.

5. The substrate/exposed pad should be connected to VIN.

6. The exposed pad should be connected to GND for better dissipation.

1

2

3

GND

VOUT

GND

VIN

1

2

3

VIN

VOUT

VIN

GND

1

2

3

GND

VIN

GND

VOUT

1

2

3

GND

VIN

GND

VOUT

1

2

3

4

5

VIN

GND

EN

VOUT

ADJ/NC

1

2

3

4

8

7

6

5

VOUT

NC

NC

ADJ/NC

VIN

GND

NC

EN

Exposed

Pad

(Note 6)

1

2

3

GND

VOUT

GND

VIN