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AP2204
Document number: DS37168 Rev. 3 - 2
1 of 18
www.diodes.com
June 2016
© 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: 2.3V to 24V
Wide Output Voltage Range: 1.24V to 22V
Excellent Ripple Rejection: 60dB@ f = 1kHz
Low Dropout Voltage: V
DROP
= 100mV@ I
OUT
= 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) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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) (Top View)
SOT-89 (Option 1) SOT-89 (Option 2) SOT-89 (Option 1) SOT-89 (Option 2)
R (Note 4) R (Note 4) RA (Note 5) 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 or open.
5. The substrate/exposed pad should be connected to VIN or open.
6. The exposed pad should be connected to GND for better dissipation.
1
2
3
GND
VOUT
GND
VIN
1
2
3
VOUT
GND
VIN
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
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