AP2210
300mA RF ULDO REGULATOR
Description Pin Assignments
The AP2210 is a 300mA ULDO regulator which provides very low
noise, ultra low dropout voltage (typically 250mV at 300mA), very low
(Top View)
standby current (1A maximum) and excellent power supply ripple
VIN
rejection (PSRR 75dB at 100Hz) in battery powered applications,
3
such as handsets, PDAs and in noise sensitive applications, such as
RF electronics.
The AP2210 also features individual logic compatible
enable/shutdown control inputs, a low power shutdown mode for
1 2
extended battery life, over current protection, over temperature
GND VOUT
protection, as well as reversed-battery protection.
SOT-23-3
The AP2210 has 2.5V, 2.8V, 3.0V, 3.3V, 3.6V, 4.0V, 5.0V and ADJ
versions.
(Top View)
The AP2210 is available in space saving SOT-23-3 and SOT-23-5
5 VOUT
VIN 1
packages.
GND 2
Features
4 BYP/ADJ
EN 3
Up to 300mA Output Current
Excellent ESR Stability
SOT-23-5
Low Standby Current
Low Dropout Voltage: V = 250mV at 300mA
DROP
High Output Accuracy: 1%
Applications
Good Ripple Rejection Ability: 75dB at 100Hz and I = 100A
OUT
Cellular Phones
Tight Load and Line Regulation
Cordless Phones
Low Temperature Coefficient
Wireless Communicators
Over Current Protection
PDAs/Palmtops
Thermal Protection
PC Mother Board
Reverse-battery Protection
Consumer Electronics
Logic-controlled Enable
Lead-Free Packages: SOT-23-3, SOT-23-5
Totally Lead-Free; RoHS Compliant (Notes 1 & 2)
Lead-Free Packages, Available in Green Molding Compound:
SOT-23-3, SOT-23-5
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. Green Device (Note 3)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See
AP2210
Typical Applications Circuit (Note 4)
AP2210-3.0
V =4.0V V =3.0V
IN OUT
3 2
V
VIN
VOUT V
IN
OUT
C C
IN OUT
GND
1.0 F 2.2 F
1
V =4.0V AP2210-3.0
V =3.0V
IN OUT
1
5
V
IN VIN VOUT V
OUT
2
GND
C
C
IN OUT
2.2 F
1.0 F 3
4
EN BYP
C
BYP
100pF
For Fixed Version
AP2210-ADJ
5
1
V
VOUT V
IN VIN
OUT
2 R1
GND
V
EN
3 4
C C
EN ADJ
IN
OUT
R2
V = 1.25V*(1+R2/R1)
OUT
For Adjustable Version
o
Note 4: Dropout voltage is 250mV when T = +25 C. In order to obtain a normal output voltage, V +0.25V is the minimum input voltage which will result a low
A OUT
PSRR, imposing a bad influence on system. Therefore, the recommended input voltage is V +1V to 13.2V. For AP2210-3.0 version, its input voltage can
OUT
be set from 4V (V +1V) to 13.2V.
OUT
2 of 30
AP2210 June 2016
Diodes Incorporated
www.diodes.com
Document number: DS37517 Rev. 2 - 2