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Diodes Semiconductor Electronic Components Datasheet

AP2122 Datasheet

EXTREMELY LOW NOISE LDO REGULATOR

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AP2122 pdf
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
General Description
Features
Data Sheet
AP2122
The AP2122 series are positive voltage regulator ICs
fabricated by CMOS process. Each of these ICs con-
·
Low Dropout Voltage at IOUT=100mA: 150mV
Typical (Except 1.5V Version)
sists of a voltage reference, an error amplifier, a resis-
tor network for setting output voltage, a current limit
circuit for current protection and a chip enable circuit .
·
·
·
Low Standby Current: 0.1µA Typical
Low Quiescent Current: 25µA Typical
High Ripple Rejection: 70dB Typicalf=10kHz
The AP2122 series feature high ripple rejection, low · Maximum Output Current: More Than 150mA
dropout voltage, low noise, high output voltage accu-
(300mA Limit)
racy, and low current consumption which make them · Extremely Low Noise: 30µVrms (10Hz to
ideal for use in various battery-powered devices.
100kHz)
· Excellent Line Regulation: 4mV Typical
The AP2122 series have 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, · Excellent Load Regulation: 12mV Typical
3.2V and 3.3V versions.
· High Output Voltage Accuracy: ±2%
· Excellent Line and Load Transient Response
The AP2122 are available in standard SOT-23-5 pack-
age.
·
Compatible with Low ESR Ceramic Capacitor (as
Low as 1µF)
Applications
· Mobile Phones, Cordless Phones
· MP3/4
· Portable Electronic Devices
· Cameras, Video Recorders
· Sub-board Power Supplies for Telecom Equip-
ment
· Battery Powered Equipment
May. 2010 Rev. 1. 5
SOT-23-5
Figure 1. Package Type of AP2122
BCD Semiconductor Manufacturing Limited
1


Diodes Semiconductor Electronic Components Datasheet

AP2122 Datasheet

EXTREMELY LOW NOISE LDO REGULATOR

No Preview Available !

AP2122 pdf
HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR
Pin Configuration
K Package
(SOT-23-5)
VOUT 1
GND 2
VIN 3
5 NC
4 CE
Figure 2. Pin Configuration of AP2122 (Top View)
Data Sheet
AP2122
Pin Description
Pin Number
1
2
3
4
5
Pin Name
VOUT
GND
VIN
CE
NC
Regulated output voltage
Function
Ground
Input voltage
Active high enable input pin. Logic high=enable, logic low=shutdown
No connection
May. 2010 Rev. 1. 5
BCD Semiconductor Manufacturing Limited
2


Part Number AP2122
Description EXTREMELY LOW NOISE LDO REGULATOR
Maker BCD Semiconductor
Total Page 20 Pages
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