Diodes AP2125 Manuel d'utilisateur

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300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125
Data Sheet
1
BCD Semiconductor Manufacturing LimitedSep. 2012 Rev. 1. 5
General Description
The AP2125 series are 300mA, positive voltage regu-
lator ICs fabricated by CMOS process.
Each of these ICs is equipped with a voltage reference,
an error amplifier, a resistor network for setting output
voltage, a chip enable circuit, a current limit circuit and
OTSD (over temperature shut down) circuit to prevent
the IC from over current and over temperature.
The AP2125 series have features of high ripple rejec-
tion, low dropout voltage, low noise, high output volt-
age accuracy and low current consumption which
make them ideal for use in various battery-powered
apparatus.
The AP2125 have 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.15V
and 4.2V fixed voltage versions.
These ICs are available in tiny SC-70-5 and SC-82
packages as well as industry standard SOT-23-3 and
SOT-23-5 packages.
Features
· Excellent Ripple Rejection: 70dB Typical (1.8V
Version)
· Low Dropout Voltage: 65mV (I
OUT
=100mA,
3.3V Version)
· Low Standby Current: 0.01µA Typical
· Low Quiescent Current: 60µA Typical
· Extremely Low Noise: 50µVrms Typical
· Maximum Output Current: 300mA (Min.)
· High Output Voltage Accuracy:
±2%
· Compatible with Low ESR Ceramic Capacitor
· Excellent Line/Load Regulation
Applications
· CDMA/GSM Cellular Handsets
· Battery-powered Equipments
· Laptops, Palmtops, Notebook Computers
· Hand-held Instruments
· PCMCIA Cards
· Portable Information Appliances
Figure 1. Package Types of AP2125
SOT-23-3 SOT-23-5 SC-70-5
SC-82
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Résumé du contenu

Page 1 - Applications

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125 Data Sheet1BCD Semiconductor Manufacturing LimitedSep. 2012 Re

Page 2 - Pin Description

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125 Data Sheet10BCD Semiconductor Manufacturing LimitedSep. 2012 R

Page 3 - Functional Block Diagram

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Page 4 - Ordering Information

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125 Data Sheet12BCD Semiconductor Manufacturing LimitedSep. 2012 R

Page 5

13Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125

Page 6 - Electrical Characteristics

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125 Data Sheet14BCD Semiconductor Manufacturing LimitedSep. 2012 R

Page 7

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Page 8

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Page 10

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Page 11 - Data Sheet

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Page 12

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Page 13

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Page 14 - Figure 11. Current Limit

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Page 15

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Page 17

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Page 18

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Page 19

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Page 20

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Page 21

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Page 22 - Typical Application

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125 Data Sheet4BCD Semiconductor Manufacturing LimitedSep. 2012 Re

Page 23 - SOT-23-3 Unit: mm(inch)

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2125 Data Sheet5BCD Semiconductor Manufacturing LimitedSep. 2012 Re

Page 24 - SOT-23-5 Unit: mm(inch)

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Page 25 - SC-70-5 Unit: mm(inch)

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Page 26 - SC-82 Unit: mm(inch)

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Page 27

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