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AP2125

300MA, High Speed, Extremely Low Noise CMOS LDO Regulator

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Description

The AP2125 series are 300mA, positive voltage regulator 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 rejection, low dropout voltage, low noise, high output voltage 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.

Application(s)

· CDMA/GSM Cellular Handsets · Battery-powered Equipments · Laptops, Palmtops, Notebook Computers · Hand-held Instruments · PCMCIA Cards · Portable Information Appliances

Feature(s)

· Excellent Ripple Rejection: 70dB Typical (1.8V Version) · Low Dropout Voltage: 65mV (IOUT = 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

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Output options Fixed
Iout (A) 0.3
Vin (Max) (V) 6
Vin (Min) (V) 2.3
Vout (min) 1.8
Vout (max) 4.2
Fixed Vout (V) 1.8, 2.5, 2.8, 3.0, 3.3, 4.15, 4.2
Iq (typ) (µA) 60
Accuracy 25C 2%
Noise uV RMS 10-100 kHz 50
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.3
PSRR (dB) 1kHz 70
Operating Temperature (Ambient) -40 to 85
Enable Active H
Channels 1
Output Discharge yes
Iq (max)(µA) 90
VCTL function no

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Technical Documents

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AP2125K-1.8TRG1

AP2125K-1.8TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 4 6/12/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 2550 6/12/2021 England Buy Now
Farnell, An Avnet Company 2550 6/12/2021 England Buy Now
Mouser Electronics Inc. 2697 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics - Asia 3000 6/11/2021 Singapore Contact Sales
Request Sample
AP2125K-2.5TRG1

AP2125K-2.5TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 40 6/12/2021 Europe, Asia, North America Buy Now
Request Sample
AP2125K-3.0TRG1

AP2125K-3.0TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 828 6/12/2021 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 3482 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2125K-3.3TRG1

AP2125K-3.3TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 60 6/12/2021 United States Buy Now
Digi-Key Electronics 5214 6/12/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 99 6/12/2021 England Buy Now
Farnell, An Avnet Company 99 6/12/2021 England Buy Now
Mouser Electronics Inc. 1590 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components Ltd. 10000 6/1/2021 Japan Buy Now
Request Sample
AP2125K-4.2TRE1

AP2125K-4.2TRE1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 355 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2125KS-1.8TRG1

AP2125KS-1.8TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2052 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2125KS-2.8TRG1

AP2125KS-2.8TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 1089 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2125KS-4.2TRG1

AP2125KS-4.2TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 3542 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2125N-1.8TRG1

AP2125N-1.8TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 120 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2125N-3.0TRG1

AP2125N-3.0TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 4127 6/12/2021 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 2530 6/12/2021 England Buy Now
Farnell, An Avnet Company 2530 6/12/2021 England Buy Now
Mouser Electronics Inc. 3646 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics - Europe 42000 6/11/2021 England Contact Sales
Request Sample
AP2125N-3.3TRG1

AP2125N-3.3TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Farnell, An Avnet Company 583 6/12/2021 England Buy Now
Farnell, An Avnet Company 583 6/12/2021 England Buy Now
Mouser Electronics Inc. 5 6/12/2021 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics - Europe 156000 6/11/2021 England Contact Sales
RS Components Ltd. 10600 6/1/2021 Japan Buy Now
Request Sample

PCNs

Product Change Notices

PCN # Issue Date Implementation Date Subject
PCN-2246 2017-06-28 2017-09-28 Additional Qualified Assembly/Test (A/T) Site – Chengdu A/T (CAT) with Part Marking Update
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site