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AP2121

High Speed, Extremely Low Noise LDO Regulator

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Description

The AP2121 series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs 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 (5-pin products only). The AP2121 series feature high supply voltage 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 devices. The AP2121 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.85V, 3.0V, 3.2V and 3.3V versions.

Application(s)

· Mobile Phones, Cordless Phones · Wireless Communication Equipment · Portable Games · Cameras, Video Recorders · Sub-board Power Supplies for Telecom Equipment · Battery Powered Equipment

Feature(s)

· Low Dropout Voltage at IOUT=100mA: 150mV Typical (Except 1.2V, 1.3V and 1.5V Versions) · Low Standby Current: 0.1μA Typical · Low Quiescent Current: 25μA Typical · High Ripple Rejection: 70dB Typical (F=1kHz) · Output Current: More Than 200mA (300mA Limit) · Extremely Low Noise: 30μVrms (10Hz to 100kHz) · Excellent Line Regulation: 4mV Typical · Excellent Load Regulation: 12mV Typical · High Output Voltage Accuracy: ±2% · Excellent Line Transient Response and Load Transient Response · Compatible with Low ESR Ceramic Capacitor (as Low as 1μF)

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Output options Fixed
Iout (A) 0.2
Vin (Max) (V) 6
Vin (Min) (V) 2
Vout (min) 1.2
Vout (max) 3.3
Fixed Vout (V) 1.2, 1.3, 1.5, 1.8, 2.5, 2.8, 3.0, 3.2, 3.3
Iq (typ) (µA) 25
Accuracy 25C 2%
Noise uV RMS 10-100 kHz 30
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.5
PSRR (dB) 1kHz 70
Operating Temperature (Ambient) (°C) -40 to 85 (°C)
Enable Active H
Channels 1
Output Discharge no
Iq (max)(µA) 50
VCTL function no

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AP2121AK-1.3TRE1

AP2121AK-1.3TRE1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2999 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2121AK-1.5TRE1

AP2121AK-1.5TRE1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2989 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2121AK-1.8TRE1

AP2121AK-1.8TRE1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2991 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2121AK-1.8TRG1

AP2121AK-1.8TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 5525 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 442 9/16/2021 Europe, Asia, North America Buy Now
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AP2121AK-2.5TRG1

AP2121AK-2.5TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet 6000 9/17/2021 United States Buy Now
Mouser Electronics Inc. 679 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 3810 9/16/2021 Europe, Asia, North America Buy Now
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AP2121AK-3.0TRE1

AP2121AK-3.0TRE1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 1918 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2121AK-3.3TRE1

AP2121AK-3.3TRE1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 3711 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP2121AK-3.3TRG1

AP2121AK-3.3TRG1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet EU 3000 9/17/2021 Germany Buy Now
Arrow Electronics 3000 9/17/2021 United States Buy Now
Farnell, An Avnet Company 5900 9/17/2021 England Buy Now
Farnell, An Avnet Company 5900 9/17/2021 England Buy Now
Mouser Electronics Inc. 453 9/17/2021 South America, North America, Asia, Europe, Middle East Buy Now
RS Components 15095 9/17/2021 England Buy Now
Future Electronics - Europe 225000 9/16/2021 England Contact Sales
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PCNs

Product Change Notices

PCN # Issue Date Implementation Date Subject
PCN-2464 2020-04-28 2020-10-28 Device End of Life (EOL)
PCN-2343 2018-05-15 2018-08-15 Qualification of Additional Bill of Materials (BOM), Fab Source for Select Products with Top Marking Change on Select Product
PCN-2246 2017-06-28 2017-09-28 Additional Qualified Assembly/Test (A/T) Site – Chengdu A/T (CAT) with Part Marking Update