Diodes Incorporated — Analog and discrete power solutions
SOT25

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SOT25.png
Back to Linear and Low Dropout (LDO) Regulators

AP2129

300MA High Speed, Extremely Low Noise CMOS LDO Regulator

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The AP2129 is a 300mA, positive Voltage regulator ICs fabricated by CMOS process. The AP2129 provides two kinds of output voltage operation modes for setting the output voltage. Fixed output voltage mode senses the output voltage on VOUT, adjustable output voltage mode needs two resistors as a voltage divider. The AP2129 series have features of low dropout voltage, low noise, high output voltage accuracy, and low current consumption which make them ideal for use in various battery-powered devices. AP2129 has 1.0V, 1.2V, 1.8V, 2.6V, 2.8V, 3.0V and 3.3V fixed voltage version and 0.8V to 4.5V adjustable voltage version.

Feature(s)

· Wide Operating Voltage: 1.8V to 6V · High Output Voltage Accuracy: ±2% · High Ripple Rejection: 65dB@ f=1kHz, 45dB@ f=10kHz · Low Standby Current: 0.1μA · Low Quiescent Current: 60μA Typical · Low Output Noise: 60μVrms · Short Current Limit: 50mA · Over Temperature Protection · Compatible with Low ESR Ceramic Capacitor: 1μF for CIN and COUT · Excellent Line/Load Regulation · Soft Start Time: 50μs · Auto Discharge Resistance: RDS(ON)=60Ω

Application(s)

· Datacom · Notebook Computers · Mother Board

Product Specifications

Product Parameters

Iq (max) (µA) 90
Iq (typ) (µA) 60
AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Type LDO
Output options Adjustable & Fixed
Iout (A) 0.3
Vin (Max) (V) 6
Vin (Min) (V) 1.8
Vout (min) 0.8
Vout (max) 1.2
Fixed Vout (V) 1.0, 1.2, 3.3
Adjustable VFB (V) 0.8
Accuracy 25C 2
Noise uV RMS 10-100 kHz 60
VDROPOUT (Max) (V) at Max Current and Max Ouput Voltage 0.3
PSRR (dB) 1kHz 68
Operating Temperature (Ambient) (°C) -40 to 85
Enable Active Yes (High)
Channels 1
Output Discharge Yes
Power Good No
Reverse Protection No
VCTL Function No

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf