AP2120 BCDSEMI [BCD Semiconductor Manufacturing Limited], AP2120 Datasheet

AP2120

Manufacturer Part Number

AP2120

Description

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR

Manufacturer

BCDSEMI [BCD Semiconductor Manufacturing Limited]

Datasheet

1.AP2120.pdf (21 pages)

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Download datasheet (660Kb)

General Description

The AP2120 series are positive voltage regulator ICs

fabricated by CMOS process. Each of these ICs con-

sists of a voltage reference, an error amplifier, a resis-

tor network for setting output voltage, a current limit

circuit for current protection.

The AP2120 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 AP2120 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V,

2.8V, 3.0V, 3.2V, 3.3V and 5.0V versions.

The AP2120 are available in standard SOT-23 package.

Nov. 2009 Rev. 1. 0

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR

Figure 1. Package Types of AP2120

SOT-23

Features

Applications

Low Dropout Voltage at I

Typical (Except 1.2V, 1.3V and 1.5V Versions)

Low Quiescent Current: 25µA Typical

High Ripple Rejection: 65dB Typical （f=1kHz）

Output Current: More Than 150mA

Limit)

Extremely Low Noise: 15µVrms@V

1.3V, 1.5V (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)

Mobile Phones, Cordless Phones

Wireless Communication Equipment

Portable Games

Cameras, Video Recorders

Sub-board Power Supplies for Telecom Equip-

ment

Battery Powered Equipment

BCD Semiconductor Manufacturing Limited

OUT

=100mA: 200mV

Data Sheet

AP2120

OUT

(250mA

=1.2V,

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