AP2120 查看數據表（PDF） - BCD Semiconductor

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AP2120

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR

BCD Semiconductor 

HIGH SPEED, EXTREMELY LOW NOISE LDO REGULATOR

General Description

Features

Data Sheet

AP2120

The AP2120 series are positive voltage regulator ICs · Low Dropout Voltage at IOUT=100mA: 200mV

fabricated by CMOS process. Each of these ICs con-

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

sists of a voltage reference, an error amplifier, a resis- · Low Quiescent Current: 25µA Typical

tor network for setting output voltage, a current limit

circuit for current protection.

·

·

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

Output Current: More Than 150mA (250mA

The AP2120 series feature high supply voltage ripple

Limit)

rejection, low dropout voltage, low noise, high output · Extremely Low Noise: 15µVrms@VOUT=1.2V,

voltage accuracy, and low current consumption which

1.3V, 1.5V (10Hz to 100kHz)

make them ideal for use in various battery-powered · Excellent Line Regulation: 4mV Typical

devices.

· Excellent Load Regulation: 12mV Typical

· High Output Voltage Accuracy: ±2%

The AP2120 series have 1.2V, 1.3V, 1.5V, 1.8V, 2.5V, · Excellent Line Transient Response and Load

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

Transient Response

· Compatible with Low ESR Ceramic Capacitor (as

The AP2120 are available in standard SOT-23 package.

Low as 1µF)

Applications

· Mobile Phones, Cordless Phones

· Wireless Communication Equipment

· Portable Games

· Cameras, Video Recorders

· Sub-board Power Supplies for Telecom Equip-

ment

· Battery Powered Equipment

Nov. 2009 Rev. 1. 0

SOT-23

Figure 1. Package Types of AP2120

BCD Semiconductor Manufacturing Limited

1

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