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300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP2126

Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited

Data Sheet

General Description

The AP2126 series are positive voltage regulator ICs

fabricated by CMOS process.

The AP2126 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.

AP2126 is available in 1.25V to 5.5V adjustable

voltage versions.

AP2126 series are available in SOT-23-5 Package.

Features

· Wide Operating Voltage: 3.0V to 6V

· High Output Voltage Accuracy: ±2%

· High Ripple Rejection:

68dB@ f=1kHz, 54dB@ f=10kHz

· Low Standby Current: 0.1μA

· Low Dropout Voltage: 170mV@300mA for

OUT

=3.3V, 140mV@300mA for V

OUT

=5.2V

· Low Quiescent Current: 60μA Typical

· Low Output Noise: 80μVrms@V

OUT

=1.25V

· Short Current Limit: 50mA

· Over Temperature Protection

· Compatible with Low ESR Ceramic Capacitor:

1μF for C

and C

OUT

· Excellent Line/Load Regulation

· Soft Start Time: 50μs

· Auto Discharge Resistance: R

DS(ON)

=60Ω

Applications

· Datacom

· Notebook Computers

· Mother Board

Figure 1. Package Type of AP2126

SOT-23-5

1 2 3 4 5 6 ... 11 12

Sommario

Pagina 1 - Applications

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21261Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited D

Pagina 2 - Functional Block Diagram

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP212610Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited

Pagina 3 - Ordering Information

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP212611BCD Semiconductor Manufacturing Limited Data SheetSep. 2012

Pagina 4

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Pagina 5 - Electrical Characteristics

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21262Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited D

Pagina 6

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21263BCD Semiconductor Manufacturing Limited Data SheetSep. 2012 R

Pagina 7

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21264Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited D

Pagina 8

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21265BCD Semiconductor Manufacturing Limited Data SheetSep. 2012 R

Pagina 9 - Sep. 2012 Rev. 1. 5

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21266Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited D

Pagina 10 - Typical Application

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21267BCD Semiconductor Manufacturing Limited Data SheetSep. 2012 R

Pagina 11

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21268Sep. 2012 Rev. 1. 5 BCD Semiconductor Manufacturing Limited D

Pagina 12

300mA HIGH SPEED, EXTREMELY LOW NOISE CMOS LDO REGULATOR AP21269BCD Semiconductor Manufacturing Limited Data SheetSep. 2012 R

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