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AS1374 Datenblatt(PDF) 2 Page - ams AG

Teilenummer AS1374
Bauteilbeschribung  Dual 200mA, Low-Noise, High-PSRR, Low Dropout Regulators
PDF  19 Pages
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Hersteller  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1374 Datenblatt(HTML) 2 Page - ams AG

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AS1374
Dual 200mA, Low-Noise, High-PSRR, Low Dropout Regulators
Datasheet
www.austriamicrosystems.com/LDOs/AS1374
Revision 1.8
1 - 18
1 General Description
The AS1374 is a low-noise, low-dropout linear regulator with two
separated outputs. Designed to deliver 200mA continuous output
current at each output pin, the LDOs can achieve a low 120mV
dropout for 200mA load current and are designed and optimized to
work with low-cost, small-capacitance ceramic capacitors.
An integrated P-channel MOSFET pass transistor allows the devices
to maintain extremely low quiescent current (30µA).
The AS1374 uses an advanced architecture to achieve ultra-low
output voltage noise of 20µVRMS and a power-supply rejection-ratio
of better than 85dB (@ 1kHz).
Two active-High enable pins allows to switch on or off each output
independently from each other.
The AS1374 requires only 1µF output capacitor for stability at any
load.
The device is available in a 6-bump WLP package.
Figure 1. AS1374 - Typical Application Circuit
2 Key Features

Preset Output Voltages: 1.2V to 3.6V (in 50mV steps)

Output Noise: 20µVRMS @ 100Hz to 100kHz

Power-Supply Rejection Ratio: 85dB @ 1kHz

Low Dropout: 120mV @ 200mA Load

Stable with 1µF Ceramic Capacitor for any Load

Guaranteed 200mA output

Pull-Down Option in Shutdown (factory set)

Extremely-Low Quiescent Current: 30µA

Excellent Load/Line Transient

Overcurrent and Thermal Protection

6-bump WLP Package
3 Applications
The devices are ideal for mobile phones, wireless phones, PDAs,
handheld computers, mobile phone base stations, Bluetooth portable
radios and accessories, wireless LANs, digital cameras, personal
audio devices, and any other portable, battery-powered application.
AS1374
5
GND
4
EN 2
2
VDD
3
OUT 1
6
EN 1
C1
1µF
Input
2V to 5.5V
Output1
1.2V to 3.6V
1
OUT 2
C2
1µF
C3
1µF
Output2
1.2V to 3.6V



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