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PDF AMS3109 Data sheet ( Hoja de datos )
| Número de pieza | AMS3109 | |
| Descripción | Micropower 700mA Low Noise Fast Transient Response LDO | |
| Fabricantes | AMS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AMS3109 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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AMS3109
Micropower 700mA Low Noise Fast Transient Response LDO
General Description
The AMS3109 is a high performance linear regulator
with very low dropout voltage and excellent transient
response. It is designed to operate with wide input
voltage range of 1.5 – 12Volts making it ideal for two
step conversion while maintaining high efficiency for
many power sensitive applications. The device is
capable of supplying 700mA of output current with a
typical dropout voltage of 550mV. The product is
available in adjustable output voltage.
The linear regulator has been optimized for noise
sensitive applications. The device includes an
Enable pin for electrical on/off of the regulator.
Forcing the Enable pin to logic low shuts down the
LDO and reduces the supply current below 1µA.
The product includes complete short-circuit and
thermal protection. The combination of these two
internal protection circuits gives the device a
comprehensive safety system to safe guard against
extreme adverse operating conditions.
The AMS3109 is available in a thermally enhanced
SOIC-8 EDP package, and it is rated for -40°C to
+125°C temperature range.
Typical Application
Features
• VIN range: 1.5 – 12V
• Adjustable output voltage as low as 0.6V
• 700mA maximum output current
• 550mV typical dropout voltage at 700mA
• Low self noise
• Enable (EN) pin for LDO on/off
• 120µA typical supply current
• ByPass (CBYP) Pin for low PSRR and output
noise
• PSRR > 40dB at 10KHz
• Stable with Electrolytic, Tantalum or
Ceramic capacitors
• Current Limit protection
• Over-Temperature Shutdown
• -40 to +125°C temperature range
• Thermally enhanced SOIC-8 exposed
paddle package
• RoHS & WEEE compliant
Applications
• ASIC Power Supplies In:
¾ Set-top Boxes, Desktops, Notebooks
¾ Graphic Cards, Printers and Copiers
• DVD, Blue-Ray DVD writers
• LCD TVs and LCD monitors
• Infotainment
• Wireless & RF: applications
• DSP and FPGA Power Supplies
• Medical Instrumentation
• SMPS Post-Regulator
02/11/2010
www.advanced-monolithic.com
1
Phone (925) 443-0722
Fax (925) 443-0723
1 page  
AMS3109
Micropower 700mA Low Noise Fast Transient Response LDO
Typical Performance Characteristics (TA = 25°C unless otherwise specified)
700
600
500
400
300
200
100
0
0
VDO vs. Output Current
100°C
25°C
‐50°C
VOUT = 1.8V
100 200 300 400 500 600 700
Output Current (mA)
Load Transient
50mA to 550mA, VOUT=1.8V, VIN=3.3V CIN= COUT=4.7µF
VDO vs. Temperature (IO = 700mA)
700
600
500
400
300
200
-50
-25 0 25 50 75
Ambient Temperature (°C)
100
Enable Start-Up
IOUT = 0 to 350mA, VOUT = 1.8V, VIN = 3.0V, CIN=COUT=10µF
02/11/2010
www.advanced-monolithic.com
5
Phone (925) 443-0722
Fax (925) 443-0723
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AMS3109.PDF ] | |
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