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PDF EMP5523-05SA08GRR Data sheet ( Hoja de datos )
| Número de pieza | EMP5523-05SA08GRR | |
| Descripción | 300mA CMOS Linear Regulator | |
| Fabricantes | Elite Semiconductor | |
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ESMT/EMP
EMP5523
Dual, High-PSRR, Low-Noise, Low-Dropout, 300mA
CMOS Linear Regulator
General Description
The EMP5523 series is a family of dual-channel CMOS
linear regulators featuring ultra-high power supply
rejection ratio (PSRR), low output voltage noise, low
dropout voltage, low quiescent current and fast
transient response. It guarantees delivery of 300mA
output current per regulator, and supports preset
output voltages ranging from 1.2V to 3.3V with 0.1V
increment (except for 1.85V and 2.85V).
The EMP5523 is well suited for portable battery-powered
application which requires high efficiency, low noise
and small board space. With 170mV low dropout
voltage at 300mA output current, EMP5523 sustains high
PSRR at very low input voltage which is common in
battery-powered application. The EMP5523 also
features 120µVRMS low output voltage noise without
the presence of a noise bypass capacitor, which fits the
application where noise and board space are both
concerned. Other features include thermal protection
and over-current protection. The EMP5523 is available in
SOP-8 package.
Features
300mA guaranteed output current
72dB typical PSRR at 1kHz (60dB typical at 10KHz)
120µVRMS output voltage noise (10Hz to 100kHz)
170mV typical dropout at 300mA
150µA typical quiescent current
Fast line and load transient response
2.5V to 5.5V input range
Stable with small ceramic output capacitors
Over temperature and over current protection
±2% output voltage tolerance
SOP-8 package available
RoHS compliant and Pb-free
Applications
Wireless handsets
PCMCIA cards
DSP core power
Hand-held instruments
Battery-powered systems
Portable information appliances
Typical Application Diagram
Typical Performance Characteristics
PSRR vs. Frequency
VIN=4.3V, VOUT=3.3V
Frequency (Hz)
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jun. 2009
Revision : 2.0
1/11
1 page  
ESMT/EMP
EMP5523
Note 3: Maximum Power dissipation for the device is calculated using the following equations:
PD
=
TJ(MAX)
θJA
-
TA
where TJ(MAX) is the maximum junction temperature, TA is the ambient temperature, and θ JA is the
junction-to-ambient thermal resistance.
Note 4: Dropout voltage is measured by reducing VIN until VOUT drops 100mV from its nominal value at VIN -VOUT =1V.
Dropout voltage does not apply to the regulator versions with VOUT less than 2.5V.
Note 5: Human body model: 1.5kΩ in series with 100pF.
Note 6: Condition does not apply to input voltages below 2.5V since this is the minimum input operating voltage.
Note 7: Typical Values represent the most likely parametric norm.
Note 8: For different output voltage, the noise can be approximately calculated using the following formula:
Noise = VOUT × 42 (μVRMS )
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jun. 2009
Revision : 2.0
5/11
5 Page 
ESMT/EMP
EMP5523
All rights reserved.
Important Notice
No part of this document may be reproduced or duplicated in any form or
by any means without the prior permission of ESMT.
The contents contained in this document are believed to be accurate at
the time of publication. ESMT assumes no responsibility for any error in this
document, and reserves the right to change the products or specification
in this document without notice.
The information contained herein is presented only as a guide or examples
for the application of our products. No responsibility is assumed by ESMT for
any infringement of patents, copyrights, or other intellectual property rights
of third parties which may result from its use. No license, either express ,
implied or otherwise, is granted under any patents, copyrights or other
intellectual property rights of ESMT or others.
Any semiconductor devices may have inherently a certain rate of failure.
To minimize risks associated with customer's application, adequate design
and operating safeguards against injury, damage, or loss from such failure,
should be provided by the customer when making application designs.
ESMT's products are not authorized for use in critical applications such as,
but not limited to, life support devices or system, where failure or abnormal
operation may directly affect human lives or cause physical injury or
property damage. If products described here are to be used for such kinds
of application, purchaser must do its own quality assurance testing
appropriate to such applications.
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Jun. 2009
Revision : 2.0
11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet EMP5523-05SA08GRR.PDF ] | |
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