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Número de pieza | EMP8738 | |
Descripción | High Accuracy 30mA CMOS LDO | |
Fabricantes | Elite Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de EMP8738 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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EMP8738
High Accuracy 30mA CMOS LDO
In SOT-23 Package
General Description
The EMP8738 features low output voltage noise, low
dropout voltage, low quiescent current and fast
transient response. It guarantees delivery of 30mA
output current and supports preset output voltages
ranging from 0.8V to 4.5V with 0.05V increment.
Based on its low quiescent current consumption, the
EMP8738 is ideal for battery-powered applications. The
high power supply rejection ratio of the EMP8738 holds
well for low input voltages typically encountered in
battery-operated systems. The regulator is stable with
small ceramic capacitive loads (1µF typical). The
EMP8738 is available in miniature 3-pin SOT-23-3
package.
Features
30mA guaranteed output current
170µV RMS output voltage noise (10Hz to 100kHz)
31mV typical dropout at 30mA
61µA typical quiescent current
Fast line and load transient response
4.75V to 5.25V input range
Stable with small ceramic output capacitors
Over temperature and over current protection
±35mV output voltage tolerance
Applications
Keep-Alive Supply
Battery-powered systems
Portable information appliances
EMP products are Halogen free and RoHS compliant.
Typical Application
Elite Semiconductor Memory Technology Inc./Elite Micro Power Inc.
Publication Date: Aug. 2011
Revision: 1.0
1/8
1 page ESMT/EMP
EMP8738
Typical Performance Characteristics
Unless otherwise specified, CIN = COUT = 1.0µF, TA = 25°C.
PSRR vs. Frequency (Vin=4.75V,Vout=4.5V)
-20 T
-30
-40
-50
-60
-70
Io=10mA
-80 Io=20mA
Io=30mA
-90
10 20
50 100 200 500 1k 2k
5k 10k 20k 50k
200k
Frequency(HZ)
Load Transient (Vout=4.5V, Iout=10mA to 30mA)
PSRR vs. Frequency(Vout=4.5V, Iout=10mA)
-20T T T T T
-30
-40
-50
-60
-70
-80 Vin=4.75V
Vin=5.25V
-90
10 20
50 100 200 500 1k 2k 5k 10k 20k 50k
Frequency(HZ)
200k
Line Transient (Vin=4.75V to 5.25V, Iout=1mA)
Output Noise vs. Frequency (Vout=4.5V, Iout=10mA)
200u
180u
160u
140u
120u
100u
80u
60u
40u
20u
0
10 20
50 100 200 500 1k 2k
Frequency(HZ)
Vin=4.75V
Vin=5.25V
5k 10k 20k
80k
Vin vs. Quiescent current (Vout=4.5V)
90
80
70
60
50
40
30
20
10
0
4.5 4.75 5 5.25 5.5
(V)
Elite Semiconductor Memory Technology Inc./Elite Micro Power Inc.
Publication Date: Aug. 2011
Revision: 1.0
5/8
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet EMP8738.PDF ] |
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