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PDF EUP7917-48VIR1 Data sheet ( Hoja de datos )
| Número de pieza | EUP7917-48VIR1 | |
| Descripción | High PSRR Low-Noise LDO | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUP7917
300mA, High PSRR Low-Noise LDO
DESCRIPTION
The EUP7917 is an efficient, CMOS voltage regulator
optimized for ultra-low-noise applications. It offers
high output accuracy, extremely low dropout voltage
low ground current and fast start-up time.
The EUP7917 provides a very low noise output, ideal
for RF applications where a clean voltage source is
required. A noise bypass pin is also available for
further reduction of output noise.
Designed specifically for handheld and battery-
powered devices, the EUP7917 provides a
TTL-logic-compatible enable pin. When disabled,
power consumption drops nearly to zero.
The EUP7917 also works with low-ESR ceramic
capacitors, reducing the amount of board space
necessary for power applications, critical in handheld
wireless devices.
Available in the SC-70 and SOT23-5 package, the
EUP7917 offers a wide range of output voltages. Key
features include current limit, thermal shutdown and
faster transient response.
FEATURES
z Space-Saving 5-pin SC-70 Package
z 2.5V to 6V Input Voltage Range
z 50µV(rms) Output Noise
z 250mV Dropout @ 300mA
z 75dB PSRR at 1kHz
z Low 70µA Ground Current
z Up to 300mA Output Current
z Stability with 1µF Ceramic Output Capacitors
z Excellent Load/Line Transient
z Thermal Shutdown and Current Limit
Protection
z Available in 1.2V,1.3V,1.5V,1.8V,1.85V,
2.5V,2.8V,2.85V, 2.9V,3.0V,3.3V,3.5V,4.8V
and Adjustable Voltages
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Cellular Phones
z Bluetooth Portable Radios and Accessories
z PDA and Palmtop Computers
z Consumer/Personal Electronics
Block Diagram
DS7917 Ver1.2 Mar. 2008
Figure 1.
1
1 page  
EUP7917Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Electrical Characteristics (continued)
Conditions: VIN=VOUT+0.5V or 2.5V whichever is greater,VEN=VIN,CIN=1uF,COUT=1uF,TA=-40~85
,Unless otherwise specified.
VENL
VENL (Maximum Low
Input Voltage at EN)
Level
VIN=2.5V
to
5.5V
0.4 V
VENH
VENH (Minimum high
Input Voltage at EN)
Level
VIN=2.5V
to
5.5V
1.5
V
VEN Input Bias Current
VIN=5.5V, VEN=0 or 5.5V
1
FB Input Bias Current (ADJ
Version)
VIN=5.5V, VFB=1.3V
1
VFB
FB Pin Voltage (ADJ
Version)
TA=25
1.176 1.2 1.224
TSD
Thermal Shutdown
Temperature
155
∆TSD
Thermal Shutdown
Hysteresis
15
Note 1: Dropout is defined as VIN-VOUT when VOUT is 100mV below the value of VOUT for VIN=VOUT+0.5V
Note 2: Test time needed for VOUT to reach 90% of final value.
nA
nA
V
DS7917 Ver1.2 Mar. 2008
5
5 Page 
Packaging Information
EUP7917Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
SC-70
SYMBOLS
A
A1
b
D
E
E1
e
L
MILLIMETERS
MIN.
MAX.
0.80 1.10
0.025
0.10
0.15 0.40
2.00
1.25
1.90 2.30
0.65
0.21 0.46
INCHES
MIN.
MAX.
0.031
0.044
0.001
0.004
0.006
0.016
0.079
0.049
0.075
0.091
0.026
0.008
0.018
DS7917 Ver1.2 Mar. 2008
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet EUP7917-48VIR1.PDF ] | |
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