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PDF EUP7915-15VIR1 Data sheet ( Hoja de datos )
| Número de pieza | EUP7915-15VIR1 | |
| Descripción | 150mA Low-Noise LDO | |
| Fabricantes | Eutech Microelectronics | |
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EUP7915
150mA Low-Noise LDO in SOT23-5
DESCRIPTION
The EUP7915 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 EUP7915 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 EUP7915 provides a
TTL-logic-compatible enable pin. When disabled,
power consumption drops nearly to zero.
The EUP7915 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 SOT23-5 package, the EUP7915
offers a wide range of output voltages. Key features
include current limit, thermal shutdown and faster
transient response.
FEATURES
z 5-pin SOT23-5 Package
z 2.5V to 5.5V Input Voltage Range
z 50µV(rms) Output Noise
z 140mV Dropout @ 150mA
z 75dB PSRR at 1kHz
z Low 70µA Ground Current
z 150mA 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,1.5V,1.8V,2.5V,2.8V,2.85V,
2.9V,3.0V,3.3V,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
DS7915 Ver1.4 Apr. 2008
Figure 1. Fixed-Voltage
1
1 page  
EUP7915Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Electrical Characteristics
Conditions: VIN VOUT+0.2V if VOUT2.5V, V IN 2.5V if VOUT 2.5V ,VEN=VIN, CIN=1uF, COUT=1uF,TA= -40~ 85
Unless otherwise specified. Typical values are at 25.
Symbol
Parameter
Conditions
Input Voltage
∆VOUT Output Voltage Accuracy
IOUTMAX Maximum Output Current
ILIMIT Current Limit
IOUT=1mA,TA=25
IOUT=1mA,TA=-40 to 85
TA>0, VIN=VOUT + 0.2V for
VOUT > 3.3V or VIN=VOUT +0.5V
VOUT=VOUT(nom) × 90%, TA>0
VDROP Dropout Voltage (Note1)
IOUT=150mA, VOUT<3.3V
IOUT=100mA, VOUT>3.3V
IQ
VLNR
Quiescent Current
Line Regulation
VLDR Load Regulation
ISHDN
PSRR
Shutdown Supply Current
Power Supply Ripple
Rejection
Output Noise Voltage
(Bypass)
IOUT=1mA
VIN=(VOUT+0.2V) to 5.5V,
IOUT=1mA
1mA ≤ IOUT ≤ 100mA
(VIN=VOUT + 0.2V)
1mA ≤ IOUT ≤ 150mA
(VIN=VOUT + 0.5V)
VEN=0,TA=25
VIN=(VOUT+1V)DC+0.5VP-P f=1kHz,
ILOAD=10mA
f=10Hz~100kHz, ILOAD=10mA
Output Noise Voltage (ADJ) f=10Hz~100kHz, ILOAD=10mA
Turn-on Time (Note2)
RLOAD=50Ω,TA=25
VENL
VENL (Maximum Low
Input Voltage at EN)
Level
VIN=2.5V
to
5.5V
VENH
VENH (Minimum high
Input Voltage at EN)
Level
VIN=2.5V
to
5.5V
VFB
TSD
∆TSD
VEN Input Bias Current
FB Input Bias Current (ADJ
Version)
FB Pin Voltage (ADJ
Version)
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
VIN=5.5V, VEN=0 or 5.5V
VIN=5.5V, VFB=1.3V
TA=25
EUP7915
Min Typ Max.
2.5 5.5
-2 2
-3 3
150
160 220 400
140 240
60 100
70 160
0.02 0.25
0.002 0.013
1
75
50
239
200
0.4
1.5
1
1
1.176 1.2 1.224
155
15
Unit
V
%
%
mA
mA
mV
µA
%/V
%/mA
µA
dB
µV
µV
µs
V
V
nA
nA
V
Note 1: The dropout voltage is defined as VIN-VOUT when VOUT is 100mV below the nominal value of VOUT.
Note 2: Test time needed for VOUT to reach 90% of final value.
DS7915 Ver1.4 Apr. 2008
5
5 Page 
Packaging Information
EUP7915Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
SOT23-5
SYMBOLS
A
A1
D
E1
E
L
b
e
MILLIMETERS
MIN.
MAX.
- 1.30
0.00 0.15
2.90
1.60
2.60 3.00
0.30 0.60
0.30 0.50
0.95
INCHES
MIN.
MAX.
- 0.052
0.000
0.006
0.114
0.063
0.102
0.118
0.012
0.024
0.012
0.020
0.037
DS7915 Ver1.4 Apr. 2008
11
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