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PDF EUP7982 Data sheet ( Hoja de datos )
| Número de pieza | EUP7982 | |
| Descripción | 300mA Low-Noise LDO | |
| Fabricantes | Eutech Microelectronics | |
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EUP7982
300mA Low-Noise Ultra Low-Dropout
CMOS Regulator with Fault Indicator
DESCRIPTION
The EUP7982 low-noise, low-dropout, linear
regulator operates from a 2.5V to 5.5V input and is
guaranteed to deliver 300mA.
The EUP7982 is stable with small 2.2µF ceramic
capacitor. Its performance suits battery powered
applications because of its shutdown mode (60 nA
www.Dtaytpa)S,hleoewt4Uq.cuoimescent current (110µA typ), and LDO
voltage (140mV typ). The low dropout voltage
allows for more utilization of a battery’s available
energy by operating closer to its end-of-life voltage.
An output fault-detection circuit indicates loss of
regulation.
The EUP7982 is available in MSOP package with
1.8V, 2.5v, 2.8V, 3V, 3.3V, and adjustable versions.
FEATURE
z 2.5V to 5.5V Input Range
z 300mA Guaranteed Output Current
z 60dB PSRR at 1kHz
z 50µV RMS Output Voltage Noise (10Hz to
100kHz)
z 140mV Dropout at 300mA
z Low 110µA No-Load Supply Current
z ≤ 1µA Shutdown Current
z Fast Start-up Time
z Stable With 2.2µF Ceramic Output Capacitors
z Thermal Shutdown and Short-Circuit Protection
z Fault Indicator
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Wireless Handsets
z DSP Core Power
z Battery Powered Electronics
z Portable Information Appliances
Block Diagram
DS7982 Ver 1.4 May.2005
Figure1.
1
1 page  
EUP7982
Absolute Maximum Ratings
VIN, VOUT, VSHDN , VSET , VCC, VFAULT
--------------------------------------------- -0.3V to 6V
Fault Sink Current --------------------------------------------------------------------------------- 20mA
Storage Temperature Range ------------------------------------------------------------- -65°C to 160°C
Junction Temperature (TJ) ------------------------------------------------------------------------ 150°C
Lead Temperature (10 sec.) ------------------------------------------------------------------------- 260°C
Electrical Characteristics
Unless otherwise specified, all limits guaranteed for VIN= VO +0.5V, VSHDN=VIN, CIN=COUT=2.2µF, CCC=22nF,
TJ =25°C. (Boldface limits apply for the operating temperature extremes: -40°C and 85°C)
Symbol
Parameter
www.DataSheet4U.com
VIN Input Voltage
∆ VO Output Voltage Tolerance
VO
IO
ILIMIT
IQ
Output Adjust Range
Maximum Output Current
Output Current Limit
Supply Current
Shutdown Supply Current
VDO Dropout Voltage
∆ VO
en
Line Regulation
Load Regulation
Output Voltage Noise
VSHDN SHDN Input Threshold
ISHDN SHDN Input Bias Current
ISET SET Input Leakage
VFAULT FAULT Detection Voltage
FAULT Output Low Voltage
Conditions
EUP7982
Min Typ Max.
100µA ≤ IOUT ≤ 300mA
VIN=VO+0.5V,
SET= OUT for the Adjust Versions
Adjust Version Only
Average DC Current Rating
2.5
-2
-3
1.25
300
IOUT=0mA
IOUT=300mA
VO =0V, SHDN =GND
IOUT =1mA
IOUT =200mA
IOUT =300mA
IOUT = 1mA, (VO +0.5V) ≤ VI
≤ 5.5V
100µA ≤ IOUT ≤ 300mA
IOUT =10mA, 10Hz ≤ f
≤ 100kHz
VIH,(VO+0.5V) ≤ VI ≤ 5.5V
VIL,(VO+0.5V) ≤ VI ≤ 5.5V
SHDN =GND or IN
SET = 1.3V, Adjust Version Only
-0.1
2
600
110
240
0.06
0.4
90
140
0.05
0.002
50
0.1
0.1
5.5
+2
+3
5.5
200
1
200
0.1
0.4
100
2.5
VO ≥ 2.5V, IOUT =200mA
ISINK=2mA
150 280
0.13 0.25
Unit
V
% of
VOUT(NOM)
V
mA
mA
µA
µA
mV
%/V
%/mA
µVRMS
V
nA
nA
mV
V
IFAULT FAULT Off-Leakage Current
TSD Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TON Start-Up Time
FAULT =3.6V, SHDN =0V
COUT =10µF, VO at 90% of Final
Value
0.1 100
160
20
80
nA
°C
µs
DS7982 Ver 1.4 May.2005
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet EUP7982.PDF ] | |
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