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PDF EUP7961 Data sheet ( Hoja de datos )
| Número de pieza | EUP7961 | |
| Descripción | 1A Ultra Low-Dropout Linear Regulator | |
| Fabricantes | Eutech Microelectronics | |
| Logotipo |  |
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EUP7961
1A Ultra Low-Dropout Linear Regulator
DESCRIPTION
The EUP7961 is a 1A low-dropout linear regulator that
provides a low voltage, high current output with a
minimum of external components. It offers high
precision, ultra-low dropout, and low ground current.
The EUP7961 operates from an input of 2.5V to 5.5V.
This regulator uses small, 1µF ceramic input capacitors
and 4.7µF ceramic output capacitors to deliver 1A
output current. High bandwidth provides excellent
transient response. It is designed to drive digital
circuits requiring low voltage at high currents (i.e.,
www.DPaLtaDShs,eeDt4SUP.cso, mmicrocontrollers, etc.).
Other features include thermal and current limit
protection, a logic-control shutdown mode and an error
flag output that goes low when the output voltage
drops 10% below nominal value.
It is available in fixed output voltages of 1.5V, 1.8V,
2.5V, 3.3V and as an adjustable device with a 0.8V
reference voltage. The adjustable output voltage can be
set from 0.8V to 4.5V.
FEATURES
z 1A Guaranteed Output Current
z 300mV Dropout Voltage at 1A Output
z Stable with Ceramic Capacitors
z ±1.8% Output Voltage Accuracy
z 300µA Low-Ground Pin Current
0.1µA Quiescent Current in Shutdown Mode
z Excellent Line and Load Regulation
z Thermal Shutdown and Current Limit Protection
z Error Flag Indication
z Available in SOT223, SOP-8 and SOT-89 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z LDO Linear Regulator for Low-Voltage Digital IC
z PC Add-In Cards
z High Efficiency Linear Power Supplies
z Post Regulator
Typical Application Circuit
DS7961 Ver 1.2 Dec. 2006
Figure1.
1
1 page  
EUP7961
Electrical Characteristics
Limits in standard typeface are for TJ =25°C. Unless otherwise specified: VIN= VOUT(nom) +1V, IL=10mA,COUT=4.7µF
Symbol
Parameter
Conditions
EUP7961
Min Typ Max.
Unit
VIH
VIL
Enable Threshold
Output = High
Output = Low
1.4 VIN
0 0.3
V
TdOFF
TdON
Turn-off delay
Turn-on delay
IL = 1A
IL = 1A
20
20
µs
IEN VEN Pin Input Current
VEN=VIN
0.1 1
µA
ERROR Flag
VT Threshold
VTH Threshold Hysteresis
VEF(Sat) ERROR Flag Saturation
www.DataTSdheet4UF.cloamg Reset Delay
ISINK=100µA
10
5
0.02 0.1
1
%
%
V
µs
IIK
ERROR Flag Pin Leakage
Current
Imax
ERROR Flag Pin Sink
Current
VError=0.5V
1 nA
3.8 mA
AC Parameters
PSRR Ripple Rejection
en Output Noise Voltage
Over Temperature Protection
VIN=VOUT+1V
COUT=10uF
VOUT=3.3V, f=120Hz
BW=10Hz -100kHz
VOUT=2.5V
60 dB
150 µV(rms)
TSH(t)
TSH(h)
Shutdown Threshold
Thermal Shutdown
Hysteresis
150 °C
10 °C
DS7961 Ver 1.2 Dec. 2006
5
5 Page 
SOP-8
EUP7961
www.DataSheet4U.com
SYMBOLS
A
A1
D
E1
E
L
b
e
MILLIMETERS
MIN.
MAX.
1.35 1.75
0.05 0.25
4.90
3.90
5.80 6.20
0.40 1.27
0.33 0.51
1.27
INCHES
MIN.
0.053
0.002
0.193
0.153
0.228
0.016
0.013
0.500
MAX.
0.069
0.010
0.244
0.050
0.020
DS7961 Ver 1.2 Dec. 2006
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet EUP7961.PDF ] | |
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