|
|
PDF GS7168 Data sheet ( Hoja de datos )
| Número de pieza | GS7168 | |
| Descripción | 0.8A Ultra Low Dropout Linear Regulator | |
| Fabricantes | GStek | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de GS7168 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
0.8A Ultra Low Dropout Linear Regulator
GS7168
Features
0.8A Low-Dropout Voltage Regulator
Ultra Low Dropout Voltage
Typically 100mV at 0.8A Output Current
High Output Accuracy over Line, Load and
Temperature
Build-In Soft-Start
Excellent startup under load from 0 to 0.8A
Power-On-Reset Monitoring on Both VDD and
VIN Pins
Power-OK Output function
Foldback over Current Protection and
Thermal shutdown
0.1μA (typ) Shutdown Supply Current
Low ESR Output Capacitor(Multi-layer Chip
Capacitors (MLCC)) Applicable
Vout Pull Low Resistance when Disable
TDFN8-2x2
Green Product (RoHS, Lead-Free,
Halogen-Free Compliant)
Applications
Notebook PC Applications
Motherboard Applications
Low Voltage Logic Supplies
Microprocessor and Chipset Supplies
Graphic Cards
Cordless phones
General Description
The GS7168 can deliver up to 0.8A of output
current with a typical dropout voltage of only
100mV using internal n-channel MOSFETs. The
linear regulator uses a separate VDD supply to
power the control circuitry and drive the Internal
n-channel MOSFETs. The output voltage is
adjustable from 0.8V to the voltage that is very
close to VIN.
The GS7168 allows the use of low-ESR ceramic
capacitor as low as 10uF. Moreover the IC
provides good performance on both line transient
response and load transient response.
The GS7168 provides foldback over current limit
and thermal shutdown to prevent the linear
regulator from damage. Built-in soft-start
minimizes stress on the input power source by
reducing capacitive inrush current on start-up.
During start-up, POK remain low until the output
reaches 92% of its rating value.
The GS7168 is available in TDFN8-2X2 package.
This document is GStek's confidential information. Anyone having confidential obligation to GStek shall keep this document confidential. Any unauthorized
disclosure or use beyond authorized purpose will be considered as violation of confidentiality and criminal and civil liability will be asserted.
Green Solution Technology Co.,LTD.
Rev.:1.32
1
May-15
1 page  
0.8A Ultra Low Dropout Linear Regulator
GS7168
Electrical Characteristics
(VIN= VOUT+0.5V, VEN=VDD=5V, CIN=COUT=10uF, TA=TJ=25°C)
Parameter
Symbol
Conditions
Supply Voltage Section
VDD Operation Voltage
Range
VIN Operation Voltage
Range
SQuiescent current
VDD
VIN
IQ
VDD Input current
Control Input Current in
Shutdown
VDD POR Threshold
VDD POR Hysteresis
VIN POR Threshold
VIN POR Hysteresis
IVDD
IVDD_SD
VDDRTH
VINRTH
VDD Input Range, VOUT=VREF
VIN Input Range, VOUT=VREF
VDD=VIN=VEN=5V,IOUT=0A,
VOUT=VREF
VDD=VIN=VEN=5V, IOUT=0A,
VOUT=VREF
VDD=VIN=5.0V, IOUT=0A,
VEN=0V
Output Voltage
Reference Voltage
VREF
IOUT=1mA, VOUT=VREF
Output Voltage Accuracy
Line Regulation (VDD)
Line Regulation (VIN)
Load Regulation
VOUT Pull Low
Resistance
Dropout Voltage
Dropout Voltage
(Note 7)
△ VLINE_VDD
△ VLINE_IN
△ VLOAD
(Note 6)
VDD=4V to 5V, IOUT=1mA,
VOUT=VREF, VIN=2V
VIN=1.2V to 5V, IOUT=1mA,
VOUT=VREF
IOUT=1mA to 0.8 A, VOUT=VREF
VDD=VIN=5.0V, VEN=0V
VDROP
VOUT=VREF, IOUT=0.8A
Protection
Current Limit
Short Circuit Current
Thermal Shutdown
Temperature
Thermal Shutdown
Returned Temperature
ILIM
IFOLDBACK
TSD
VDD=VIN=VEN=5V, VOUT= VREF
VOUT<0.2V
TJ Rising
Min. Typ. Max. Units
3.0 5.5 V
1.0
Min{5.2
V,VDD}
V
1.0 mA
1.0 mA
1.0 uA
2.7 V
0.2 V
0.75 V
0.20 V
0.784 0.8 0.816
-2.0 +2.0
0.03
0.01
0.1
130
V
%
%
%
%
Ω
100 mV
1.6 A
100 mA
170 °C
120 °C
Green Solution Technology Co.,LTD.
Rev.:1.32
5
May-15
5 Page 
0.8A Ultra Low Dropout Linear Regulator
GS7168
VOUT
R1(R2=10KΩ)
COPTION
0.8V ~ 1.6V
0 ~ 10 KΩ
470pF~1nF
1.6V ~ 2.4V 10 KΩ ~ 20 KΩ 100pF~500pF
2.4V ~ 3.6V 20 KΩ ~ 30 KΩ 20pF~300pF
Table 2. R1=10KΩ
PD(MAX) = ( TJ(MAX) − TA ) / θJA
Where TJ(MAX) is the maximum operation junction
temperature 125°C, TA is the ambient
temperature and the θJA is the junction to ambient
thermal resistance.
Vout
FB
R1
R2
Vout
Coption
Cout
Figure 4 Feedback Network
Input Capacitor selection
Bypass VIN to ground with a 10uF or greater
capacitor. Bypass VDD to ground with a 1uF
capacitor for normal operation in most appli-
cations. Ceramic, tantalum or aluminum elec-
trolytic capacitors may be selected for input
capacitor. However ceramic capacitors are
recommended due to their significant cost and
space savings. Place the capacitors physically as
close as possible to the device with wide and
direct PCB traces.
Power Dissipation and Layout Considerations
Although internal thermal limiting function is
integrated in GS7168, continuously keeping the
junction near the thermal shutdown temperature
may possibly affect device reliability. For
continuous operation, it is highly recommended to
keep the junction temperature below the
maximum operation junction temperature 125°C
for maximum reliability.
The power dissipation definition in device is:
PD = (VIN − VOUT) x IOUT + VDD x IQ
The maximum power dissipation can
be
calculated as:
Green Solution Technology Co.,LTD.
Rev.:1.32
11
May-15
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet GS7168.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| GS7166 | 3A Ultra Low Dropout Linear Regulator | GStek |
| GS7168 | 0.8A Ultra Low Dropout Linear Regulator | GStek |
| GS7169 | 3A Ultra Low Dropout Linear Regulator | GStek |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |