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PDF GS7135 Data sheet ( Hoja de datos )
| Número de pieza | GS7135 | |
| Descripción | 1A Ultra Low Dropout Linear Regulator | |
| Fabricantes | GStek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de GS7135 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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1A Ultra Low Dropout Linear Regulator
GS7135
Features
Maximum 1A Low-Dropout Voltage Regulator
Ultra Low Dropout Voltage
Typically 100mV at 1A Output Current
High Output Accuracy over Line, Load and
Temperature
Build-In Soft-Start
Excellent startup under load from 0 to 1A
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
SOT-23-6,PSOP-8,TQFN9-1.5x1.5 and
TDFN6-2x1.8 package.
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 GS7135 can deliver up to 1A of continuous
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 Inter-
nal n-channel MOSFETs. The output voltage is
adjustable from 0.8V to the voltage that is very
close to VIN.
The GS7135 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 GS7135 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 GS7135 is available in SOT-23-6,PSOP-8,
TQFN9-1.5x1.5 and TDFN6-2x1.8 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.:1.0
1
Apr-14
1 page  
1A Ultra Low Dropout Linear Regulator
GS7135
Recommend Operating Condition (Note 4)
Parameter
Symbol
Supply Voltage
Control Voltage (Note 5)
Junction Temperature
Ambient Temperature
VIN
VDD
TJ
TA
Limits
1.0 < VIN< min{5.2V,VDD}
3.0 < VDD< 5.5
- 40 ~ 125
- 40 ~ 85
Units
V
V
°C
°C
Electrical Characteristics
(VIN= VOUT+0.5V, VEN=VDD=5V, CIN=COUT=10uF, TA=TJ=25°C)
Parameter
Symbol
Conditions
Min. Typ. Max. Units
Supply Voltage Section
VDD Operation Voltage
Range
VIN Operation Voltage
Range
VDD
VIN
Quiescent current
IQ
VDD Input current
IVDD
Control Input Current in
Shutdown
VDD POR Threshold
VDD POR Hysteresis
VIN POR Threshold
VIN POR Hysteresis
IVDD_SD
VDDRTH
VINRTH
Output Voltage
Reference Voltage
VREF
Output Voltage Accuracy
Line Regulation (VDD)
△ VLINE_VDD
Line Regulation (VIN)
△ VLINE_IN
Load Regulation (Note6)
VOUT Pull Low
Resistance
Dropout Voltage
Dropout Voltage
(Note 7)
△ VLOAD
VDROP
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
IOUT=1mA, VOUT=VREF
VDD=4V to 5V, IOUT=1mA,
VOUT=VREF, VIN=2V
VIN=1.2V to 5V, IOUT=1mA,
VOUT=VREF
IOUT=1mA to 1A, VOUT=VREF
VDD=VIN=5.0V, VEN=0V
VOUT=VREF, IOUT=1A
3.0
1.0
2.4
0.15
0.55
0.13
0.784
-2.0
5.5
min{5.2
V,VDD}
1.0 1.5
1.0 1.5
0.1 1
2.7 3
0.2
0.75 0.95
0.20
0.8 0.816
+2.0
0.03 0.2
0.01 0.1
0.1 1.5
130
100 200
V
V
mA
mA
uA
V
V
V
V
V
%
%
%
%
Ω
mV
Green Solution Technology Co.,LTD.
Rev.:1.0
5
Apr-14
5 Page 
1A Ultra Low Dropout Linear Regulator
VOUT
0.8V ~ 1.6V
R1
0 ~ 10 KΩ
COPTION
470pF~1nF
1.6V ~ 2.4V 10 KΩ ~ 20 KΩ 100pF~500pF
2.4V ~ 3.6V 20 KΩ ~ 30 KΩ 20pF~300pF
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 GS7135, 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:
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.
Green Solution Technology Co.,LTD.
Rev.:1.0
11
GS7135
Apr-14
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet GS7135.PDF ] | |
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