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GS7105 Datasheet PDF - GStek

Part Number GS7105
Description 2A Ultra Low Dropout Linear Regulator
Manufacturers GStek 
Logo GStek Logo 



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GS7105 datasheet, circuit
2A Ultra Low Dropout Linear Regulator
GS7105
Features
Maximum 2A Low-Dropout Voltage Regulator
Ultra Low Dropout Voltage
Typically 220mV at 2A Output Current
High Output Accuracy over Line, Load and
Temperature
Build-In Soft-Start
Excellent startup under load from 0 to 2A
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
PSOP-8, TDFN10-3x3
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 GS7105 can deliver up to 2A of continuous
output current with a typical dropout voltage of
only 220mV 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 GS7105 allows the use of low-ESR ceramic
capacitor as low as 10uF. Moreover the IC
provide good performance on both line transient
response and load transient response.
The GS7105 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 GS7105 is available in PSOP-8 package or
TDFN10- 3x3 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.:1.5
1
Nov-14

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GS7105 equivalent
2A Ultra Low Dropout Linear Regulator
GS7105
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
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
Output Voltage
Accuracy
Line Regulation (VDD)
Line Regulation (VIN)
Load Regulation
(Note 5)
VOUT Pull Low
Resistance
Dropout Voltage
Dropout Voltage
(Note 6)
VREF
IOUT=1mA, VOUT=VREF
VLINE_VDD
VLINE_IN
VLOAD
VDD=4V to 5V, IOUT=1mA,
VOUT=VREF, VIN=2V
VIN=1.2V to 5V, IOUT=1mA,
VOUT=VREF
IOUT=1mA to 3 A, VOUT=VREF
VDD=VIN=5.0V, VEN=0V
VDROP
VOUT=VREF, IOUT=1A
VOUT= VREF, IOUT=2A
Protection
Current Limit
Short Circuit Current
Thermal Shutdown
Temperature
ILIM
IFOLDBACK
TSD
VDD=VIN=VEN=5V, VOUT= VREF
VOUT<0.2V
TJ Rising
3.0 5.5
1.0
Min{5.2
,VDD}
1.0 1.5
1.0 1.5
0.1 2
2.4 2.7
3
0.15 0.2
0.55 0.75 0.95
0.13 0.20
0.784 0.8 0.816
-2.0 +2.0
0.03 0.2
0.01 0.1
0.1 1.5
130
110 210
220 320
3.5
100
160
V
V
mA
mA
uA
V
V
V
V
V
%
%
%
%
Ω
mV
mV
A
mA
°C
Green Solution Technology Co.,LTD.
Rev.:1.5
5
Nov-14

5 Page
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Information Total 15 Pages
Download[ GS7105.PDF Datasheet ]

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