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GS7168 Schematic ( PDF Datasheet ) - GStek

Teilenummer GS7168
Beschreibung 0.8A Ultra Low Dropout Linear Regulator
Hersteller GStek
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Gesamt 13 Seiten
GS7168 Datasheet, Funktion
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






GS7168 Datasheet, Funktion
0.8A Ultra Low Dropout Linear Regulator
GS7168
Enable
EN
Threshold
Logic-Low
Voltage
Logic-High
Voltage
EN Input Bias Current
Power Good
IEN
VDD=5V
VDD=5V
VEN=5V
0.4
1.2
12
V
V
uA
PGOOD Rising Threshold
VREF Rising
92 %
PGOOD Hysteresis
VREF falling
8%
PGOOD Sink Capability
IPGOOD=5mA
0.2 V
PGOOD Delay
-40°C ~125°C
1.7 mS
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the
device. These are for stress ratings. Functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may remain possibility to
affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. θJA is measured in the natural convection at TA=25°C on a high effective thermal conductivity test
board (4 Layers, 2S2P) of JEDEC 51-7 thermal measurement standard. The case point of θJC is
on the expose pad for TDFN8-2x2 package.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. VDD should be 1.5V higher than the output voltage, VDD> 1.5V+Vout
Note 6.Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices
are tested for load regulation in the load range from 1mA to 0.8A.
Note 7. The Dropout voltage is defined as VIN-VOUT, which is measured when VOUT is 0.98*VOUT(NORMAL).
The dropout voltage is measured at constant junction temperature by using a 2ms current pulse.
Green Solution Technology Co.,LTD.
Rev.:1.32
6
May-15

6 Page









GS7168 pdf, datenblatt
0.8A Ultra Low Dropout Linear Regulator
Package Dimensions, TDFN8-2x2
GS7168
D
pin 1 dot
Top view
eb
L 5678
D1
E1
k
4 3 2 1 See Detail A
Bottom view
A3
A
A1 2 1
21
Side view
Detail A
Pin #1 ID Options
Note:The configuration of the Pin#1 identifier
is optional,but must be located within the
zone indicated.
Symbol
A
A1
A3
b
e
D
E
D1
E1
L
Dimensions in
Millimeters
Min. Max.
0.50 0.80
0.00 0.05
0.20 REF.
0.20 0.30
0.50 REF.
1.90 2.10
1.90 2.10
1.60 REF.
0.90 REF.
0.20
0.40
Note:
1. Min.: Minimum dimension specified.
2. Max.: Maximum dimension specified.
3. REF.: Reference. Normal/Regular dimension specified for reference.
Green Solution Technology Co.,LTD.
Rev.:1.32
12
May-15

12 Page





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