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G9218 Datasheet(PDF) 2 Page - Global Mixed-mode Technology Inc

Part No. G9218
Description  1.8V 2A Low Dropout Regulator with Enable
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Manufacturer  GMT [Global Mixed-mode Technology Inc]
Direct Link  http://www.gmt.com.tw
Logo GMT - Global Mixed-mode Technology Inc

G9218 Datasheet(HTML) 2 Page - Global Mixed-mode Technology Inc

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Ver: 0.1 Preliminary
Apr 20, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G9218
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage……………………….…….………..……..7V
VEN Voltage………………………..………………VIN+0.3V
Power Dissipation Internally Limited
(Note 2)
Maximum Junction Temperature.…..…….…………..150°C
Storage Temperature Range……....-65°C
≤ TJ ≤+150°C
Lead Temperature, Time for Wave Soldering
TO220 Package………………...……….…….260°C, 10s
Continuous Power Dissipation (TA = +25°C)
TO220 No heatsink…………….….………….….…..1.5W
TO220 with infinite heatsink………….………..….…15W
Operating Conditions
(Note 1)
Input Voltage……………………………………..2.2V~7V
Temperature Range………….………..-40°C
≤ TA ≤85°C
Electrical Characteristics
VIN =5V, IO = 0.5A, CIN = 4.7µF, COUT =47µF, TA = TJ = 25°C unless otherwise specified [Note 3]
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
Output Voltage
IO =0.5A
1.755
1.8
1.845
V
Line Regulation
2.2V < VIN < 7V, IO = 10mA
---
0.5
2
%
Load Regulation
50mA < IO < 2A
---
0.5
2
%
Quiescent Current
VIN = 3.3V
---
1.8
2.5
mA
Ripple Rejection
fi = 120Hz, 1VP-P, IO = 100mA
---
45
---
dB
Dropout Voltage
IO = 2A
---
0.7
0.9
V
Short Circuit Current
---
1
---
A
Over Temperature
---
150
---
°C
Enable Voltage High
VENH
Output Active
2
---
---
V
Enable Voltage Low
VENL
Output Disabled
---
---
0.8
V
Enable Bias Current Low
IENL
VEN = 0.4V
---
---
20
µA
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating
Conditions are conditions under which the device functions but the specifications might not be guaranteed. For
guaranteed specifications and test conditions see the Electrical Characteristics.
Note2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal
resistance,
θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient
temperature is (Tjmax-TA) /
θJA. If this dissipation is exceeded, the die temperature will rise above 150°C
and IC will go into thermal shutdown. For the TO220F package,
θJA is 60°C/W (No heat sink).
Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Note4: The type of output capacitor should be tantalum or aluminum.
Definitions
Dropout Voltage
The input/output Voltage differential at which the regu-
lator output no longer maintains regulation against fur-
ther reductions in input voltage. Measured when the
output drops 2% below its nominal value, dropout volt-
age is affected by junction temperature, load current
and minimum input supply requirements.
Line Regulation
The change in output voltage for a change in input
voltage. The measurement is made under conditions of
low dissipation or by using pulse techniques such that
average chip temperature is not significantly affected.
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measure-
ment is made under conditions of low dissipation or
by using pulse techniques such that average chip
temperature is not significantly affected.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.


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