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参数资料
| 型号： | G9105TH1TF |
| 厂商： | Global Mixed-mode Technology Inc. |
| 英文描述： | 5V 1A Low Dropout Regulator with Enable |
| 中文描述： | 5V的1A低压差稳压器与启用 |
| 文件页数： | 2/9页 |
| 文件大小： | 412K |
| 代理商： | G9105TH1TF |
Ver: 0.9 Preliminary
Jul 07, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G9105
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8V
VEN Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V
Power Dissipation Internally Limited
(Note 2)
Maximum Junction Temperature . . . . . . . . . . . . . . 150°C
Storage Temperature Range. . . . .-65°C
≤ T
J ≤+150°C
Reflow Temperature (soldering, 10 sec) . . . . . . 260°C
Continuous Power Dissipation (TA = +25°C)
TO-220F-4 No Heatsink . . . . . . . . . . . . . . . . .80°C/W
TO-220F-4 with Infinite Heatsink . . . . . . . . . . 36°C/W
Thermal Resistance Junction to Ambient, (
θ
JA)
SOP-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .180°C/W
Operating Conditions
(Note 1)
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V~7V
Temperature Range. . . . . . . . . . . . . . -20°C
≤ T
A ≤85°C
VEN Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . .VIN+0.3V
Electrical Characteristics
VIN =7V, IO = 0.5A, CIN = 4.7F, COUT =47F, TA = TJ = 25°C unless otherwise specified [Note 3]
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
Output Voltage
VO
IO = 0.5A
4.875
5
5.125
V
Line Regulation
5.5V < VIN < 7V, IO = 10mA
---
0.5
2
%
Load Regulation
50mA < IO < 1A
---
0.5
2
%
VIN = 5.5V, VEN = VIN
---
5
10
mA
Quiescent Current
IQ
VIN = 5.5V, VEN = 0V
---
10
30
A
Ripple Rejection
fi = 120Hz, 1VP-P, IO = 100mA
---
35
---
dB
Dropout Voltage
VD
IO = 1A
---
0.5
V
Short Circuit Current
---
1.9
---
A
Over Temperature
---
150
---
°C
VEN Voltage High
VENH
Output Active
2
---
V
VEN Voltage Low
VENL
Output Disabled
---
0.8
V
VEN Bias Current High
IENH
VEN = 2.7V
---
20
A
VEN Bias Current Low
IENL
VEN = 0.4V
---
20
A
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,
θ
JA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA /
θ
JA. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into thermal shutdown. For
the TO-220F-4 package,
θ
JA is 80°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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