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参数资料
| 型号： | G9125 |
| 厂商： | Global Mixed-mode Technology Inc. |
| 元件分类： | 线性稳压 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 无电容，NMOS管，150mA的低压差稳压器的反向电流保护 |
| 文件页数： | 2/9页 |
| 文件大小： | 241K |
| 代理商： | G9125 |
Ver: 0.6 Preliminary
Nov 11, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G9125
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage……………………….…….……….……..8V
Vdis 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-220 No heatsink…..………….…………………1.5W
TO-220 with infinite heatsink………..…..…….……15W
Thermal Resistance Junction to Ambient, (
θ
JA)
TO-252-5…………………………………………95°C/W
Thermal Resistance Junction to Case, (
θ
JC)
TO-252-5…………………………………………..….8°C/W
Operating Conditions
(Note 1)
Input Voltage…………………………….………..3.6V~7V
Temperature Range………….….…….-40°C
≤ T
A ≤85°C
Electrical Characteristics
VIN =5V, 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
IO =0.5A
2.44
2.5
2.56
V
Line Regulation
4V < VIN < 7V, IO = 10mA
---
0.5
2
%
Load Regulation
50mA < IO < 1A
---
0.5
2
%
Quiescent Current
VIN = 5V
---
5
10
mA
Ripple Rejection
fi = 120Hz, 1VP-P, IO = 100mA
---
45
---
dB
Dropout Voltage
IO = 1A
---
0.4
0.6
V
Short Circuit Current
---
3.8
---
A
Over Temperature
---
150
---
°C
Disable Voltage High
VdisH
Output Active
2.0
---
V
Disable Voltage Low
VdisL
Output Disabled
---
0.8
V
Disable Bias Current High
IdisH
Vdis = 2.7V
---
20
A
Disable Bias Current Low
IdisL
Vdis = 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-220 package,
θ
JA 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 de-
vice 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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