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參數(shù)資料
| 型號： | G903T61B |
| 廠商： | Global Mixed-mode Technology Inc. |
| 元件分類： | 線性穩(wěn)壓 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護(hù) |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 233K |
| 代理商： | G903T61B |
Ver: 1.4
Mar 03, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G903
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage………………………………..…….…….7V
Power Dissipation Internally Limited
(Note2)
Maximum Junction Temperature…………………150°C
Storage Temperature Range..……-65°C
≤ TJ ≤+150°C
Reflow Temperature (soldering, 10sec)............260°C
Thermal Resistance Junction to Ambient, (θJA)
SOT-223………………………….…………..…147°C/W
Thermal Resistance Junction to Case, (θJc)
SOT-223……………………………….…………27°C/W
Note (1): See Recommended Minimum Footprint.
Operating Conditions
(Note 1)
Input Voltage………….…….…..……..….……4V ~ 6.5V
Temperature Range…………………..-40°C
≤ TA ≤85°C
Electrical Characteristics
VIN =5V, IO = 600mA, CIN=10F, COUT =10F. All specifications apply for TA = TJ = 25°C.[Note 3]
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Output Voltage
10mA < IO <600mA
3.234
3.3
3.366
V
Line Regulation
4V < VIN < 6V, IO = 10mA
---
15
---
mV
10mA < IO < 600mA
---
20
---
Load Regulation
10mA < IO < 250mA
---
10
---
mV
Quiescent Current
VIN = 5V
---
0.3
---
mA
Ripple Rejection
fi = 120 Hz, 1VP-P, Io = 100mA
---
47
---
dB
IO = 600mA
---
0.65
---
Dropout Voltage
IO = 250mA
---
0.25
---
V
Output Current
---
600
---
mA
Short Circuit Current
---
0.65
---
A
Current Limit
0.8
A
Over Temperature
---
145
---
°C
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 guaran-
teed specifications and test conditions see the Electrical Characteristics.
Note2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal re-
sistance,
θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient tem-
perature is Tjmax-TA / θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will
go into thermal shutdown. The
θJA of SOT223 package is 147°C/W (See Recommended Minimum Footprint).
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
further reductions in input voltage. Measured when the
output drops 100mV below its nominal value, dropout
voltage is affected by junction temperature, load cur-
rent and minimum input supply requirements.
Line Regulation
The change in output voltage for a change in input volt-
age. The measurement is made under conditions of low
dissipation or by using pulse techniques such that av-
erage 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 tem-
perature 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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