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G911T85B 参数 Datasheet PDF下载

G911T85B图片预览
型号: G911T85B
PDF下载: 下载PDF文件 查看货源
内容描述: 3.3V 400毫安/ 250毫安低压差稳压器 [3.3V 400mA/250mA Low Dropout Regulator]
分类和应用: 稳压器电源电路
文件页数/大小: 9 页 / 229 K
品牌: GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
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Global Mixed-mode Technology Inc.  
G910/G911  
(Note 1)  
(Note 1)  
Absolute Maximum Ratings  
Operating Conditions  
Input Voltage………………………………………….10V  
Input Voltage…………………………..…..………4V ~ 7V  
Temperature Range………………….….0°C TJ 125°C  
Power Dissipation Internally Limited  
(Note2)  
Maximum Junction Temperature…………………150°C  
Storage Temperature Range..……-65°C TJ +150°C  
Lead Temperature, Time for Wave Soldering  
SOT89, SOT223, µTO92 Package……..…...260°C, 4s  
Continuous Power Dissipation (TA = + 25°C)  
SOT 89(1)………………………….…………………..0.5W  
SOT 223(1)……………………….……………………0.8W  
µTO 92 & TO 92 (1)…………….……………………..0.5W  
Note (1): See Recommended Minimum Footprint.  
Electrical Characteristics  
VIN =5V, IO = 400mA/250mA+, CIN=10µF, COUT =10µF. All specifications apply for TA = TJ = 25°C.[Note 3]  
PARAMETER  
Output Voltage  
Line Regulation  
Load Regulation  
CONDITIONS  
MIN  
TYP MAX UNITS  
5mA < IO <400mA  
5mA < IO <250mA+  
3.234  
3.3  
3.366  
V
4V < VIN < 7V, IO = 10mA  
10  
42  
28  
30  
60  
45  
mV  
mV  
10mA < IO < 400mA  
10mA < IO <250mA+  
Output Impedance  
Quiescent Current  
Ripple Rejection  
100mA DC and 100mA AC, fO = 120Hz  
VIN = 5V  
102  
m  
mA  
dB  
0.6  
fi = 120 Hz, 1VP-P, Io = 100mA  
IO = 400mA  
42  
0.65  
0.35  
V
Dropout Voltage  
IO =250mA+  
IO = 50mA  
50  
100  
mV  
VIN = 4.5V, mounted on SOT 89 rec-  
ommended minimum footprint  
Continuous Test  
400  
Output Current  
TA = 25°C, TJ < 125°C,  
mA  
V
IN = 5.2V, µTO 92 & TO 92 package  
250+  
VOUT within ±2% (Note 2)  
0.53 inch leads soldered to PC Board  
Short Circuit Current  
Over Temperature  
0.77  
125  
A
°C  
[+ for µTO-92 & TO-92 Package]  
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 speci-  
fications and test conditions see the Electrical Characteristics.  
Note 1:  
The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal resis-  
tance, θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is  
Note2:  
T
jmax-TA / θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into thermal  
shutdown. For the G910 in SOT 89 package & µTO 92,TO 92, θJA is 250°C/W and in the SOT-223 package is  
156°C/W (See Recommended Minimum Footprint). The safe operation in SOT 89,µTO 92,TO 92 & SOT 223  
package, it can see “Typical Performance Characteristics” (Safe Operating Area).  
Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.  
The type of output capacitor should be tantalum or aluminum.  
Note3:  
Note4:  
Load Regulation  
Definitions  
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.  
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.  
Maximum Power Dissipation  
The maximum total device dissipation for which the  
regulator will operate within specifications.  
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.  
Quiescent Bias Current  
Current which is used to operate the regulator chip  
and is not delivered to the load.  
TEL: 886-3-5788833  
http://www.gmt.com.tw  
Ver: 6.6  
Sep 25, 2002  
2