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| 型号： | G961-15ADJTEU |
| 厂商： | Global Mixed-mode Technology Inc. |
| 英文描述： | 1A Low Dropout Regulator with Enable |
| 中文描述： | 1A低压差稳压器与启用 |
| 文件页数： | 2/6页 |
| 文件大小： | 231K |
| 代理商： | G961-15ADJTEU |
Ver: 1.2
Apr 01, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G961
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
Reflow Temperature (soldering, 10sec)……..….260°C
Thermal Resistance Junction to Ambient, (θJA)
SOT-89-5………………………….…………..…128°C/W
Thermal Resistance Junction to Case, (θJc)
SOT-89-5……………………………….…………19°C/W
ESD Rating (Human Body Model)…………..………2kV
Operation Conditions
(Note 1)
Input Voltage………………………………….2.2V ~5.5V
Temperature Range………….………-40°C
≤TA ≤ +85°C
Electrical Characteristics
VEN=VIN, VIN =5V, IO = 0.5A, CIN = 4.7F, COUT =10F, TA = TJ = 25°C unless otherwise specified (Note 3)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
Supply Voltage
VIN
2.2
---
5.5
V
Output Voltage
VO
VIN=VO +0.7V, IO=10mA
-2
VO
2
%
Line Regulation
VO+0.7V < VIN < 5.5V, IO=10mA
---
0.2
2
%
Load Regulation
10mA < IO < 1A
---
0.8
2
%
VIN=3.3V,VEN=VIN
---
1.7
2.5
mA
Quiescent Current
IQ
VIN=3.3V,VEN=0V
---
16
35
A
Ripple Rejection
fi=120Hz, 1VP-P, IO=100mA
---
55
---
dB
Dropout Voltage
VD
IO=1A
---
0.4
0.6
V
Short Circuit Current
---
0.8
---
A
Over Temperature
---
150
---
°C
VEN Voltage High
VENH
Output Active
1.6
---
V
VEN Voltage Low
VENL
Output Disabled
---
0.4
V
VEN Bias Current Low
IENL
VEN=0.4V
---
20
A
ADJ Reference Voltage
VREF
VIN=2.2V, VADJ=VOUT, IO=10mA
1.188
1.2
1.212
V
ADJ Pin Threshold
---
0.2
---
V
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 resis-
tance,
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.
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 regula-
tor output no longer maintains regulation against further
reductions in input voltage. Measured when the output
drops 2% below its nominal value, dropout voltage is
affected by junction temperature, load current and mini-
mum input supply requirements.
Line Regulation
The change in output voltage for a change in input voltage.
The measurement is made under conditions of low dissi-
pation 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 cur-
rent at constant chip temperature. The measurement 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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