G940T21 [GMT]
3.7V 400mA Low Dropout Regulator; 3.7V 400毫安低压差稳压器
| 型号： | G940T21 |
| 厂家： | 
GLOBAL MIXED-MODE TECHNOLOGY INC |
| 描述： | 3.7V 400mA Low Dropout Regulator |
| 文件： | 总8页 (文件大小：187K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Global Mixed-mode Technology Inc.
G940/G941
3.7V 400mA Low Dropout Regulator
Features
General Description
ꢀDropout voltage typically 0.8V @ IO = 400mA
ꢀOutput current in excess of 400mA
ꢀOutput voltage accuracy +3%/-2%
ꢀQuiescent current, typically 600µA
ꢀInternal short circuit current limit
ꢀInternal over temperature protection
The G940/G941 positive 3.7V voltage regulator fea-
tures the ability to source 400mA of output current
with a dropout voltage of typically 0.8V over the en-
tire operating temperature range. A low quiescent
current is provided over the entire output current
range. The typical quiescent current is 0.6mA. Fur-
thermore, the quiescent current is smaller when the
regulator is in the dropout mode (VIN < 3.7V).
Familiar regulator features such as over temperature
and over current protection circuits are provided to
prevent it from being damaged by abnormal operating
conditions.
Ordering Information
PIN OPTION
ORDER NUMBER
PACKAGE TYPE
1
2
3
G940T21U
G941T24U
G940T73U
SOT 89
SOT 89
SOT 23
VOUT
GND
GND
GND
VIN
VOUT
VIN
VOUT
VIN
*For other package types, pin options and package, please contact us at sales @gmt.com.tw
Order Number Identification
GXXX
XX
X
X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE
T2 : SOT 89
T6 : SOT 223
T7 : SOT 23
T8 : µTO92
PIN OPTION
PACKING
1
2
3
U & D : Tape & Reel D Direction
1 : VOUT
2 : VOUT
3 : GND
4 : GND
5 : VIN
GND
VIN
VOUT
VIN
GND
VOUT
VIN
T : Tube
B : Bag
GND
VIN
VOUT
VOUT
GND
6 : VIN
Typical Application
Package Type
[Note 4] : Type of COUT
3
IO
VOUT
VIN
TopView
G940
TopView
Top View
C1
COUT
IQ
0.47µF
10µF
1
3
1
2
SOT 829 223
SOT 223
1
3
µTO 92
、
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
G940/G941
Absolute Maximum Ratings
(Note 1)
Operating Conditions
(Note 1)
Input Voltage……………………………..……..…..…10V
Input Voltage………………………….…………….4V~7V
Temperature Range………………….…0°C ≤ TJ ≤125°C
Power Dissipation Internally Limited
..(Note 2)
Maximum Junction Temperature………….….…...150°C
Storage Temperature Range…..…..…..-65°C ≤ TJ ≤+150°C
Lead Temperature, Time for Wave Soldering
SOT 89, SOT23 Package….….…..……..…....260°C, 4s
Continuous Power Dissipation (TA = + 25°C)
SOT 23(1)…….…………………….….……….……...0.3W
SOT 89(1)……………………….………..………..…0.42W
Note (1): See Recommended Minimum Footprint.
Electrical Characteristics
VIN =5V, IO = 400mA, CIN = 1 µF, COUT =10 µF, All specifications apply for TA = TJ = 25°C. [Note 3]
PARAMETER
CONDITIONS
MIN
TYP
-
0.08
-
100
0.6
42
0.8
130
0.76
125
MAX
UNITS
%
%/V
%
mΩ
mA
dB
V
mV
A
°C
Output Voltage Accuracy IO = 10mA
-2
-
+3
0.9
2.2
-
Line Regulation
Load Regulation
Output Impedance
Quiescent Current
Ripple Rejection
Dropout Voltage
VIN = 4V to 7V, IO = 50mA
IO = 10mA to 400mA
100mA DC and 100mA AC, fo = 120Hz
VIN=5V
-
-
-
-
-
-
-
-
-
-
fi = 120 Hz, 1VP-P, Io = 100mA
IO = 400mA
IO = 100mA
0.9
150
-
Short Circuit Current
Over Temperature
-
Note 1:
Note2:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Condi-
tions are conditions under which the device functions but the specifications might not be guaranteed. For
guaranteed specifications and test conditions see the Electrical Characteristics.
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 130°C and IC
will go into thermal shutdown. For the G940/G941 in SOT 23 package, θJA is 350°C/W and in the SOT 89
package is 250°C/W (See Recommend Minimum Footprint). The safe operation in SOT 23 & SOT 89
package, it can see “Typical Performance Characteristics” (Safe Operating Area).
Note3:
Note4:
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.
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
regulator 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
voltage. The measurement is made under conditions
of low dissipation or by using pulse techniques such
that average chip temperature is not significantly af-
fected.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
G940/G941
Typical Performance Characteristics
(VIN=5V, CIN=1µF, COUT=10µF, TA=25°C, unless otherwise noted.)
Line Transient
Load Transient
Ch1: Vout (offset=3.70V)
Ch2: Vin (offset=5.0V)
Iout=100mA
Ch1: Iout (400mA/div)
Ch2: Vout (offset=3.70V)
Dropout Voltage vs. Load Current
2.000%
1.500%
1.000%
0.500%
0.000%
-0.500%
-1.000%
900
800
700
600
500
400
300
200
100
0
0
50 100 150 200 250 300 350 400 450 500 550 600
Load Current (mA)
0
50
100
150
200
250
300
350
400
450
Load Current (mA)
Ground Current vs. Load Current
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
50
150
200
250
300
350
400
100 Load Current (mA)
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
G940/G941
Maximum Power Dissipation of SOT 23
Safe Operating Area
[Power Dissipation Limit]
0.5
500
450
400
350
300
250
200
150
100
50
Maximum Recommended Output Current
TA=25°C,Still Air
0.4
0.3
0.2
0.1
0.0
TA=25℃
TA=55℃
TA=85℃
Still Air
1oz Copper on SOT 23 Package
1oz Copper on SOT 23 Package
Mounted on recommended mimimum footprint (RθJA=350°C/W)
Mounted on recommend mimimum footprint (RθJA=350°C/W)
0
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
25
35
45
55
65
75
85
95
105
115
125
Input-Output Voltage Differential VIN-VOUT (V)
Note: VIN(max) <= 6.5V
Amibent Temperature TA (°C)
Safe Operating Area
[Power Dissipation Limit]
Maximum Power Dissipation of SOT 89
500
450
400
350
300
250
200
150
100
50
0.6
Maximum Recommended Output Current
TA=25°C,Still Air
0.5
0.4
0.3
0.2
0.1
0
TA=25℃
TA=55℃
TA=85℃
Still Air
1oz Copper on SOT 89 Package
1oz Copper on SOT 89 Package
Mounted on recommended mimimum footprint (RθJA=250°C/W)
Mounted on recommend mimimum footprint (RθJA=250°C/W)
0
25
35
45
55
65
75
85
95
105
115
125
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
Input-Output Voltage Differential VIN-VOUT (V)
Amibent Temperature TA (°C)
Note: VIN(max) <= 6.5V
Recommend Minimum Footprint
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
4
Global Mixed-mode Technology Inc.
G940/G941
Package Information
D
D1
POLISH
E
HE
A1
e
C
MATTE FINISH
A
b
b1
POLISH
b
SOT-89 (T2) Package
DIMENSIONS IN MILLIMETERS
DIMENSIONS IN INCHES
NOM
SYMBOLS
MIN
NOM
1.50
1.04
0.42
0.47
0.40
4.50
1.60
-----
MAX
MIN
0.055
0.031
0.014
0.016
0.014
0.173
0.055
-----
MAX
0.063
-----
A
A1
b
b1
C
1.40
0.80
0.36
0.41
038
4.40
1.40
-----
1.60
-----
0.059
0.041
0.016
0.018
0.015
0.177
0.062
-----
0.48
0.53
0.43
4.60
1.75
4.25
2.60
3.10
0.048
0.020
0.017
0.181
0.069
0.167
0.102
0.122
D
D1
HE
E
2.40
2.90
2.50
3.00
0.094
0.114
0.098
0.118
e
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
5
Global Mixed-mode Technology Inc.
G940/G941
A
D
α
B1
C
13 (4X)
°
H
E
L
L2
e
e1
13 (4X)
°
A1
B
SOT-223 (T6) Package
MILLIMETERS
INCHES
SYMBOLS
MIN
MAX
1.80
0.12
0.80
3.10
0.32
6.70
3.70
MIN
0.061
0.0008
0.024
0.114
0.009
0.248
0.130
MAX
0.071
0.0047
0.031
0.122
0.013
0.264
0.146
A
A1
B
B1
C
1.55
0.02
0.60
2.90
0.24
6.30
3.30
D
E
e
e1
H
L
L2
α
2.30 BSC
4.60 BSC
0.090 BSC
0.181 BSC
6.70
0º
7.30
10º
0.264
0º
0.287
10º
0.90 MIN
0.06 BSC
0.036 MIN
0.0024 BSC
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
6
Global Mixed-mode Technology Inc.
G940/G941
C
D
L
E
H
e
θ1
A
A2
A1
b
SOT-23 (T7) Package
Note:
1.Package body sizes exclude mold flash protrusions or gate burrs
2.Tolerance ±0.1000 mm (4mil) unless otherwise specified
3.Coplanarity: 0.1000mm
4.Dimension L is measured in gage plane
DIMENSIONS IN MILLIMETERS
SYMBOLS
MIN
1.00
0.00
0.70
0.35
0.10
2.70
1.40
-----
2.60
0.37
1º
NOM
1.10
MAX
1.30
0.10
0.90
0.50
0.25
3.10
1.80
-----
3.00
-----
9º
A
A1
A2
b
C
D
-----
0.80
0.40
0.15
2.90
1.60
E
e
H
L
1.90(TYP)
2.80
------
5º
θ1
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
7
Global Mixed-mode Technology Inc.
G940/G941
L
A
e
b
E
G
H
D
A1
θ1(2 X)
C
θ2 (2 X)
µTO-92 (T8) Package
DIMENSIONS IN INCHES
DIMENSIONS IN MILLIMETERS
SYMBOLS
MIN
2.40
0.70
0.35
-----
2.80
3.80
-----
1.91
3.35
0.00
13.80
-----
NOM
2.50
0.80
0.45
0.40
3.00
4.00
1.27
2.11
3.55
-----
MAX
2.60
0.90
0.55
-----
3.20
4.20
-----
2.31
3.75
0.15
14.20
-----
MIN
NOM
0.098
0.032
0.018
0.016
0.118
0.157
0.050
0.083
0.140
-----
MAX
0.102
0.036
0.022
-----
0.126
0.165
-----
0.091
0.148
0.006
0.559
-----
A
A1
b
C
D
E
e
F
G
H
L
θ1
θ2
0.094
0.028
0.014
-----
0.110
0.149
-----
0.075
0.132
0.000
0.543
-----
14.00
2°
0.551
2°
5°
-----
5°
-----
-----
-----
Package Orientation
Feed Direction
SOT 89、223 Package Orientation
Feed Direction
SOT 23 Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
Ver: 5.5
May 13, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
8
相关型号：
©2020 ICPDF网 联系我们和版权申明