G9225TH2T [GMT]
2.5V 2A Low Dropout Regulator with Disable; 2.5V 2A低压降稳压器具有禁用
| 型号： | G9225TH2T |
| 厂家： | 
GLOBAL MIXED-MODE TECHNOLOGY INC |
| 描述： | 2.5V 2A Low Dropout Regulator with Disable |
| 文件： | 总7页 (文件大小：227K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Global Mixed-mode Technology Inc.
G9225
2.5V 2A Low Dropout Regulator with Disable
Features
General Description
Dropout voltage 0.5V @ IO = 2A
Output current in excess of 2A
Output voltage accuracy ±2.5%
Quiescent current, typically 2.5mA
Internal short circuit current limit
Internal over temperature protection
TO220 4pin Full-Mold package
ON/OFF control
The G9225 positive 2.5V voltage regulator features
the ability to source 2A of output current. The dropout
voltage is 0.5V at 2A output current. The typical qui-
escent current is 2.5mA. Furthermore, the quiescent
current is smaller when the regulator is in the dropout
mode.
Familiar regulator features such as over tem-
perature and over current protection circuits are
provided to prevent it from being damaged by
abnormal operating conditions. A VEN pin is pro-
vided to disable the output when needed.
Ordering Information
PIN OPTION
MARKING
PACKAGE
ORDER NUMBER
TEMP. RANGE
1
2
3
4
G9225TF1T
G9225TH1T
G9225
G9225
-20°C to +85°C
-20°C to +85°C
TO220F-4L
TO220F-4L
VIN
VIN
VO
VO
GND
GND
VEN
VEN
Order Number Identification
GXXXX XX
X
X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE
PIN OPTION
PACKING
T : Tube
TF: TO220F-4L (short lead)
TH: TO220F-4L (long lead)
1
2
3
4
1.: VIN
VO
GND
VEN
Typical Application
Package Type
IENH
R=5kΩ
VEN
TO220F-4L
Top View
IO
VIN
VOUT
G9225
C1
4.7µF
COUT
47µF
IQ
1
VIN
2
3
4
VEN
VO GND
R=5kΩ is recommended
R must be connected for current IENH
restriction as VEN > VIN+0.3V
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2 Preliminary
Jun 28, 2004
1
Global Mixed-mode Technology Inc.
G9225
Absolute Maximum Ratings
(Note 1) Operating Conditions
(Note 1)
Input Voltage……………………….…….………..……..7V Input Voltage…………………………….………..2.5V~7V
VEN Voltage…………………………….……….…VIN+0.3V
Power Dissipation Internally Limited (Note 2)
Temperature Range………….….........-20°C ≤ TA ≤85°C
Maximum Junction Temperature.………….….……..150°C
Storage Temperature Range……....-65°C ≤ TJ ≤+150°C
Lead Temperature, Time for Wave Soldering
TO220 Package……….…….….……….….….260°C, 10s
Continuous Power Dissipation (TA = +25°C)
TO220 No heatsink…….……….…………….…..…..1.5W
TO220 with infinite heatsink…………………….….…15W
Electrical Characteristics
VIN =5V, IO = 0.5A, CIN = 4.7µF, COUT =47µF, TA = TJ = 25°C unless otherwise specified [Note 3]
PARAMETER
Output Voltage
SYMBOL
CONDITION
MIN
2.44
---
TYP MAX
UNIT
V
IO =0.5A
2.5
0.5
0.5
2.5
45
2.56
2
Line Regulation
3.3V < VIN < 7V, IO = 10mA
50mA < IO < 2A
%
Load Regulation
---
2
%
Quiescent Current
Ripple Rejection
VIN = 5V
---
5
mA
dB
V
fi = 120Hz, 1VP-P, IO = 100mA
IO = 2A
---
---
0.7
---
---
---
0.8
20
20
Dropout Voltage
---
0.5
1.2
150
---
Short Circuit Current
Over Temperature
Disable Voltage High
Disable Voltage Low
Disable Bias Current High
Disable Bias Current Low
---
A
---
°C
V
VENH
VENL
IENH
IENL
Output Active
Output Disabled
VEN = 2.7V
2
---
---
V
---
---
µA
µA
VEN 0.4V
---
---
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Con-
ditions 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
resistance, 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. For the TO220 package, θJA is 60°C/W (No heat sink).
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.
Note 1:
Note2:
Note3:
Note4:
Definitions
Dropout Voltage
Load Regulation
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.
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
Line Regulation
The maximum total device dissipation for which the
regulator will operate within specifications.
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.
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: 0.2 Preliminary
Jun 28, 2004
2
Global Mixed-mode Technology Inc.
G9225
Block Diagram
VIN
1
2
VO
THERMAL
SHUTDOWN
SHORT-CIRCUIT
PROTECTION
1.25V
BANDGAP
_
REFERENCE
+
R1
R2
OUTPUT
ON/OFF
HIGH / LOW
Ven
4
TTL COMPATIBLE BUFFER
3
GND
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2 Preliminary
Jun 28, 2004
3
Global Mixed-mode Technology Inc.
G9225
Typical Performance Characteristics
(VIN=5V, CIN=10µF, COUT = 10µF, TA=25°C, unless otherwise noted.)
Line Transient Response
Load Transient Response
Short Circuit Current
Ripple Rejection
70
IL=1A
60
50
40
30
20
10
IL=2A
VIN=5V
OUT=10µF
ripple=224mV
C
V
0
10
100
1000
10000
100000
1000000
Frequency (Hz)
Overcurrent Protection Characteristics
Start-up
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2 Preliminary
Jun 28, 2004
4
Global Mixed-mode Technology Inc.
G9225
Typical Performance Characteristics (continued)
Quiescent Current vs. Temperature
Dropout Voltage vs. IL
4.00
3.75
3.50
3.25
3.00
2.75
2.50
700
600
500
400
300
200
100
0
T=85°C
VIN=5V
VIN=4V
T=-25°C
T=25°C
-25 -15 -5
5
15 25 35 45 55 65 75 85
Temperature (°C)
0
0.5
1
1.5
2
IL (mA)
Output Voltage vs. Temperature
Output Voltage vs. IL
2.54
2.53
2.52
2.51
2.5
2.545
2.535
2.525
2.515
2.505
2.495
2.485
2.475
T=25 °C
VIN=7.0V
VIN=5.0V
VIN=5V
VIN=4V
2.49
2.48
2.47
IL=10mA
VIN=3.5V
1.5
-25 -15 -5
5
15 25 35 45 55 65 75 85
Temperature (°C)
0
0.5
1
2
Output Cirrent (A)
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2 Preliminary
Jun 28, 2004
5
Global Mixed-mode Technology Inc.
G9225
Package Information
E1
L
b
D
e
L2
L1
E
θ
C
A
A1
A2
He
TO220F-4L Package (short lead)
DIMENSION IN MM
DIMENSION IN INCH
SYMBOL
MIN.
4.42
2.69
1.68
10.00
6.85
8.54
8.32
16.56
3.60
23.72
-----
NOM.
4.57
MAX.
4.72
2.89
1.88
10.20
7.05
8.74
8.72
16.76
3.80
24.72
-----
MIN.
0.174
0.106
0.066
0.394
0.269
0.336
0.328
0.652
0.142
0.934
-----
NOM.
0.180
MAX.
0.186
0.114
0.074
0.402
0.278
0.344
0.343
0.660
0.150
0.93
A
A1
A2
D
2.79
0.110
1.78
0.070
10.10
6.95
0.398
E
0.273
E1
L
8.64
0.340
8.52
0.335
L1
L2
He
C
16.66
3.70
0.656
0.146
24.22
0.48
0.953
0.019
-----
e
-----
2.54(TYP)
0.635(TYP)
7°
-----
-----
0.1(TYP)
0.025(TYP)
7°
-----
b
θ
-----
-----
-----
-----
4°
11°
4°
11°
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2 Preliminary
Jun 28, 2004
6
Global Mixed-mode Technology Inc.
G9225
E1
L
b
D
e
L2
L1
E
θ
C
A
A2
A1
He
TO 220F-4L Package (long lead)
DIMENSION IN MM
DIMENSION IN INCH
SYMBOL
MIN.
4.42
2.69
1.68
10.00
6.85
8.54
13.15
16.56
3.60
28.44
-----
NOM.
4.57
MAX.
4.72
2.89
1.88
10.20
7.05
8.74
13.55
16.76
3.80
29.44
-----
MIN.
0.174
0.106
0.066
0.394
0.269
0.336
0.518
0.652
0.142
1.119
-----
NOM.
0.180
MAX.
0.186
0.114
0.074
0.402
0.278
0.344
0.533
0.660
0.150
1.159
-----
A
A1
A2
D
2.79
0.110
1.78
0.070
10.10
6.95
0.398
E
0.273
E1
L
8.64
0.340
13.35
16.66
3.70
0.526
L1
L2
He
C
0.656
0.146
28.94
0.48
1.139
0.019
e
-----
2.54(TYP)
0.635(TYP)
7°
-----
-----
0.1(TYP)
0.025(TYP)
7°
-----
b
θ
-----
-----
-----
-----
4°
11°
4°
11°
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.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.2 Preliminary
Jun 28, 2004
7
相关型号：
©2020 ICPDF网 联系我们和版权申明