G9131-33T24UF [GMT]
Regulator;
| 型号： | G9131-33T24UF |
| 厂家： | 
GLOBAL MIXED-MODE TECHNOLOGY INC |
| 描述： | Regulator |
| 文件： | 总10页 (文件大小：264K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Global Mixed-mode Technology Inc.
G9131
300mA Low-Dropout Linear Regulators
Features
General Description
90µA Quiescent Current
The G9131 is a low supply current, low dropout linear
regulator that comes in a space saving SOT-23 pack-
age. The supply current at no-load is 90µA. An over
temperature protection circuit is built-in in the G9131
to prevent thermal overload. These power saving fea-
tures make the G9131 ideal for use in the bat-
tery-powered applications such as notebook com-
puters, cellular phones, and PDA’s.
Guaranteed 300mA Output Current
Dropout Voltage is 0.4V @ IO = 300mA
Over-Temperature Protection and Short-Circuit
Protection
Stable With Low Cost Ceramic Capacitors
Fixed Output Voltage :1.5V, 1.8V, 2.5V, 3.3V,
3.9V
Applications
Cordless Phones
PDAs
Hand-Held Devices
Bar Code Scanners
Electronic Scales
Ordering Information
ORDER
ORDER NUMBER
TEMP.
RANGE
MARKING
VOLTAGE
PACKAGE
NUMBER
(Pb free)
G9131-15T73U
G9131-18T73U
G9131-25T73U
G9131-33T73U
G9131-39T73U
G9131-33T24U
G9131-15T73Uf
G9131-18T73Uf
G9131-25T73Uf
G9131-33T73Uf
G9131-39T73Uf
G9131-33T24Uf
35xx
38xx
32xx
31xx
39xx
31xx
1.5V
1.8V
2.5V
3.3V
3.9V
3.3V
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
SOT-23
SOT-23
SOT-23
SOT-23
SOT-23
SOT-89
* For other package types, pin options and package, please contact us at sales@gmt.com.tw
Order Number Identification
GXXXX XX XX
X
X
Packing Type
Pin Option
Package Type
Voltage
Part Number
PACKAGE TYPE
T2 : SOT-89
T7 : SOT-23
PIN OPTION
PACKING
U: Tape & Reel Direction
1
2
GND
VIN
VOUT
VIN
GND
VOUT
3
VIN
1 : VOUT
2 : VOUT
3 : GND
4 : GND
5 : VIN
GND
VIN
VOUT
VOUT
GND
6 : VIN
Package Type
Typical Application Circuit
3
OUTPUT
VOLTAGE
Top View
IN
OUT
VIN
G9131
Top View
＋
GND
＋
CIN
1µF
COUT
1µF
1
3
2
1
2
SOT23
SOT89
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
1
Global Mixed-mode Technology Inc.
G9131
Absolute Maximum Ratings
(Note 1)
Operating Conditions (Note 1)
Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . .3V ~ 6V
Temperature Range. . . . . . . . . . . . . .-40°C ≤ TA ≤85°C
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-23(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 276°C/W
SOT-89(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . .173°C/W
Thermal Resistance Junction to Case, (θJC)
SOT-89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24°C/W
Note (1): See Recommended Minimum Footprint.
Electrical Characteristics
VIN =5V, IO = 300mA, CIN=1µF, COUT =1µF. All specifications apply for TA = TJ = 25°C. [Note 3]
PARAMETER
CONDITION
VO=3.9V
MIN TYP MAX UNIT
3.822
3.234
2.45
1.764
1.455
---
3.9
3.3
2.5
1.8
1.5
15
3.978
3.366
2.55
1.845
1.545
---
---
150
---
VO=3.3V
VO=2.5V
VO=1.8V
VO=1.5V
Output Voltage
5mA < IO < 300mA
V
4V < VIN < 6V, IO = 10mA
10mA < IO < 300mA
VIN = 5V
Line Regulation
Load Regulation
Quiescent Current
Ripple Rejection
mV
mV
µA
---
---
10
90
fi = 120 Hz, 1VP-P, Io = 100mA
---
45
dB
VO=3.3V
VO=2.5V
VO=1.8V
VO=1.5V
---
---
---
---
---
---
---
---
0.4
0.5
0.8
0.9
0.65
0.8
145
25
---
---
---
---
---
---
---
---
Dropout Voltage
IO = 300mA
V
Short Circuit Current
Current Limit
Over Temperature
Over Temperature Hysterics
A
A
°C
°C
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are condi-
tions 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 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 G9131 in
SOT-23 package, θJA is 276°C/W and in the SOT-89 package is 173°C/W (See Recommended Minimum Footprint). The
safe operation in SOT-89 & SOT-23 package, it can see “Typical Performance Characteristics” (Safe Operating Area).
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, aluminum or ceramic.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
2
Global Mixed-mode Technology Inc.
G9131
Definitions
Dropout Voltage
Load Regulation
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.
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.
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: 1.7
Dec 13, 2006
3
Global Mixed-mode Technology Inc.
G9131
Typical Performance Characteristics
(VIN = VO + 1V, CIN =1µF, COUT =1µF, TA = 25°C, unless otherwise noted.)
Line Transient
Load Transient
Quiescent Current vs. Temperature
Output Voltage vs. Temperature
106
104
102
100
98
3.4
3.38
3.36
3.34
3.32
3.3
IL=30mA
VIN=6V
VIN=6V
96
3.28
3.26
3.24
3.22
3.2
VIN=5V
94
92
VIN=5V
90
88
-45 -25 -5
15
35
55
75
95 115
-25
-5
15
35
55
75
Temperature ( C)
°
Temperature ( C)
°
Ripple Rejection vs. Frequency
VIN vs. VOUT
60
3.37
3.35
3.33
3.31
3.29
3.27
3.25
3.23
100mA
300mA
600mA
T=25 C, I =30mA
°
L
50
40
30
20
10
0
10
100
1000
10000
100000
1000000
4
4.5
5
5.5
6
6.5
7
Frequency (Hz)
V
IN (V)
TEL: 886-3-5788833
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Ver: 1.7
Dec 13, 2006
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continue)
Output Noise
G9131
Start-Up
Dropout Volatge vs. Temperature
Output Current vs. Output Voltage
600
550
IL=300mA
vo=3.3V
500
450
400
350
300
250
200
-15
5
25
45
65
85
105
125
Temperature
SOT-89 Max. Power Dissipation
vs. TAMB (still air)
SOT-89 Max. Power Dissipation
vs. PCB Top Copper Area
TAMB = 25 C ; Still Air
( Different PCB Top Copper Area )
°
Unit:in2
2.5
2
2.5
2
A=0.5
A=1.0
A=1.5
A=2.0
A=2.5
A=3.0
1.5
1
1.5
1
A=3.5
A=4.0
A=4.5
A=5.0
0.5
0
0.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
25
40
55
TAMB ( C)
70
85
PCB Top Copper Area (in2)
°
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
5
Global Mixed-mode Technology Inc.
Recommended Minimum Footprint
G9131
SOT-23
SOT-89
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
6
Global Mixed-mode Technology Inc.
Pin Description
G9131
NAME
IN
FUNCTION
Regulator Input. Supply voltage can range from VIN(min) to +5.5V. Bypass with 1µF to GND.
This is ground pin.
GND
OUT
Regulator Output. Sources up to 300mA. Bypass with a 1µF, ＜0.2Ω typical ESR capacitor to GND.
When it detects the temperature is above 150°C, the
output transistor is turned off. When the IC is cooled
down to below 135°C, the output is turned on again. In
this way, the G9131 will be protected against abnor-
mal junction temperature during operation.
Detailed Description
The block diagram of the G9131 is shown in Figure 1.
It consists of an error amplifier, 1.25V bandgap refer-
ence, PMOS output transistor, internal feedback volt-
age divider, over current protection circuit, and over
temperature protection circuit.
Operating Region and Power Dissipation
Since the G9131 is a linear regulator, its power dissi-
pation is always given by P = IOUT (VIN - VOUT). The
maximum power dissipation is given by: PD(MAX) = (TJ -
TA)/θJA, Where (TJ - TA) is the temperature difference
Over Current Protection
The G9131 use a current sense-resistor to monitor the
output current. A portion of the PMOS output transistor’s
current is mirrored to a resistor such that the voltage
across this resistor is proportional to the output current.
Once the output current exceeds limit threshold, G9131
would be protected with a limited output current. Further
more, when the output is short to ground, the output
current would be folded-back to a less limit.
the G9131 die and the ambient air. For surface mount
device, heat sinking is accomplished by using the heat
spreading capabilities of the PC board and its copper
traces. θJA is the thermal resistance of the chosen
package to the ambient air. In the case of a SOT-23
package, the thermal resistance is typically 275.5°C/W.
In SOT 89 RθJA is 172.5°C/W.
Over Temperature Protection
To prevent abnormal temperature from occurring, the
G9131 has a built-in temperature monitoring circuit.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
7
Global Mixed-mode Technology Inc.
G9131
Applications Information
Load Transient Considerations
Capacitor Selection and Regulator Stability
Normally, use a 1µF capacitor on the input and a 1µF
capacitor on the output of the G9131. Larger input ca-
pacitor values and lower ESR provide better sup-
ply-noise rejection and transient response. For stable
operation over the full temperature range, with load
currents up to 120mA, a minimum of 1µF is recom-
mended.
The G9131 load-transient response graphs show two
components of the output response: a DC shift of the
output voltage due to the different load currents, and
the transient response. Typical overshoot for step
changes in the load current from 0mA to 300mA is
10mV. Increasing the output capacitor's value and
decreasing its ESR attenuates transient spikes.
Input-Output (Dropout) Voltage
Power-Supply Rejection and Operation from
Sources Other than Batteries
A regulator's minimum input-output voltage differential
(or dropout voltage) determines the lowest usable
supply voltage. In battery-powered systems, this will
determine the useful end-of-life battery voltage. Be-
cause the G9131 use a P-channel MOSFET pass
transistor, their dropout voltage is a function of RDS(ON)
multiplied by the load current.
The G9131 is designed to deliver low dropout voltages
and low quiescent currents in battery powered sys-
tems. Power-supply rejection is 47dB at low frequen-
cies the output capacitor is the major contributor to the
rejection of power-supply noise.
When operating from sources other than batteries,
improve supply-noise rejection and transient response
by increasing the values of the input and output ca-
pacitors, and using passive filtering techniques.
IN
－
OVER CURRENT
PROTECT & DYNAMIC
FEEDBACK
P
ERROR
AMP
＋
OUT
R1
OVER TEMP.
PROTECT
1.25V
Vref
R2
GND
Figure 1. Functional Diagram
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
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Global Mixed-mode Technology Inc.
Package Information
G9131
D
D1
POLISH
E
HE
A1
e
C
MATTE FINISH
A
b
b1
POLISH
b
SOT-89 (T2) Package
DIMENSION IN MILLIMETER
DIMENSION IN INCH
SYMBOL
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
-----
NOM
0.059
0.041
0.016
0.018
0.015
0.177
0.062
-----
MAX
0.063
-----
A
A1
b
1.40
0.80
0.36
0.41
038
1.60
-----
0.48
0.53
0.43
4.60
1.75
4.25
2.60
3.10
0.018
0.020
0.017
0.181
0.069
0.167
0.102
0.122
b1
C
D
4.40
1.40
-----
D1
HE
E
2.40
2.90
2.50
3.00
0.094
0.114
0.098
0.118
e
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
9
Global Mixed-mode Technology Inc.
G9131
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
DIMENSION IN MILLIMETER
SYMBOL
MIN
NOM
1.10
MAX
1.30
0.10
0.90
0.50
0.25
3.10
1.80
-----
A
A1
A2
b
1.00
0.00
0.70
0.35
0.10
2.70
1.40
-----
-----
0.80
0.40
C
0.15
D
2.90
E
1.60
e
1.90(TYP)
2.80
H
2.60
0.37
1°
3.00
-----
L
------
θ1
5°
9°
Taping Specification
PACKAGE
SOT-23
Q’TY/BY REEL
3,000 ea
SOT-89
1,000 ea
Feed Direction
Feed Direction
SOT-89 Package Orientation
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.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.7
Dec 13, 2006
10
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