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Global Mixed-mode Technology Inc.
G9125
2.5V 1A Low Dropout Regulator with Disable
Features
Dropout voltage 0.6V @ IO = 1A Output current in excess of 1A Output voltage accuracy 2.5% Quiescent current, typically 5mA Internal short circuit current limit Internal over temperature protection TO-220 4pin Full-Mold, TO-252-5 package ON/OFF control
General Description
The G9125 positive 2.5V voltage regulator features the ability to source 1A of output current. The dropout voltage is 0.6V at 1A output current. The typical quiescent current is 5mA. Furthermore, the quiescent current is smaller when the regulator is in the dropout mode.
Familiar regulator features such as over temperature and over current protection circuits are provided to prevent it from being damaged by abnormal operating conditions. A Vdis pin is provided to disable the output when needed.
Ordering Information
ORDER NUMBER
G9125TF1T G9125TH1T G9125TJU
ORDER NUMBER
(Pb free)
G9125TF1Tf G9125TH1Tf G9125TJUf
MARKING
G9125 G9125 G9125
TEMP. RANGE
-40C to +85C -40C to +85C -40C to +85C
PACKAGE
TO-220F-4 TO-220F-4 TO-252-5
1
VIN VIN
PIN OPTION 2 3
VO VO GND GND
4
Vdis Vdis
Order Number Identification
GXXXX XX X X Packing Type Pin Option (only TO-220F-4) Package Type Part Number PACKAGE TYPE
TF: TO220F-4 (short lead) TH: TO220F-4 (long lead) TJ: TO-252-5 1 1.: VIN
PIN OPTION (only TO-220F-4)
2 VO 3 GND 4 Vdis
PACKING
T : Tube U: Tape & Reel
Package Type
Typical Application
TO-220F-4
TO-252-5
ON/OFF IO VIN C1 4.7F
Top View
G9125
IQ
VOUT COUT 47F
1
2
3
4
1
2
3
4
5
VIN Vdis VO NC GND
Ver: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
(Note 1) Input Voltage.....................................................8V Vdis Voltage......................................................8V Power Dissipation Internally Limited (Note 2) Maximum Junction Temperature.........................150C Storage Temperature Range.........-65C TJ +150C Reflow Temperature (Soldering, 10 sec)...........260C Continuous Power Dissipation (TA = +25C) TO-220 No heatsink.......................................1.5W TO-220 with infinite heatsink.............................15W Thermal Resistance Junction to Ambient, (JA) TO-252-5................................................95C/W Thermal Resistance Junction to Case, (JC) TO-252-5......................................................8C/W
G9125
Absolute Maximum Ratings
Operating Conditions
(Note 1) Input Voltage.............................................3.6V~7V Temperature Range........................-40C TA 85C
Electrical Characteristics
VIN =5V, IO = 0.5A, CIN = 4.7F, COUT =47F, TA = TJ = 25C unless otherwise specified [Note 3] PARAMETER
Output Voltage Line Regulation Load Regulation Quiescent Current Ripple Rejection Dropout Voltage Short Circuit Current Over Temperature Disable Voltage High Disable Voltage Low Disable Bias Current High Disable Bias Current Low VdisH VdisL IdisH IdisL Output Active Output Disabled Vdis = 2.7V Vdis = 0.4V
SYMBOL
CONDITION
IO =0.5A 4V < VIN < 7V, IO = 10mA 50mA < IO < 1A VIN = 5V fi = 120Hz, 1VP-P, IO = 100mA IO = 1A
MIN
2.44 --------------2.0 -------
TYP
2.5 0.5 0.5 5 45 0.4 3.8 150 ---------
MAX
2.56 2 2 10 --0.6 ------0.8 20 20
UNIT
V % % mA dB V A C V V A A
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 resistance, JA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA / JA. If this dissipation is exceeded, the die temperature will rise above 150C and IC will go into thermal shutdown. For the TO-220 package, JA is 60C/W (No heat sink). 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 regulator 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 minimum input supply requirements. 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 affected. Load Regulation The change in output voltage for a change in load current 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.
Ver: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
Block Diagram
G9125
VIN 1 THERMAL SHUTDOWN SHORT-CIRCUIT PROTECTION
2 VO
BANDGAP REFERENCE
1.25V
_ + R1
HIGH / LOW Vdis 4
OUTPUT ON/OFF
TTL COMPATIBLE BUFFER
R2
3 GND
Ver: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN=5V, CIN=10F, COUT = 10F, TA=25C, unless otherwise noted.)
G9125
Load Transient Response
Line Transient Response
Short Circuit-Current
Output Noise
Ripple Rejection
60 50 Ripple Rejection (dB) 40 30 20 10 0
10 100 1000 10000 100000 1000000
Disable- ON
IL= 100mA
IL= 1A
Frequency (Hz)
Ver: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
4
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Dropout Voltage vs. Temperature
600 500 Dropout Voltage (mV) 400 IL= 1A 300 200 100 0 -45 -20 5 30 55 Temperature 80 105 Output Voltage Deviation (mV) 0 -0.01 -0.02 -0.03 -0.04 -0.05 -0.06 -0.07 -0.08 -0.09 -45 -20 5 30 55 80 VIN=3V VIN=5V
G9125
Load Regulation
105
Temperature
Output Voltage vs. Temperature
2.535 2.53 2.525 2.52 VOUT (V) 2.515 2.51 2.505 2.5 2.495 2.49 -45 -20 5 30 55 Temperature 80 105 VIN=3V VIN=5V IL=0.5A Quiescent Current (mA) 4 3.5 3 2.5 2 1.5 1 0.5 0 -45
Quiescent Current vs. Temperature
VIN=5V
VIN=3V
-20
5
30 55 Temperature
80
105
Output Voltage vs. Disable Voltage
5 5
Output Voltage vs. Input Voltage
Output Voltage V OUT(V)
Output Voltage V OUT(V)
4
4
3
3
2
2
IL=0A IL=1A
1
1
0 0 0.5 1 1.5 2 2.5 3 Disable Voltage Vdis(V)
0 0 1 2 3 4 5 Input Voltage VIN (V) 6 7
Ver: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
5
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Quiescent Current vs. Input Voltage
4.0 3.5 Quiescent Current IQ(mA) Power dissipation Pd (W) 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 5 Input Voltage VIN(V) 6 7 3.5 3 2.5 2 1.5 1 0.5 0 -25 -5 15 35 55 Temperature (TA) without heatsink
G9125
Power Dissipation vs. Temperature (TA)
heatsink (5in2)
75
Heatsink Package Dimension
TO-220F-4
Recommended Minimum Footprint
TO-252-5
Ver: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
6
Global Mixed-mode Technology Inc.
Package Information
E1 L b D e L2 L1 E
G9125
A
A1 He
TO-220F-4 Package (short lead)
DIMENSION IN MM NOM.
4.57 2.79 1.78 10.10 6.95 8.64 8.52 16.66 3.70 24.22 0.48 2.54(TYP) 0.635(TYP) 7
SYMBOL
A A1 A2 D E E1 L L1 L2 He C e b
MIN.
4.42 2.69 1.68 10.00 6.85 8.54 8.32 16.56 3.60 23.72 ------------4
MAX.
4.72 2.89 1.88 10.20 7.05 8.74 8.72 16.76 3.80 24.72 ------------11
Ver: 0.6 Preliminary Nov 11, 2005
7
C
A2
MIN.
0.174 0.106 0.066 0.394 0.269 0.336 0.328 0.652 0.142 0.934 ------------4
DIMENSION IN INCH NOM.
0.180 0.110 0.070 0.398 0.273 0.340 0.335 0.656 0.146 0.953 0.019 0.1(TYP) 0.025(TYP) 7
MAX.
0.186 0.114 0.074 0.402 0.278 0.344 0.343 0.660 0.150 0.93 ------------11
TEL: 886-3-5788833 http://www.gmt.com.tw
Global Mixed-mode Technology Inc.
G9125
E1 L b D e L2 L1 E
A
A1 He
TO-220F-4 Package (long lead)
DIMENSION IN MM NOM.
4.57 2.79 1.78 10.10 6.95 8.64 13.35 16.66 3.70 28.94 0.48 2.54(TYP) 0.635(TYP) 7
SYMBOL
A A1 A2 D E E1 L L1 L2 He C e b
MIN.
4.42 2.69 1.68 10.00 6.85 8.54 13.15 16.56 3.60 28.44 ------------4
MAX.
4.72 2.89 1.88 10.20 7.05 8.74 13.55 16.76 3.80 29.44 ------------11
Ver: 0.6 Preliminary Nov 11, 2005
8
C
A2
MIN.
0.174 0.106 0.066 0.394 0.269 0.336 0.518 0.652 0.142 1.119 ------------4
DIMENSION IN INCH NOM.
0.180 0.110 0.070 0.398 0.273 0.340 0.526 0.656 0.146 1.139 0.019 0.1(TYP) 0.025(TYP) 7
MAX.
0.186 0.114 0.074 0.402 0.278 0.344 0.533 0.660 0.150 1.159 ------------11
TEL: 886-3-5788833 http://www.gmt.com.tw
Global Mixed-mode Technology Inc.
E A E1 L2 F
G9125
D
H
A1 L1 e b C L
A2
TO-252-5 (TJ) Package SYMBOL
A A1 b C D E E1 e F L L1 L2 H
MILLIMETER MIN.
2.19 0.89 0.64 0.46 5.36 6.35 5.21 1.27BSC 0.46 1.40 2.20 1.52 9.40 0 0.58 1.78 2.80 2.03 10.40 4 0.018 0.055 0.087 0.060 0.370 0
INCH MAX.
2.38 1.27 0.89 0.58 5.61 6.73 5.46
MIN.
0.086 0.035 0.025 0.018 0.211 0.250 0.205 0.050BSC
MAX.
0.094 0.050 0.035 0.023 0.221 0.265 0.215 0.023 0.070 0.110 0.080 0.410 4
Taping Specification
PACKAGE
TO-220F-4 TO-252-5
Feed Direction TO -252-5 Package O rientation
Q'TY/TUBE
50 ea ---
Q'TY/REEL
--2,500 ea
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: 0.6 Preliminary Nov 11, 2005
TEL: 886-3-5788833 http://www.gmt.com.tw
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