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Global Mixed-mode Technology Inc.
G950
2.5V 1A Regulator
Features
Output current in excess of 1A Output voltage accuracy +3%/-1% Quiescent current, typically 600A Internal short circuit current limit Internal over temperature protection
General Description
The G950 positive 2.5V voltage regulator features the ability to source 1A of output current. The typical quiescent current is 0.6mA.
Applications
PC motherboard ADSL/Cable Modem Set-Top-Box LAN switch/Hub Router
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
ORDER NUMBER
G950T45U G950T55U G950T63U G950T64U G950T65U G950T66U
PACKAGE TYPE
TO 252 TO 263 SOT 223 SOT 223 SOT 223 SOT 223
1
VIN VIN GND GND VIN VIN
PIN OPTION 2
GND GND VOUT VIN GND VOUT
3
VOUT VOUT VIN VOUT VOUT GND
* For other package types and pin options, 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
T3 : TO 220 T4 : TO 252 T5 : TO 263 T6 : SOT 223
PIN OPTION
1 1 : VOUT 2 : VOUT 3 : GND 4 : GND 5 : VIN 6 : VIN 2 GND VIN VOUT VIN GND VOUT 3 VIN GND VIN VOUT VOUT GND
PACKING
U & D : Tape & Reel Direction T : Tube
Typical Application
[Note 4] : Type of COUT
IO VIN C1 1F
Package Type
G950
IQ
VOUT COUT 10F
Top View
Top View
Top View
1
2
3
1
2
3
1
2
3
TO 220
Ver: 1.6 Dec 31, 2002
TO252263
SOT 223
TEL: 886-3-5788833 http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
(Note 1) Input Voltage....................................................7V Power Dissipation Internally Limited .... (Note 2) Maximum Junction Temperature.................... .....150C Storage Temperature Range.........-65C TJ +150C Lead Temperature, Time for Wave Soldering TO 220 Package....................................260C, 10s TO 252, TO 263, SOT 223 Package.............260C, 4s Continuous Power Dissipation (TA = + 25C) SOT 223(1).....................................................0.8W TO 252(1).......................................................1.0W TO 263(1).......................................................1.6W
Note (1): See Recommended Minimum Footprint.
G950
Absolute Maximum Ratings
(Note 1) Operating Conditions Input Voltage...........................................3.3V~6V Temperature Range........................0C TJ 125C
Electrical Characteristics
VIN =5V, IO = 1A, CIN = 1F, COUT =10 F, All specifications apply for TA = TJ = 25C. [Note 3] PARAMETER
Output Voltage Line Regulation Load Regulation Output Impedance Quiescent Current Ripple Rejection Dropout Voltage Short Circuit Current Over Temperature
CONDITIONS
VIN = 5V, 10mA < IO < 1A VIN = 3.3V, 10mA < IO < 500mA 3.3V < VIN < 6V, IO = 10mA VIN = 5V, 10mA < IO < 1A VIN = 3.3V, 10mA < IO < 500mA 200mA DC and 100mA AC, fo = 120Hz VIN = 5V fi = 120Hz,Vripple =2VP-P, Io = 100mA IO = 1A IO = 500mA IO = 100mA
MIN
2.475
TYP
2.50 3 35 25 80 0.6 46 1.15 420 200 1.6 150
MAX
2.575 30 50
UNITS
V mV mV mV m mA dB V mV mV A
C
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 G950 in SOT 223 package, JA is 156C/W; in TO 263 package, JA is 75C/W, and in the TO 252 package, JA is 125C/W (See recommend minimum footprint). The safe operation in SOT 223,TO 252 & TO 263 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 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 100mV 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.
Ver: 1.6 Dec 31, 2002
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.
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN= +5V, CIN=1F, COUT=10F, TA=25C, unless otherwise noted.)
Line Transient Load Transient
G950
Ch1: Vin (offset=5.0V) Ch2: Vout (offset=2.50V) CIN = 1uF Iout=100mA
Ch1: Iout (1A/div) Ch2: Vout (offset=2.50V)
Output Voltage vs. Load Current
2.600 1200 1100
Dropout Voltage vs. Load Current
Dropout Voltage (mV)
0 100 200 300 400 500 600 700 800 900 1000
2.580
1000 900 800 700 600 500 400 300 200 100
Ootput Voltage (V)
2.560
2.540
2.520
2.500
2.480
0
0 100 200 300 400 500 600 700 800 900 1000
Load Current (mA)
Load Current (mA)
Ground Current vs. Load Current
2.00 1.80 1.60
Ground Current (mA)
1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00
0 100 200 300 400 500 600 700 800 900 1000
Load Current (mA)
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN= +3.3V, CIN=1F, COUT=10F, TA=25C, unless otherwise noted.)
G950
Load Transient
Line Transient
Ch1: Vin (offset=3.3V) Ch2: Vout (offset=2.50V) CIN = 1uF Iout=100mA
Ch1: Iout (400mA/div) Ch2: Vout is AC coupled
Output Voltage vs. Load Current
2.550 2.545 500 450
Dropout Voltage vs. Load Current
Dropout Voltage (mV)
Ootput Voltage (V)
2.540 2.535 2.530 2.525 2.520 2.515 2.510 2.505 2.500 0 50 100 150 200 250 300 350 400 450 500 550 600
400 350 300 250 200 150 100 50 0 0 50 100 150 200 250 300 350 400 450 500 550 600
Load Current (mA)
Load Current (mA)
Ground Current vs. Load Current
2.00 1.80
Ground Current (mA)
1.60 1.40 1.20 1.00 0.80 0.60 0.40 0.20 0.00 0 100 200 300 400 500 600
Load Current (mA)
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
4
Global Mixed-mode Technology Inc.
G950
Safe Operating Area of SOT-223
1200 1000
TA=25C,Still Air 1oz Copper on SOT-223 Package Mounted on recommended mimimum footprint (RJA=156C/W) Maximum Recommended Output Current TA=25 TA=55 TA=85
Power Dissipation of SOT-223
1.0 0.9 0.8
Still Air 1oz Copper on SOT-223 Package Mounted on recommend mimimum footprint (RJA=156C/W)
Output Current (mA)
800 600 400 200 0 1.2
Power Dissipation (W)
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 25 35 45 55
1.6
2.0
2.4
2.8
3.2
3.6
4.0
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 of TO-252
1200
TA=25C,Still Air 1oz Copper on TO-252 Package 1000 Mounted on recommended mimimum footprint (RJA=125C/W) Maximum Recommended Output Current
Power Dissipation of TO-252
1.2 1.1 1.0 0.9
Output Current (mA)
Power Dissipation (W)
800 600 400 200 0 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
TA=25 TA=55 TA=85
0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 25 35 45 55 65 75 85 95 105 115 125
Still Air 1oz Copper on TO-252 Package Mounted on recommend mimimum footprint (RJA=125C/W)
Input-Output Voltaage Differential VIN-VOUT (V) Note: VIN(max) <= 6.5V
Amibent Temperature TA (C)
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
5
Global Mixed-mode Technology Inc.
G950
Safe Operating Area of TO-263
1200 1000
TA=25C,Still Air Maximum Recommended Output Current
Power Dissipation of TO-263
2.0 1.8 1.6
Still Air 1oz Copper on TO-263 Package Mounted on recommend mimimum footprint (RJA=75C/W)
Power Dissipation (W)
4.0
Output Current (mA)
800 600 400 200 0
1oz Copper on TO-263 Package Mounted on recommended mimimum footprint (RJA=75C/W)
TA=25 TA=55 TA=85
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0
1.2
1.6
2.0
2.4
2.8
3.2
3.6
25
35
45
55
65
75
85
95 105 115 125
Input-Output Voltaage Differential VIN-VOUT (V)
Amibent Temperature TA (C)
Note: VIN(max) <= 6.5V
Recommend Minimum Footprint
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
6
Global Mixed-mode Technology Inc.
Package Information
G950
E A E1 E1 R F
d D
D1
I
L
e b e1 b1
C A1
TO-220 (T3) Package SYMBOLS
A A1 b b1 C D D1 d E E1 e e1 F I L
MILLIMETERS MIN
4.318 2.46 0.69 1.143 0.304 3.429 8.53 2.62 9.906 2.84 2.29 4.83 1.143 3.454 13.589
INCHES MAX
4.826 2.72 0.94 1.397 0.460 3.683 9.04 2.87 10.40 5.13 2.79 5.33 1.397 3.962 14.351
MIN
0.170 0.097 0.027 0.045 0.012 0.135 0.336 0.103 0.390 0.112 0.090 0.190 0.045 0.136 0.535
MAX
0.190 0.107 0.037 0.055 0.018 0.145 0.356 0.113 0.410 0.202 0.110 0.210 0.055 0.156 0.565
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
7
Global Mixed-mode Technology Inc.
B R V 4 A 1 S 2 3 Z C
G950
T SEATING PLANE E
U K
F L D G 2 PL 0.13 (0.005) M T J H
TO-252 (T4) Package Notes: 1. Dimensioning and tolerancing per ansi y14.5m, 1982. 2. Controlling dimension : inch DIM
A B C D E F G H J K L R S U V Z
INCHES MIN
0.235 0.250 0.086 0.027 0.033 0.037 0.180BSC 0.034 0.018 0.102 0.090BSC 0.175 0.020 0.020 0.030 0.138 0.215 0.050 --0.050 --4.45 0.51 0.51 0.77 3.51 0.040 0.023 0.114 0.87 0.46 2.60
MILLIMETERS MAX
0.250 0.265 0.094 0.035 0.040 0.047
MIN
5.97 6.35 2.19 0.69 0.84 0.94 4.58BSC
MAX
6.35 6.73 2.38 0.88 1.01 1.19 1.01 0.58 2.89 2.29BSC 6.46 1.27 --1.27 ---
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
8
Global Mixed-mode Technology Inc.
E A A1 L3
G950
D
H L1 C
e L2 e1 b b1 A2
L
TO-263 (T5) Package SYMBOLS
A A1 A2 b b1 C D E e e1 H L L1 L2 L3
MILLIMETERS MIN
4.30 1.22 2.45 0.69 1.22 0.36 8.64 9.70 2.29 4.83 14.60 4.70 1.20 2.24 1.40MAX
INCHES MAX
4.70 1.32 2.69 0.94 1.40 0.56 9.652 10.54 2.79 5.33 15.78 5.84 1.778 2.84
MIN
0.169 0.048 0.104 0.027 0.048 0.014 0.340 0.382 0.090 0.190 0.575 0.185 0.047 0.088 0.055MAX
MAX
0.185 0.055 0.106 0.037 0.055 0.022 0.380 0.415 0.110 0.210 0.625 0.230 0.070 0.111
Ver: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
9
Global Mixed-mode Technology Inc.
A D B1 C
G950
13(4X)
H
E
L e e1 L2
13(4X)
A1 B
SOT-223 (T6) Package SYMBOLS
A A1 B B1 C D E e e1 H L L2 0
MILLIMETERS MIN
1.55 0.02 0.60 2.90 0.24 6.30 3.30 2.30 BSC 4.60 BSC 6.70 0.90 MIN 0.06 BSC 10 0 7.30 0.264
INCHES 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 0.090 BSC 0.181 BSC
MAX
0.071 0.0047 0.031 0.122 0.013 0.264 0.146
0.287 0.036 MIN 0.0024 BSC 10
Package Orientation
F e e d D ir e c tio n T O 2 5 2 2 6 3 P a c k a g e O r ie n ta tio n
F e e d D ir e c tio n S O T 2 2 3 P a c k a g e O r ie n ta tio n
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: 1.6 Dec 31, 2002
TEL: 886-3-5788833 http://www.gmt.com.tw
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