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Global Mixed-mode Technology Inc.
G952
1.8V 1A Regulator
Features
Output current in excess of 1A Output voltage accuracy +2.5%/-2% Quiescent current, typically 480A Internal short circuit current limit Internal over temperature protection
General Description
The G952 positive 1.8V voltage regulator features the ability to source 1A of output current. The typical quiescent current is 0.48mA.
Applications
PC motherboard ADSL/Cable Modem Set-Top-Box LAN switch/Hub Broad band access
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
G952T23U G952T24U G952T25U G952T43U G952T63U G952T65U
ORDER NUMBER (Pb free)
G952T23Uf G952T24Uf G952T25Uf G952T43Uf G952T63Uf G952T65Uf
TEMP. RANGE
-40C~85C -40C~85C -40C~85C -40C~85C -40C~85C -40C~85C
PACKAGE
SOT-89 SOT-89 SOT-89 TO-252 SOT-223 SOT-223
1
GND GND VIN GND GND VIN
PIN OPTION 2
VOUT VIN GND VOUT VOUT GND
3
VIN VOUT VOUT VIN VIN VOUT
* 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
T2: SOT-89 T4: TO-252 T6: SOT-223 1 1: VOUT 2: VOUT 3: GND 4: GND 5: VIN 6: VIN
PIN OPTION
2 GND VIN VOUT VIN GND VOUT 3 VIN GND VIN VOUT VOUT GND
PACKING
U : Tape & Reel
Package Type
Typical Application
[Note 4]: Type of COUT
IO
Top View
Top View
VIN C1 1F
G952
IQ
VOUT COUT 10F
1
2
3
1
2
3
SOT-89 SOT- 223
TO-252
Ver: 2.6 Mar 19, 2007
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 Reflow Temperature (soldering, 10sec) . . . . . 260C Thermal Resistance Junction to Ambient, (JA) SOT-89 . . . . . . . . . . . . . . . . . . . . . . . . . . . .173C/W SOT-223 . . . . . . . . . . . . . . . . . . . . . . . . . . .148C/W TO-252 . . . . . . . . . . . . . . . . . . . . . . . . . . . .124C/W Thermal Resistance Junction to Case, (Jc) SOT-89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25C/W SOT-223. . . . . . . . . . . . . . . . . . . . . . . . . . . 22C/W TO-252. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7C/W
Note (1): See Recommended Minimum Footprint
G952
Absolute Maximum Ratings
Operating Conditions (Note 1) Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . .2.7V~6.5V Temperature Range. . . . . . . . . . . . . . -40C TA 85C
Electrical Characteristics
VIN =3.3V, IO = 1A, CIN = 1F, COUT =10F, All specifications apply for TA = TJ = 25C. [Note 3]
PARAMETER
Output Voltage Line Regulation Load Regulation Output Impedance Quiescent Current Ripple Rejection 10mA < IO < 1A 10mA < IO < 550mA (SOT-89) 3V < VIN < 6.5V, IO = 10mA 10mA < IO < 1A 10mA < IO < 550mA (SOT-89) 200mA DC and 100mA AC, fo = 120Hz VIN = 3.3V fi = 120Hz,Vripple =1VP-P, Io = 100mA IO = 0A Dropout Voltage IO = 100mA IO = 500mA for (SOT-89,SOT-223,TO-252) IO = 1A only for (SOT-223,TO-252) Minimum footprint VIN = 3V(SOT-223) (0.0625 square inch) Continuous Test, Mounted on 0.53 TA = 25C, TJ 150C, VIN = 3.3V(SOT-223) square inch pcb area VOUT within 2% Mounted on 0.16 VIN = 3.3V(SOT-89) square inch pcb area
CONDITION
MIN
1.764 1.764 --------300 ---------------------
TYP
1.800 1.800 3 30 30 80 480 53 880 895 950 1160 660 1 0.5 1.6 150
MAX
1.845 1.845 30 50 50 --1500 ---------------------
UNIT
V V mV mV mV m A dB
mV
mA A A A C
Output Current
Short Circuit Current Over Temperature
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 G952 in SOT-89 package. JA is 173C/W For the G952 in SOT-223 package, JA is 148C/W, in TO-252 package, JA is 124C/W. (See recommend minimum footprint). The safe operation in SOT- 89, SOT-223, TO-252 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.
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
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.
G952
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: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN= +3.3V, CIN=1F, COUT=10F, TA=25C, unless otherwise noted.)
Line Transient Line Transient
G952
Load Transient
Load Transient
Load Transient
Load Transient
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G952
Load Transient Response (SOT-89)
Line Transient Response (SOT-89)
Short Circuit Current (SOT-89)
Overcurrent Protection Characteristics (SOT-89)
Start-up (SOT-89)
60
Ripple Rejection (SOT-89)
IL=10mA 50
Ripply Rejection(dB)
IL=100mA
40 30 20 10 0 10
IL=500mA
CIN=10F ; COUT =10F
100
1000 Frequency (Hz)
10000
100000
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Quiescent Current vs. VIN (SOT-89)
120 110
Quiescent Current (A)
G952
Output Voltage vs. I L (SOT-89)
TA=25C V IN=6V
1.834 1.824
Output Voltage (V)
100 90 80 70 60 50 2.5
TA=85C
1.814 1.804 1.794 1.784 1.774 1.764
TA=-25C
TA=25C
V IN=4V V IN=5V
3
3.5
4 4.5 V IN (V)
5
5.5
6
0
100
200 300 400 Output Cirrent (mA)
500
600
Output Voltage vs. TA (SOT-89)
1400 1.844
Output Voltage (V)
Dropout Voltage vs. I L (SOT-89)
IL=10mA
Dropout Voltage (mV)
1200 1000 800 600 400 200 TA=-25C TA=25C TA=85C
1.819
V IN=5V
1.794 V IN=4V 1.769
1.744 -25 -15 -5
5
15 25 35 45 55 65 75 85 Temperature ( C)
0 100
200
300 400 IL (mA)
500
600
Output Voltage vs. Load Current
1.900 1.880 1.860 1600 1400
Dropout Voltage vs. Load Current
Ootput Voltage (V)
1.840 1.820 1.800 1.780 1.760 1.740 1.720 1.700
0 100 200 300 400 500 600 700 800 900 1000
Dropout Voltage (mV)
1200 1000 800 600 400 200 0
0 100 200 300 400 500 600 700 800 900 1000
Load Current (mA)
Load Current (mA)
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Ground Current vs. Load Current
2.00 1.80 1.60
1100 Mounted on 1 square inch, 1oz copper pcb area (R JA=70C/W) 1000 900
G952
Safe Operating Area of SOT-223
TA=25C,Still Air
Load Current (mA)
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
800 700 600 500 400 300 200 100 0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
Mounted on 0.53 square inch, 1oz copper pcb area (RJA=85 C/W)
Mounted on recommend minimum footprint, 1oz copper pcb area (See Recommend minimum footprint) (R JA=156C/W)
3.2 3.4 3.6 3.8 4 4.2 4.4 4.6
Load Current (mA)
Input-Output Voltage Dif f erential (V)
SOT-223 Max. Power Dissipation vs. PCB Top Copper Area TAMB = 25C ; Still Air
3
Max. Dissipation Power (W)
SOT-223 Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area )
3 2.5 2 1.5 1 0.5 0
Unit:in2 A=0.5 A=1.0 A=1.5 A=2.0 A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0
2 1.5 1 0.5 0 0.5 1.5 2.5 3.5 4.5 PCB Top Copper Area (in2)
Max. Dissipation Power (W)
2.5
25
45
TAMB ( C)
65
85
SOT-89 Max. Power Dissipation vs. PCB Top Copper Area TAMB = 25C ; Still Air
3 2.5 2 1.5 1 0.5 0 0.5 1.5 2.5 3.5 PCB Top Copper Area (in2) 4.5 3 2.5 2 1.5 1 0.5 0 25
SOT-89 Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area )
Unit:in2 A=0.5
Max. Dissipation Power (W)
Max. Dissipation Power (W)
A=1.0 A=1.5 A=2.0 A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0
45
TAMB (C)
65
85
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G952
SOT-252 Max. Power Dissipation vs. PCB Top Copper Area TAMB = 25C ; Still Air
4 3.5
Max. Dissipation Power (W)
SOT-252 Max. Power Dissipation vs. TAMB (still air) ( Different PCB Top Copper Area )
4 3.5
Max. Dissipation Power (W)
Unit:in2 A=0.5 A=1.0
3 2.5 2 1.5 1 0.5 0 0.5 1.5 2.5 3.5 4.5 PCB Top Copper Area (in2)
3 2.5 2 1.5 1 0.5 0 25 45 TAMB ( C) 65 85
A=1.5 A=2.0 A=2.5 A=3.0 A=3.5 A=4.0 A=4.5 A=5.0
Recommended Minimum Footprint
SOT-89 SOT-223 TO-252
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
Package Information
G952
D D1
A POLISH
E
V HE
A1 b e C b1
SOT-89 (T2) Package
SYMBOL
A A1 b b1 C D D1 HE E e V
DIMENSIONS IN MILLIMETER MIN NOM MAX
1.40 0.80 0.36 0.41 038 4.40 1.40 ----2.40 2.90 ----1.50 1.04 0.42 0.47 0.40 4.50 1.60 ----2.50 3.00 2.60 1.60 ----0.48 0.53 0.43 4.60 1.75 4.25 2.60 3.10 -----
MIN
0.055 0.031 0.014 0.016 0.014 0.173 0.055 ----0.094 0.114 -----
DIMENSIONS IN INCHE NOM MAX
0.059 0.041 0.016 0.018 0.015 0.177 0.062 ----0.098 0.118 0.102 0.063 ----0.018 0.020 0.017 0.181 0.069 0.167 0.102 0.122 -----
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
D D1 C1 B
G952
A
V L b1 L3 L2 e e1 b C L1 A1 E
TO-252 (T4) Package SYMBOL
A A1 B b b1 C C1 D D1 E e e1 L L1 L2 L3 V
MILLIMETERS MIN
2.190 0.000 0.880 0.500 0.700 0.430 0.430 6.350 5.200 5.400 2.300 TYP 4.500 8.830 2.550 1.400 0.350 3.800 4.700 10.77 2.900 1.780 1.020 4.320 0.177 0.348 0.100 0.055 0.014 0.150
INCHES MAX
2.400 0.127 1.650 0.880 0.900 0.580 0.580 6.730 5.460 6.220
MIN
0.086 0.000 0.035 0.020 0.028 0.017 0.017 0.250 0.205 0.213 0.091 TYP
MAX
0.094 0.005 0.065 0.035 0.035 0.023 0.023 0.265 0.215 0.245 0.185 0.424 0.114 0.070 0.040 0.170
Ver: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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Global Mixed-mode Technology Inc.
A D B1 C
G952
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
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 0 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
Taping Specification
PACKAGE
SOT-89 SOT-223
Feed Direction SOT-89 223 Package Orientation Feed Direction TO-252 Package Orientation
Q'TY/REEL
1,000 ea 2,500 ea 2,500 ea
TO-252
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: 2.6 Mar 19, 2007
TEL: 886-3-5788833 http://www.gmt.com.tw
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