GMT G9966 3a low dropout regulator with enable Datasheet

G9966
Global Mixed-mode Technology Inc.
3A Low Dropout Regulator with Enable
Features
General Description
„
The G9966 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 3 Amps. Since it has
superior dropout characteristics compared with regular
LDOs, it can be used to supply 2.5V on motherboards
or 1.5V, 1.8V, 3.3V on peripheral cards from the power
supply thus allowing the elimination of costly heatsinks.
An enable pin further reduces power dissipation while
shut down. The G9966 provides excellent regulation
over variations in line, load and temperature. It provides over current and over temperature protection
functions.
„
„
„
„
„
1.5V, 1.8V, 2.5V, 3.3V and Adjustable Outputs
Over Current and Over Temperature Protection
Output Current 3A
Enable Pin
20µA Quiescent Current in Shutdown
TO-263-5 Package
Applications
„
„
„
„
„
„
Battery Powered Systems
Motherboards
Peripheral Cards
Network Cards
Set Top Boxes
Notebook Computers
The G9966 is available with 1.5V, 1.8V, 2.5V, 3.3V
and adjustable outputs in TO-263-5 package.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
(Pb free)
G9966-15TGU
G9966-15
-40°C ~ +85°C
TO-263-5
G9966-18TGU
G9966-25TGU
G9966-18
G9966-25
-40°C ~ +85°C
-40°C ~ +85°C
TO-263-5
TO-263-5
G9966-33TGU
G9966-ADJTGU
G9966-33
G9966
-40°C ~ +85°C
-40°C ~ +85°C
TO-263-5
TO-263-5
Pin Configuration
Typical Application Circuit
G9966-XX
G9966-XX
VEN
VEN
VIN
VIN
VO
VO
C1
220µF
1
2
3
4
GND
C2
220µF
5
VEN VIN GND VO N.C.
TO-263-5
G9966-ADJ
G9966-ADJ
VEN
VEN
VIN
VIN
VO
VO
R1
C1
220µF
1
2
3
4
GND
ADJ
C2
220µF
R2
5
VEN VIN GND VO ADJ
TO-263-5
1.2 (R1+R2)
Volts
R2
R2=12kΩ is recommended
VO =
TEL: 886-3-5788833
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Ver: 0.6 Preliminary
May 19, 2006
1
G9966
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
Operation Conditions
(Note 1)
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . .2.2V ~5.5V
Temperature Range . .. . . . . . . . . . .-40°C ≤TA ≤ +85°C
(Note 1)
Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
VEN Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . .VIN+0.3V
Power Dissipation Internally Limited
(Note 2)
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)
TO-263-5(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
Thermal Resistance Junction to Case, (θJc)
TO-263-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..5°C/W
ESD Rating (Human Body Model) . . . . . . . . .. . . .2kV
Note (1): See Recommended Minimum Footprint
Electrical Characteristics
VEN = VIN, VIN = 5V, IO = 0.5A, CIN = COUT = 220µF, TA = TJ = 25°C unless otherwise specified (Note 3)
PARAMETER
Supply Voltage
Output Voltage
SYMBOL
VIN
VO
Line Regulation
TYP
MAX
UNIT
VIN = VO +0.7V, IO = 10mA
2.2
-2
--VO
5.5
2
V
%
VO+0.7V < VIN < 5.5V, IO = 10mA
---
0.3
2
%
---
1
2
%
G9966-25 VIN = 5V, 10mA < IOUT < 3A
G9966-33 VIN = 5V, 10mA < IOUT < 3A
IQ
Ripple Rejection
Dropout Voltage
MIN
G9966-15 VIN = 2.5V, 10mA < IOUT < 3A
G9966-18 VIN = 3.8V, 10mA < IOUT < 3A
Load Regulation
Quiescent Current
CONDITION
VD
VIN = 5V
---
3
10
mA
fi = 120Hz, 1VP-P, IO = 100mA
G9966-15 ΔVOUT = 2%, IOUT = 3A
-----
55
0.85
--1
dB
G9966-18 ΔVOUT = 2%, IOUT = 3A
G9966-25 ΔVOUT = 2%, IOUT = 3A
G9966-33 ΔVOUT = 2%, IOUT = 3A
-----
0.8
0.6
0.95
0.8
0.7
V
---
0.55
Short Circuit Current
---
1
---
A
Over Temperature
VEN Voltage High
VENH
Output Active
--1.6
150
---
-----
°C
V
VEN Voltage Low
VEN Bias Current Low
VENL
IENL
Output Disabled
VEN = 0.4V
-----
-----
0.4
20
V
µA
Shutdown Current
ADJ Reference Voltage
VREF
VIN = 5V, VEN = 0V
VIN=2.2V, VADJ=VOUT, IO=10mA
--1.176
20
1.2
35
1.224
µA
V
---
0.2
---
V
ADJ Pin Threshold
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,
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.
Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
May 19, 2006
2
Global Mixed-mode Technology Inc.
G9966
Definitions
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.
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.
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 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: 0.6 Preliminary
May 19, 2006
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G9966
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
ViN-VOUT =3V, CIN = 220µF, COUT =220µF, TA = 25°C, unless otherwise noted.
Line Transient Response
Load Transient Response
Short Circuit Current
Ripple Rejection
70
Ripple Rejection (dB)
60
IL=1A
50
40
30
IL=2A
IL=3A
20
10
0
10
100
1000
10000
100000 1000000
Frequency (Hz)
G9966-33 Overcurrent
Protection Characteristics
G9966-33 Start-up
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
May 19, 2006
4
G9966
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G9966-18 Overcurrent Protection Characteristics
G9966-18-Start-up
G9966-18-Start-up
G9966 Max. Power Dissipation
vs. PCB Top Copper Area
G9966 Max. Power Dissipation vs. TAMB
4.5
4.5
4
4
Max. Dissipation Power (W)
Max. Dissipation Power (W)
G9966-33 Start-up
3.5
3
2.5
2
1.5
1
Unit:in2
A=0.5
A=1.0
3.5
A=1.5
3
A=2.0
2.5
A=2.5
2
A=3.0
1.5
A=3.5
1
A=4.0
A=4.5
0.5
0.5
0
0
A=5.0
0.5
1.5
2.5
3.5
25
4.5
PCB Top Copper Area (in2)
35
45
55
65
TAMB (°C)
75
85
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
May 19, 2006
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G9966
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G9966-18 Dropout Voltage vs. IL
G9966-18 Quiescent Current vs. Temperature
2.0
3.0
1.8
1.6
2.5
Dropout Voltage (V)
Quiescent Current (mA)
IL=10mA
2.0
1.5
VIN=4V
1.4
1.2
1.0
0.8
0.6
TA=85°C
0.4
VIN=5V
TA=-25°C
0.2
1.0
0.0
-25 -15 -5
5
1
15 25 35 45 55 65 75 85
Temperature (°C)
G9966-18 Output Voltage vs. Temperature
1.5
2
IL (A)
2.5
3
G9966-18 Output Voltage vs. IL
1.825
1.824
IL=10mA
1.814
Output Voltage (V)
1.820
Output Voltage (V)
TA=25°C
1.815
1.810
IL=5A
IL=4A
1.805
1.804
1.794
VIN=4V
VIN=5V
1.784
1.774
TA=25°C
1.764
1.800
5
15
25
35
45
55
Temperature (°C)
65
75
0
85
0.5
1
1.5
2
2.5
3
IL (A)
G9966-33 Dropout Voltage vs.IL
G9966-33 Quiescent Current vs. Temperature
4.0
1400
Dropout Voltage (mV)
Quiescent Current (mA)
1200
3.5
VIN=6V
3.0
2.5
1000
800
600
400
TA=85°C
VIN=5V
200
2.0
-25 -15 -5
5
0
1.0
15 25 35 45 55 65 75 85
TA=-25°C TA=25°C
1.5
2.0
2.5
3.0
IL (A)
Temperature (°C)
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
May 19, 2006
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G9966
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G9966-33 Output Voltage vs. Temperature
G9966-33 Output Voltage vs. IL
3.334
3.334
3.314
3.314
VIN=6V
Output Voltage (V)
Output Voltage (V)
TA=25°C
3.294
3.274
VIN=5V
3.254
VIN=6V
3.294
3.274
VIN=5V
3.254
IL=200mA
3.234
3.234
-25
-5
15
35
55
75
0
1
IL (A)
Temperature (°C)
2
3
G9966-25 Dropout Voltage vs.IL
G9966-25 Quiescent Current vs. Temperature
3.50
1800
Dropout Voltage (mV)
Quiescent Current (mA)
1600
3.00
2.50
2.00
VIN=5V
VIN=6V
1.50
1400
1200
1000
800
600
TA=85°C
400
TA=25°C
200
TA=-25°C
0
1.00
-25 -15 -5
5
15
25 35
45
55
65
75
1
85
1.5
2
2.5
3
IL (A)
Temperature (°C)
G9966-25 Output Voltage vs. IL
G9966-25 Output Voltage vs. Temperature
2.55
2.59
2.54
Output Voltage (V)
Output Voltage (V)
TA=25°C
2.53
2.57
2.55
2.53
2.51
VIN=5V
VIN=4V
2.49
2.52
2.51
2.5
2.49
VIN=4V
2.48
VIN=5V
2.47
2.47
IL=10mA
2.46
2.45
2.45
-25
-5
15
35
55
0
75
0.5
1
1.5
2
2.5
3
IL (A)
Temperature (°C)
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
May 19, 2006
7
Global Mixed-mode Technology Inc.
G9966
Recommended Minimum Footprint
TO-263-5
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.6 Preliminary
May 19, 2006
8
G9966
Global Mixed-mode Technology Inc.
Package Information
A
E
c2
L2
D
L
L1
e
b
C
TO-263-5 Package
Note:
1. JEDEC Outline: N/A
DIMENSION IN MM
MIN
MAX
DIMENSION IN INCH
MIN
MAX
A
4.064
4.826
0.160
b
c
0.686
0.940
0.027
C2
D
1.143
8.636
E
e
L
9.652
14.605
15.875
0.575
0.625
L1
L2
2.286
-----
2.794
2.921
0.090
-----
0.110
0.115
SYMBOL
0.381 TYP
0.190
0.037
0.015 TYP
1.397
9.652
0.045
0.340
10.287
0.380
1.702 BSC
0.055
0.380
0.405
0.067 BSC
Taping Specification
PACKAGE
Q’TY/BY REEL
TO-263-5
800 ea
Feed Direction
TO-263-5 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: 0.6 Preliminary
May 19, 2006
9
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