SS8053G
1.5A Ultra Low Dropout Regulator
FEATURES
Fixed output voltages
of
1.2/1.5/1.8/2.5/3.3V
Output current up to 1.5A
Over-current and over-temperature protection
Low dropout voltage 500mV @ 1.5A
Low ground current
SOT-223 package
DESCRIPTION
The
SS8053G
is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 1.5 Amps.
The
SS8053G features
500mV dropout voltages and very
low ground
current. Although designed for high current
loads,
these devices are also useful in lower current,
extremely
low dropout-critical systems, where their
minimal dropout voltage and ground current values are
important characteristics.
The
SS8053G
provides excellent regulation over variations
in line, load and temperature.
APPLICATIONS
Battery powered systems
Motherboards
Peripheral cards
Network cards
Set Top Boxes
Notebook Computers
Pb-free; RoHS compliant.
ORDERING
INFORMATION
SS8053-xxGT6
XX
PIN CONFIGURATION AND MARKING
G953-XX
G953-xx = SS8053-xxG
Packing:
TR: Tape and reel
1
YWWS
DATE/LOT CODE:
Y = year:
H=2005, I=2006, J=2007, ...
3
2
WW = work week (01 -> 52)
S = lot code sequence
Output voltage:
12: 1.2V
15: 1.5V
18: 1.8V
25: 2.5V
33: 3.3V
VIN GND VO
TYPICAL
APPLICATION CIRCUIT
3.3V
VIN
GND
22µF
VO
1.5V
47µF
9/27/2006 Rev.1.01
www.SiliconStandard.com
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SS8053G
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage………………………………….…………7V
Power Dissipation Internally Limited
(Note 2)
Maximum Junction Temperature.…………………150°C
Storage Temperature Range.……..-65°C
<T
J
<
+150°C
Reflow Temperature (soldering, 10sec)…..…....260°C
Thermal Resistance Junction to Ambient.……141°C/W
Thermal Resistance Junction to Case…………..20.1°C/W
ESD Rating (Human Body Model)……….………….2kV
OPERATING
CONDITIONS
(Note 1)
Input Voltage………………………………..…2.2V ~5.5V
Temperature Range………….………-40°C
<T
A
<
+85°C
ELECTRICAL
CHARACTERISTICS
V
IN
=5V, I
O
= 0.5A, C
IN
= 4.7µF, C
OUT
=10µF, T
A
= T
J
= 25°C unless otherwise specified (Note 3)
PARAMETER
Supply Voltage
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Ripple Rejection
Dropout Voltage
Short Circuit Current
SYMBOL
V
IN
V
O
CONDITION
V
IN
=V
O
+0.7V, I
O
=10mA
V
O
+0.7V < V
IN
< 5.5V, I
O
=10mA
10mA < I
O
< 1.5A
V
IN
=3.3V
fi=120Hz, 1V
P-P
, I
O
=100mA
I
O
=1.5A
MIN
2.2
-2
---
---
---
---
---
---
TYP
---
V
O
0.2
0.8
1.7
55
0.5
0.8
MAX
5.5
2
2
2
2.5
---
0.65
---
UNIT
V
%
%
%
mA
dB
V
A
I
Q
V
D
Note 1:
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Con-
ditions 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, T
Jmax
; total thermal
resistance,
Q
JA
, and ambient temperature T
A
. The maximum allowable power dissipation at any ambient
temperature is (T
jmax
-T
A
) /
Q
JA
. If this dissipation is exceeded, the die temperature will rise above 150°C
and
the chip
will go into thermal shutdown.
Note3:
Low duty pulse techniques are used during test to maintain
the
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 regu-
lator output no longer maintains regulation against fur-
ther reductions in input voltage. Measured when the
output drops 2% below its nominal value, dropout volt-
age 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
the
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 measure-
ment is made under conditions of low dissipation or by
using pulse techniques such that
the
average chip
temperature
is not significantly affected.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will
still
operate within specifications.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
9/27/2006 Rev.1.01
www.SiliconStandard.com
2 of 3
SS8053G
PHYSICAL DIMENSIONS
SOT-223 (unit: mm)
D
B1
A
SYMBOL
MIN
α
C
MAX
13°(4X)
H
E
L
e
e1
L2
Taping Specification
13°(4X)
A1
B
Feed Direction
SOT-223 Package Orientation
SYMBOL
A
A1
B
B1
C
D
E
e
e1
H
L
L2
α
MILLIMETER
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
0º
10º
0º
7.30
0.264
INCH
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
10º
Information furnished by Silicon Standard Corporation is believed to be accurate and reliable. However, Silicon Standard Corporation makes no
guarantee or warranty, expressed or implied, as to the reliability, accuracy, timeliness or completeness of such information and assumes no
responsibility for its use, or for infringement of any patent or other intellectual property rights of third parties that may result from its
use. Silicon Standard reserves the right to make changes as it deems necessary to any products described herein for any reason, including
without limitation enhancement in reliability, functionality or design. No license is granted, whether expressly or by implication, in relation to
the use of any products described herein or to the use of any information provided herein, under any patent or other intellectual property rights of
Silicon Standard Corporation or any third parties.
9/27/2006 Rev.1.01
www.SiliconStandard.com
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