SSC SS8053

SS8053G
1.5A Ultra Low Dropout Regulator
FEATURES
DESCRIPTION
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
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.
APPLICATIONS
Battery powered systems
Motherboards
Peripheral cards
Network cards
Set Top Boxes
Notebook Computers
The SS8053G provides excellent regulation over variations
in line, load and temperature.
Pb-free; RoHS compliant.
ORDERING INFORMATION
PIN CONFIGURATION AND MARKING
SS8053-xxGT6 XX
G953-XX
Packing:
TR: Tape and reel
YWWS
G953-xx = SS8053-xxG
DATE/LOT CODE:
Y = year: H=2005, I=2006, J=2007, ...
1
2
3
VIN GND VO
Output voltage:
12: 1.2V
15: 1.5V
18: 1.8V
25: 2.5V
33: 3.3V
WW = work week (01 -> 52)
S = lot code sequence
TYPICAL APPLICATION CIRCUIT
1.5V
3.3V
VIN
VO
GND
22µF
9/27/2006 Rev.1.01
47µF
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SS8053G
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage………………………………….…………7V
OPERATING CONDITIONS
(Note 1)
Input Voltage………………………………..…2.2V ~5.5V
Temperature Range………….………-40°C <T A < +85°C
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.……141°C/W
Thermal Resistance Junction to Case…………..20.1°C/W
ESD Rating (Human Body Model)……….………….2kV
ELECTRICAL CHARACTERISTICS
VIN =5V, IO = 0.5A, CIN = 4.7µF, COUT =10µF, TA = TJ = 25°C unless otherwise specified (Note 3)
PARAMETER
MIN
TYP
MAX
UNIT
VIN=VO +0.7V, IO=10mA
2.2
-2
--VO
5.5
2
V
%
Line Regulation
VO+0.7V < VIN < 5.5V, IO=10mA
---
0.2
2
%
Load Regulation
Quiescent Current
IQ
10mA < IO < 1.5A
VIN=3.3V
-----
0.8
1.7
2
2.5
%
mA
Ripple Rejection
Dropout Voltage
VD
fi=120Hz, 1VP-P, IO=100mA
IO=1.5A
-----
55
0.5
--0.65
dB
V
---
0.8
---
A
Supply Voltage
Output Voltage
SYMBOL
VIN
VO
CONDITION
Short Circuit Current
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, QJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient
temperature is (Tjmax-TA) / 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 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 the average chip temperature is not significantly
affected.
9/27/2006 Rev.1.01
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 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.
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SS8053G
PHYSICAL DIMENSIONS
SOT-223 (unit: mm)
A
D
SYMBOL
B1
α
MIN
MAX
C
13°(4X)
H
E
L
L2
e
Taping Specification
e1
13°(4X)
Feed Direction
SOT-223 Package Orientation
A1
B
SYMBOL
MILLIMETER
INCH
MIN
MAX
MIN
MAX
A
A1
1.55
0.02
1.80
0.12
0.061
0.0008
0.071
0.0047
B
B1
0.60
2.90
0.80
3.10
0.024
0.114
0.031
0.122
C
D
0.24
6.30
0.32
6.70
0.009
0.248
0.013
0.264
E
e
e1
H
3.30
3.70
0.130
2.30 BSC
4.60 BSC
6.70
0.146
0.090 BSC
0.181 BSC
7.30
0.264
0.287
L
0.90 MIN
0.036 MIN
L2
α
0.06 BSC
0.0024 BSC
0º
10º
0º
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
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