SSC SS6117A

SS6117AG
1A Low-Dropout Positive Regulator
FEATURES
DESCRIPTION
Dropout voltage 1.3V at 1A output current.
Fast transient response.
The SS6117AG is a low-dropout three-terminal
Line regulation typically at 0.015%.
Load regulation typically at 0.1%.
Current-limiting and thermal protection.
Adjustable output voltage or fixed at 1.8V, 2.5V,
2.85V, 3.3V, 5V.
output voltage is adjustable with the use of a
regulator with 1A output current capability. The
Pb-free; RoHS-compliant packages
resistor divider or fixed at 1.8V, 2.5V, 2.85V, 3.3V,
or 5V. Dropout voltage is guaranteed to be a
maximum of 1.5V at the maximum output
current. The low dropout voltage and fast transient
response make this device ideal for low voltage
microprocessor applications. The current-limiting
and thermal protection reduce the risk that an
APPLICATIONS
overload condition might create excessive junction
Active SCSI termination.
Battery chargers.
Constant-current regulators.
Post regulator for switching supplies.
temperatures.
TYPICAL APPLICATION CIRCUIT
3
SS6117AG
2
VIN
5V
VOUT
3.3V
1 ADJ
C1 +
10µF
VREF
RF1
125Ω +
1%
C2
RF2
10µF
205Ω
1%
VREF=VOUT - VADJ=1.25V (typ.)
VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2
IADJ=55µA (typ.)
(1) C1 is needed if the device is mounted
far from the filter capacitors.
(2) C2 is required for stability.
Adjustable Voltage Regulator
3
VIN
5V
SS6117A-33G
2
VOUT
3.3V
1
C1
10µF
+
+
C2
10µF
GND
Fixed Voltage Regulator
8/16/2006 Rev.3.01
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SS6117AG
ORDERING INFORMATION
PIN CONFIGURATION
SS6117A-xxGx xx
Packing
TO-252-3
TR: Tape and reel
TB: Tubes
TOP VIEW
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
Package type
GE: TO-252-3
GM: TO-263-3
GT: TO-220
GY: SOT-223
2
3
TO-263-3
TOP VIEW
Output voltage
Absent:
18:
25:
28:
33:
50:
1
Adjustable
1.8V
2.5V
2.85V
3.3V
5.0V
Example: SS6117A-25GE TR
2.5V version in TO-252-3 package
shipped on tape and reel
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
1
2
3
1
2
3
TO-220
FRONT VIEW
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
SS6117AGM TR
SOT-223
Adjustable version in TO-263-3 package
shipped on tape and reel
TOP VIEW
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
1
2
3
ABSOLUTE MAXIMUM RATINGS
VIN pin to ADJ/GND pin ...........................…….......…….......……………...................... 7V
Operating junction temperature range
......................………...................... 0°C ~ 125°C
Power dissipation …..………………………………………………………….Internally Limited
Thermal resistance (junction to case)
TO-220 ………........……...…………... 3°C /W
TO-263 …....……....…………………….3°C /W
SOT-223 …....……..………..………..15°C /W
TO-252 ……………………..………..12.5°C /W
Thermal resistance (junction to ambient)
(assuming no ambient airflow, no heatsink)
Storage temperature range
..................................…………................. - 65°C ~ 150°C
Lead temperature (soldering) 10 sec.
8/16/2006 Rev.3.01
TO-220 …....……....……….…….…… 50°C/W
TO-263 ….....…….....………...………..60°C/W
SOT-223 …………………..…………..155°C/W
TO-252
……………………………..100°C/W
.......................………............………...….......260°C
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SS6117AG
ELECTRICAL CHARACTERISTICS
(VIN=5V, TJ=25°C, Io=10mA, unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
1.238
1.25
1.262
1.225
1.25
1.275
SS6117A-18G, VIN=3.3V
1.78
1.80
1.82
SS6117A-25G, VIN=5V
2.47
2.50
2.53
SS6117A-28G, VIN=5V
2.82
2.85
2.88
SS6117A-33G, VIN=5V
3.26
3.30
3.33
SS6117A-50G, VIN=7V
4.95
5.00
5.05
0.98VOUT
VOUT
1.02VOUT
2.65≤VIN≤7V, TJ=25°C
0.015
0.2
0°C≤TJ≤125°C
0.035
0.2
TJ=25°C, IO=10mA ~1A
0.1
0.3
0°C≤TJ≤125°C
0.2
0.4
1.3
1.5
TJ=25°C
Reference voltage
0°C≤TJ≤125°C
2.65V≤VIN≤7V
UNIT
V
10mA≤Io≤1A
Output voltage
V
SS6117AG
0°C≤TJ≤125°C
2.65V≤VIN≤7V
10mA≤IO≤1A
Line regulation
Load regulation
Dropout voltage
Current limit
∆VOUT, ∆VREF=1%, IO=1A
0°C≤TJ≤125°C
0°C≤TJ≤125°C
1
%VOUT
%VOUT
V
A
2.65≤VIN≤7V
Adjustable pin current (IADJ)
10mA≤IO≤1A
55
120
µA
0.2
5
µA
0°C≤TJ≤125°C
2.65≤VIN≤7V
Adjustable pin current change
(∆IADJ)
10mA≤IO≤1A
0°C≤TJ≤125°C
IO=0.5A
0.5
% VOUT
Temperature stability
0°C≤TJ≤125°C
Minimum load current (Adj.)
0°C≤TJ≤125°C
5
10
mA
Quiescent current (fixed outputs)
0°C≤TJ≤125°C
10
14
mA
RMS output noise (% of VOUT )
10Hz≤f≤10KHz
0.003
%VOUT
Ripple rejection ratio
120Hz input ripple
COUT=25µF
72
dB
8/16/2006 Rev.3.01
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SS6117AG
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage
(mV, AC)
Output Voltage
(V, AC)
0.1
0.05
0
-0.05
VIN=5V
CIN=1µF
COUT=10µF (Tantalum)
VOUT=3.3V
0.4A
0.1A
40
80
120
--50
COUT=10µF (Tantalum)
VOUT=3.3V
160
7.0
6.0
0
200
10
20
30
40
50
Time (µS)
Time (µS)
Fig. 1 Load Transient Response
Fig. 2 Line Transient Response
1.26
1.24
1.22
1.20
1.18
1.16
200
0
400
600
800
1000
Minimum Operating Current (mA)
Minimum Differential Voltage (V)
0
0
--100
Input Voltage (V)
Load Current
-0.1
50
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0
1
Output Current (mA)
Fig. 3
2
3
4
5
Differential Voltage (V)
Dropout Voltage (VOUT=3.3V)
Fig. 4
Minimum Operating Current
Minimum Load Current (mA)
5
TJ=125°C
4
3
TJ=25°C
2
TJ=0°C
1
0
1
2
3
4
5
6
7
8
9
Input/Output Differential (V)
Fig. 5 Minimum Load Current (Adjustable Version)
8/16/2006 Rev.3.01
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SS6117AG
BLOCK DIAGRAM
VIN
+
GM
VREF +
1.25V
Current Amp.
-
Thermal
Limit
Current
Limit
55µA
VOUT
For fixed output voltage
device
GND
ADJ
PIN DESCRIPTIONS
ADJ
-
Providing VREF=1.25V (typ.) for adjustable VOUT. VREF=VOUT -VADJ and IADJ=55µA (typ.)
(GND PIN- Power ground.)
VOUT -
Adjustable output voltage.
VIN
Power input.
-
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SS6117AG
PHYSICAL DIMENSIONS (unit: mm)
SOT-223
D
S
Y
M
B
O
L
b2
SOT-223
MILLIMETERS
MIN.
MAX.
A
E
E1
A
A
SEE VIEW B
e
e1
WITH PLATING
c
A
A2
b
A1
0.02
0.10
A2
1.55
1.65
b
0.66
0.84
b2
2.90
3.10
c
0.23
0.33
D
6.30
6.70
E
6.70
7.30
E1
3.30
3.70
e
2.30 BSC
e1
4.60 BSC
L
BASE METAL
1.80
0.90
θ
SECTION A-A
8°
0°
GAUGE PLANE
SEATING PLANE
θ
VIEW B
0.25
L
TO-263-3
A
S
Y
M
B
O
L
c2
L2
H
D
L1
E
A
b2
A
e
SEE VIEW B
b
TO-263-3
MILLIMETERS
MIN.
MAX.
A
4.06
4.83
A1
0.00
0.25
b
0.51
0.99
b2
1.14
1.78
c
0.38
0.74
1.65
c2
1.14
D
8.38
9.65
E
9.65
10.67
e
2.54 BSC
H
14.61
15.88
c
WITH PLATING
BASE METAL
SECTION A-A
θ
2.79
--
1.68
L2
--
SEATING PLANE
θ
1.78
0.25 BSC
0°
8°
A1
L3
8/16/2006 Rev.3.01
1.78
L3
GAUGE PLANE
L
VIEW B
L
L1
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SS6117AG
PHYSICAL DIMENSIONS (unit: mm) (cont.)
A
TO-220
S
Y
M
B
O
L
A1
MIN.
MAX.
3.56
4.82
A1
0.51
1.39
A2
2.04
2.92
b
0.38
1.01
b2
1.15
1.77
c
0.35
0.61
D
14.23
16.51
H1
D1
D
P
b
c
WITH PLATING
L
L1
BASE METAL
SECTION A-A
TO-220
MILLIMETERS
A
Q
E
D1
8.38
9.02
E
9.66
10.66
2.54 BSC
e
A
b2
e
A2
H1
5.85
6.85
L
12.70
14.73
L1
--
6.35
P
3.54
4.08
Q
2.54
3.42
A
E
S
Y
M
B
O
L
c2
b3
L4
H
D
L3
TO-252-3
A
A
A
e
SEE VIEW B
c
WITH PLATING
BASE METAL
SECTION A-A
θ
SEATING PLANE
L1
MAX.
A
2.19
2.38
A1
0.00
0.13
b
0.64
0.89
b3
4.95
5.46
c
0.46
0.61
c2
0.46
0.89
D
5.33
6.22
E
6.35
6.73
2.28 BSC
H
9.40
L
1.40
10.41
1.78
L1
2.67 REF
L2
0.51 BSC
L3
0.89
2.03
L4
--
1.02
θ
0°
8°
A1
L2
L
MILLIMETERS
MIN.
e
b
GAUGE PLANE
TO-252-3
VIEW B
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