SS6117A-28GETB [SSC]
1A Low-Dropout Positive Regulator; 1A低压降稳压器正
| 型号： | SS6117A-28GETB |
| 厂家： | 
SILICON STANDARD CORP. |
| 描述： | 1A Low-Dropout Positive Regulator |
| 文件： | 总7页 (文件大小：219K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SS6117AG
1A Low-Dropout Positive Regulator
FEATURES
DESCRIPTION
Dropout voltage 1.3V at 1A output current.
The SS6117AG is a low-dropout three-terminal
regulator with 1A output current capability. The
output voltage is adjustable with the use of a
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
overload condition might create excessive junction
temperatures.
Fast transient response.
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.
Pb-free; RoHS-compliant packages
APPLICATIONS
Active SCSI termination.
Battery chargers.
Constant-current regulators.
Post regulator for switching supplies.
TYPICAL APPLICATION CIRCUIT
2
VREF=VOUT - VADJ=1.25V (typ.)
VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2
IADJ=55mA (typ.)
3
SS6117AG
VIN
5V
VOUT
3.3V
ADJ
1
VREF
RF1
125W
1%
+
+
C1
10mF
C2
10mF
RF2
205W
1%
(1) C1 is needed if the device is mounted
far from the filter capacitors.
(2) C2 is required for stability.
Adjustable Voltage Regulator
2
3
SS6117A-33G
V
5V
IN
V
3.3V
OUT
1
+
+
C1
10mF
C2
10mF
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
TOP VIEW
TR: Tapeandreel
TB: Tubes
1
2
3
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
Package type
GE: TO-252-3
GM: TO-263-3
GT: TO-220
TO-263-3
TOP VIEW
GY: SOT-223
1: ADJ (GND)
2: VOUT (TAB)
3: VIN
1
2
3
Output voltage
Absent: Adjustable
18: 1.8V
25: 2.5V
28: 2.85V
33: 3.3V
TO-220
FRONT VIEW
50: 5.0V
1: ADJ (GND)
2: VOUT (TAB)
1
2
3
Example: SS6117A-25GE TR
3: VIN
2.5V version in TO-252-3 package
shipped on tape and reel
SS6117AGM TR
SOT-223
TOP VIEW
Adjustable version in TO-263-3 package
shipped on tape and reel
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) TO-220 …....……....……….…….…… 50°C/W
(assuming no ambient airflow, no heatsink)
TO-263 ….....…….....………...………..60°C/W
SOT-223 …………………..…………..155°C/W
TO-252
..................................…………................. - 65°C ~ 150°C
Lead temperature (soldering) 10 sec. .......................………............………...….......260°C
……………………………..100°C/W
Storage temperature range
8/16/2006 Rev.3.01
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SS6117AG
ELECTRICAL CHARACTERISTICS
(VIN=5V, TJ=25°C, Io=10mA, unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX. UNIT
TJ=25°C
1.238
1.25
1.262
0°C£TJ£125°C
2.65V£VIN£7V
Reference voltage
V
1.225
1.25
1.275
10mA£I £1A
o
SS6117A-18G, VIN=3.3V
SS6117A-25G, VIN=5V
SS6117A-28G, VIN=5V
SS6117A-33G, VIN=5V
SS6117A-50G, VIN=7V
SS6117AG
1.78
2.47
2.82
3.26
4.95
1.80
2.50
2.85
3.30
5.00
1.82
2.53
2.88
3.33
Output voltage
V
5.05
0°C£TJ£125°C
VOUT
0.98V
OUT
1.02V
OUT
2.65V£VIN£7V
10mA£IO£1A
2.65£VIN£7V, TJ=25°C
0°C£TJ£125°C
0.015
0.035
0.1
0.2
0.2
0.3
0.4
Line regulation
Load regulation
%VOUT
%VOUT
TJ=25°C, IO=10mA ~1A
0°C£TJ£125°C
DVOUT, DVREF=1%, IO=1A
0°C£TJ£125°C
0°C£TJ£125°C
2.65£VIN£7V
0.2
Dropout voltage
Current limit
1.3
1.5
V
A
1
Adjustable pin current (IADJ
)
10mA£IO£1A
55
120
5
mA
0°C£TJ£125°C
2.65£VIN£7V
Adjustable pin current change
(DIADJ
10mA£IO£1A
0.2
0.5
mA
)
0°C£TJ£125°C
IO=0.5A
% VOUT
Temperature stability
0°C£TJ£125°C
0°C£TJ£125°C
0°C£TJ£125°C
5
10
10
14
mA
mA
Minimum load current (Adj.)
Quiescent current (fixed outputs)
10Hz£f£10KHz
0.003
%VOUT
RMS output noise (% of VOUT
Ripple rejection ratio
)
120Hz input ripple
60
72
dB
COUT=25mF
8/16/2006 Rev.3.01
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SS6117AG
TYPICAL PERFORMANCE CHARACTERISTICS
0.1
50
0
0.05
0
-0.05
--50
VIN=5V
IN=1mF
COUT=10 F (Tantalum)
COUT=10mF (Tantalum)
OUT=3.3V
-0.1
--100
C
V
m
V
OUT=3.3V
7.0
6.0
0.4A
0.1A
0
10
20
30
40
50
0
40
80
120
160
200
m
m
Time ( S)
Time ( S)
Fig. 1 Load Transient Response
Fig. 2 Line Transient Response
1.26
1.24
1.22
1.20
1.18
1.16
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0
1
2
3
4
5
0
200
400
600
800
1000
Output Current (mA)
Fig. 3 Dropout Voltage (VOUT=3.3V)
Differential Voltage (V)
Fig. 4 Minimum Operating Current
5
4
3
2
1
0
T =125°C
J
T =25°C
J
T =0°C
J
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
Current Amp.
+
GM
-
+
VREF
1.25V
Thermal
Limit
Current
Limit
55 A
m
VOUT
For fixed output voltage
device
GND
ADJ
PIN DESCRIPTIONS
ADJ
-
Providing VREF=1.25V (typ.) for adjustable VOUT. VREF=VOUT-VADJ and IADJ=55mA (typ.)
(GND PIN- Power ground.)
VOUT -
VIN
Adjustable output voltage.
Power input.
-
8/16/2006 Rev.3.01
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SS6117AG
PHYSICAL DIMENSIONS (unit: mm)
SOT-223
D
S
Y
M
B
O
L
SOT-223
b2
MILLIMETERS
MIN.
MAX.
A
1.80
A1
A2
b
0.02
1.55
0.66
2.90
0.10
1.65
0.84
3.10
b2
c
0.23
6.30
0.33
6.70
A
A
D
SEE VIEW B
b
e
E
6.70
3.30
7.30
3.70
e1
E1
e
2.30 BSC
4.60 BSC
WITH PLATING
e1
L
0.90
0°
BASE METAL
8°
θ
SECTION A-A
GAUGE PLANE
SEATING PLANE
L
VIEW B
TO-263-3
A
S
Y
M
B
O
L
TO-263-3
E
c2
MILLIMETERS
MIN.
MAX.
4.83
A
4.06
A1
b
0.00
0.51
1.14
0.38
0.25
0.99
1.78
0.74
b2
c
c2
D
1.14
8.38
1.65
9.65
A
A
b2
e
E
e
9.65
10.67
SEE VIEW B
b
2.54 BSC
0.25 BSC
WITH PLATING
H
14.61
15.88
L
1.78
--
2.79
1.68
1.78
BASE METAL
SECTION A-A
L1
L2
L3
θ
--
GAUGE PLANE
SEATING PLANE
0°
8°
L
VIEW B
8/16/2006 Rev.3.01
www.SiliconStandard.com
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SS6117AG
PHYSICAL DIMENSIONS (unit: mm) (cont.)
A
S
Y
M
B
O
L
TO-220
MILLIMETERS
E
A1
TO-220
MIN.
3.56
MAX.
.82
A
4
A1
A2
b
0.51
2.04
0.38
1.15
0.35
14.23
8.38
1.39
2.92
1.01
1.77
0.61
16.51
9.02
b
b2
c
WITH PLATING
BASE METAL
D
SECTION A-A
D1
E
e
9.66
10.66
2.54 BSC
5.85
6.85
H1
L
A
e
A
12.70
--
14.73
6.35
4.08
3.42
L1
P
b2
A2
3.54
2.54
Q
E
b3
A
TO-252-3
S
Y
M
B
O
L
TO-252-3
c2
MILLIMETERS
MIN.
2.19
MAX.
2.38
A
A1
b
0.00
0.64
4.95
0.46
0.13
0.89
5.46
0.61
b3
c
c2
D
0.46
5.33
0.89
6.22
A
A
e
E
e
6.35
6.73
SEE VIEW B
b
2.28 BSC
H
9.40
1.40
10.41
1.78
WITH PLATING
L
L1
2.67 REF
0.51 BSC
BASE METAL
L2
L3
L4
SECTION A-A
0.89
--
2.03
1.02
GAUGE PLANE
SEATING PLANE
0°
8°
θ
L
L1
VIEW B
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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.
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