GS1117CST-5/2F-E3 [VISHAY]
IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PDSO4, SOT-223, 4 PIN, Fixed Positive Single Output LDO Regulator;
| 型号： | GS1117CST-5/2F-E3 |
| 厂家： | 
VISHAY |
| 描述： | IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PDSO4, SOT-223, 4 PIN, Fixed Positive Single Output LDO Regulator 光电二极管 输出元件 调节器 |
| 文件： | 总6页 (文件大小：155K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
GS1117
Vishay Siliconix
1A Low Dropout
Positive Adjustable Regulator
SOT-223
TO-252
(DPak)
TO-220AB
TO-263AB
(D2Pak)
1
2
3
2
3
3
1
2
1
3
2
1
GS1117CST
GS1117CE
GS1117CT
GS1117CM
Pin Definition
Description
1. Adjust/Gnd.
2. Vout (tab)
3. Vin
The GS1117 is a low dropout three terminal regulator with
1A output current capability. The output voltage is
adjustable with the use of a resistor divider. For fixed out-
put voltage versions, the output voltage is internally set at
1.8V, 2.5V, 2.85V, 3.3V or 5V. Dropout is guaranteed at a
maximum of 1.3V at maximum output current. Its low
dropout voltage and fast transient response make it ideal
for low voltage microprocessor applications. Internal thermal
limiting provides protection against any overload condition
that would create excessive junction temperatures.
Features
• Dropout Voltage 1.1V at 1A Output Current
• Fast Transient Response
• Line Regulation typically at 0.04%
• Load Regulation typically at 0.1%
• Internal thermal limiting
Applications
• SCSI-2 Active Terminator
• Post Regulator for Switching Supply
• Battery Chargers
• Adjustable Output Voltage or Fixed 1.8V, 2.5V, 2.85V,
3.3V, 5V
• Standard 3-Pin Power Packages
• Constant-Current Regulators
• PC Add-On Card
Functional Block Diagram
VIN
Mechanical Data
Case: TO-220AB, TO-263AB (D2PAK),
TO-252 (DPAK) and SOT-223
Current
Amp
+
GM
--
+
VREF
1.25V
High temperature soldering guaranteed:
260°C/10 seconds at terminals
Thermal
Limit
Current
Limit
50µA
VOUT
Case outlines are on the back page
For
fixed
voltage
device
ADJ
GND
Document Number 74802
04-Feb-05
www.vishay.com
1
GS1117
Vishay Siliconix
Maximum Ratings and Thermal Characteristics (TA = 25 °C unless otherwise noted)
Parameter
Symbol
Value
Unit
Vin Pin to ADJ/GND Pin
Thermal Resistance – Junction to Case
Vin
7
V
TO-220AB
TO-252
3.0
8.0
RθJC
°C/W
TO-263AB
SOT-223
3.0
15.0
Operating Junction Temperature Range
Storage Temperature Range
TJ
–20 to +125
–65 to 150
°C
Tstg
°C
Electrical Characteristics TJ = 25 °C, Io = 10 mA – 1 A, VIN = 4.75V – 7V, unless otherwise noted.
Test Conditions
Test Limits
Parameter
Symbol
VO
Unit
VIN
IO
TJ
Min
Typ
Max
Output Voltage(1)
Fixed Voltage
5 V
10 mA
0.99 VN
VN
1.01 VN
1.03 VN
1.262
1.275
0.3
0 °C ≤ T ≤ 125 °C 0.97 VN
J
V
Reference Voltage(1)
Adj Voltage
5 V
10 mA
10 mA
1.238
VREF
1.250
0 °C ≤ TJ ≤ 125 °C 1.225
0.03
0.035
0.1
Line Regulation(1)
Load Regulation(1)
REG(LINE)
REG(LOAD)
0 °C ≤ T ≤ 125 °C
0.35
0.3
J
%/VO
5 V
0 °C ≤ T ≤ 125 °C
0.2
0.5
J
1A
1.15
1.05
1.3
Dropout Voltage
∆Vout = 1%
VDROP
500mA 0 °C ≤ T ≤ 125 °C
1.15
1.1
J
V
100mA
1.0
1.1
Current Limit
ICL
IQ
5 V
5 V
1.0
A
Quiescent Current
Fixed Model
12
14
mA
Temperature Coefficient
TC
5 V
0.5 A 0°C ≤ T ≤ 125 °C
0.005
%VO/°C
J
Adjust Pin Current
IADJ
55
120
5
µA
Adjust Pin Current Change
∆IADJ
0.2
Minimum Load Current
Adjustable Version
IO
5 V
5
14
mA
RMS Output Noise(2)
Ripple Rejection Ratio(3)
VN
RR
5 V
5 V
0.003
72
%VO
dB
10 mA 0°C ≤ T ≤ 125 °C
60
J
Notes:
(1) Low duty cycle pulse testing with Kelvin connections required..
(2) Bandwidth of 10 HZ to 10 KHZ.
(3) 120 HZ input ripple (CADJ for ADJ) = 25 µF.
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2
Document Number 74802
04-Feb-05
GS1117
Vishay Siliconix
Typical Application Circuit
VIN
5V
3
2
VIN
5V
VOUT
3.3V
R1
3
2
VOUT
GS1117
ADJ
GS1117-xx
1
1
125Ω
1%
VREF
+
C2
10µF
+
+
C2
10µF
C1
10µF
+
C1
10µF
R2
205Ω
1%
Fixed Voltage Regulator
Adjustable Voltage Regulator
Notes:
V
V
REF = VOUT – VADJ = 1.25V (typ.)
OUT = VREF x (1+R2/R1) + IADJ x R2
IADJ = 50µA (typ.)
(1) C1 needed if device is far away from filter capacitors
(2) C2 required for stability
Document Number 74802
04-Feb-05
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3
GS1117
Vishay Siliconix
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 2 – Dropout Voltage v.s.
Temperature
Fig. 1 – Dropout Voltage
1.3
1.2
1.1
1.0
0.9
0.8
1.4
IOUT = 1 A
TJ = 0 °C
1.2
1.0
TJ = 50 °C
TJ = 125 °C
0.8
0.6
0.4
0.2
0.0
0
200
400
600
800
1000
0
20
40
60
80
100
120
140
Output Current (mA)
Ambient Temperature (°C)
Fig. 3 – Minimum Load Current
(Adjustable Version)
Fig. 4 – Adjust Pin Current
10
8
100
80
TJ = 125°C
6
60
40
20
0
TJ = 25°C
TJ = 0°C
4
2
0
1
2
3
4
5
6
--50 --25
0
25
50
75
100
125
Temperature (°C)
Input / Output Differential Voltage (V)
Fig. 6 – Ripple Rejection
(with C 25µF)
Fig. 5 – Temperature Stability
adj
80
1.2
0.9
0.6
0.3
IOUT = 0.5A
COUT = 25µF
70
60
50
COUT = 10µF
COUT = 25µF
0.0
40
30
20
--0.3
--0.6
--0.9
--1.2
COUT = 10µF
10
100
1K
10K
100K
1M
--20
0
20
40
60
80 100 120 140
Frequency (Hz)
Temperature (°C)
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4
Document Number 74802
04-Feb-05
GS1117
Vishay Siliconix
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 7 – Load Transient Response
Fig. 8 – Line Transient Response
0.1
0.05
0
50
0
VIN = 5V
CIN = 1µF
COUT = 10µF (Tantalum)
VOUT = 3.3V
--0.05
--0.1
--50
--100
COUT = 10µF (Tantalum)
VOUT = 3.3V
0.4A
0.1A
7.0
6.0
0
40
80
120
160
200
0
10
20
30
40
50
Time (µs)
Time (µs)
Ordering Information
Part Number
Output Voltage (V)
Package
GS1117CST/2F-E3
GS1117CST-18/2F-E3
GS1117CST-25/2F-E3
GS1117CST-28/2F-E3
GS1117CST-33/2F-E3
GS1117CST-5/2F-E3
GS1117CE/27H
Adjustable
1.8
2.5
SOT-223
2.85
3.3
5.0
Adjustable
1.8
GS1117CE-1.8/27H
GS1117CE-2.5/27H
GS1117CE-2.85/27H
GS1117CE-3.3/27H
GS1117CE-5/27H
2.5
TO-252
DPAK
2.85
3.3
5.0
GS1117CM/31F-E3
GS1117CM-18/31F-E3
GS1117CM-25/31F-E3
GS1117CM-28/31F-E3
GS1117CM-33/31F-E3
GS1117CM-5/31F-E3
GS1117CT/45H
Adjustable
1.8
2.5
TO-263
DPAK
2.85
3.3
5.0
Adjustable
1.8
GS1117CT-1.8/45H
GS1117CT-2.5/45H
GS1117CT-2.85/45H
GS1117CT-3.3/45H
GS1117CT-5/45H
2.5
TO-220
2.85
3.3
5.0
Document Number 74802
04-Feb-05
www.vishay.com
5
GS1117
Vishay Siliconix
Case Outlines
SOT-223
TO-252 (DPAK)
6.73
6.35
2.38
2.19
6.80
6.30
3.15
2.90
0.58
0.46
5.46
5.21
Top View
7.30
6.70
3.70
3.30
5.59
5.33
10.42
9.40
2
3
1
1
2
3
0.80
0.60
0.88
0.64
0.51 (min.)
1.80
Max.
2.28 (TYP.)
0.35
0.24
0.91
Min.
1.27
1.02
0.12
0.02
2.30
Typ.
13° ±3°
Dimensions in millimeters
TO-263-3L
TO-220
4.83
4.06
4.82
3.56
1.39
0.51
10.29
9.65
4.08
3.54
10.66
9.66
1.40
1.12
3.42
2.54
6.85
5.85
1.40
(max.)
9.65
8.28
15.88
14.60
16.51
14.23
2.54
(typ.)
0.74
(max.)
0.99
0.51
6.35 Max.
1.39
1.15
0°~ 8°
14.73
12.70
(with plating)
1.14
0.25
(typ.)
2.79
2.29
1.77
1.15
0.31
2.79
(max.)
2.92
2.04
1.01
(with plating)
0.38
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Document Number 74802
04-Feb-05
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