SC1117CSTTR [SEMTECH]
Adjustable Positive LDO Regulator, 1.3V Min, 13.5V Max, 13V Dropout, BIPolar, PDSO4, SOT-223, 4 PIN;
| 型号： | SC1117CSTTR |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | Adjustable Positive LDO Regulator, 1.3V Min, 13.5V Max, 13V Dropout, BIPolar, PDSO4, SOT-223, 4 PIN 光电二极管 输出元件 调节器 |
| 文件： | 总6页 (文件大小：168K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SC1117
0.8 Amp Positive
Voltage Regulator
POWER MANAGEMENT
Description
Features
The SC1117 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at 800mA.
u 15V maximum input voltage
u Low dropout performance: 1.3V max.
u Full current rating over line and temperature
u Fast transient response
u +2% total output regulation over line, load and
temperature
u Adjust pin current max 120µA over temperature
u Fixed/adjustable output voltages available
u Line regulation 0.2% max.
Additionally, the SC1117 series provides excellent
regulation over variations in line, load and temperature.
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device.
u Load regulation 0.4% max.
u SOT-223 and TO-263 packages
The SC1117 series of three terminal regulators offer fixed
and adjustable voltage options available in both space
saving SOT-223 and TO-263 packages.
Applications
u Low voltage microcontroller supplies
u Switching power supply post-regulation
Typical Application Circuit
Fixed Voltage Regulator
U1
SC1117-3.3
3
2
TAB
VIN > 4.75V
VOUT = 3.3V
IN
OUT
+
+
C1
10uF Tant.
C2
GND
1
10uF Tant. Min.
Adjustable Voltage Regulator
U1
SC1117
OUT
3
2
TAB
VIN > 4.75V
VOUT = 3.45V
IN
+
+
C1
10uF Tant.
R1
C2
ADJ
1
133 Ohm, 1%
10uF Tant. Min
R2
232 Ohm, 1%
R2
R1
VOUT = VREF • 1+
+ IADJ • R2
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
Revision 1, December 2000
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SC1117
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Symbol
Maximum
Units
Input Voltage
VIN
PD
15
V
Power Dissipation
Internally Limited
W
Thermal Resistance Junction to Case
SOT-223
TO-263
15
3
°C/W
°C/W
qJC
Thermal Resistance Junction to Ambient
SOT-223
TO-263
150
60
qJA
Operating Junction Temperature Range
Storage Temperature Range
TJ
0 to 125
-65 to 150
300
°C
°C
°C
TSTG
TLEAD
Lead Temperature (Soldering) 10 Sec.
Electrical Characteristics
Unless otherwise specified: Adj. VIN = 2.65V to 15V and Adj. IO = 10mA to 800mA; Fixed VIN = (VOUT + 1.5) to 15V and Fixed IO = 0mA to 800mA.
(5)
Parameter
Symbol
VIN
IO
TJ
Min
Typ
Max
Units
(1)
Output Voltage
VO
VO + 2V
(VO + 1.5V) to 12V
5V
10mA
25°C
O.T.
25°C
O.T.
O.T.
O.T.
O.T.
O.T.
O.T.
0.99lVOl
0.98lVOl
1.238
VO
VO
1.01lVOl
1.02lVOl
1.262
1.270
0.2
V
Fixed Voltage Version
(1)
Reference Voltage
VREF
10mA
10mA
1.250
1.250
0.035
0.2
V
Adj Voltage Version
Line Regulation (1)
Load Regulation (1)
Dropout Voltage(2)
Current Limit
1.225
REG(LINE)
%
%
V
REG(LOAD)
6.5V
15V
0.4
VD
ICL
IQ
800mA
1.2
1.3
0.8
A
Quiescent Current
10
14
mA
Fixed Voltage Version
Temperature Coefficient
TC
O.T.
0.005
%/°C
ã 2000 Semtech Corp.
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SC1117
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise specified: Adj. VIN = 2.65V to 15V and Adj. IO = 10mA to 800mA; Fixed VIN = (VOUT + 1.5) to 15V and Fixed IO = 0mA to 800mA.
(5)
Parameter
Symbol
IADJ
VIN
IO
TJ
Min
Typ
Max
Units
Adjust Pin Current
O.T.
O.T.
55
120
5
µA
µA
Adjust Pin Current
Change
0.2
DIADJ
Temperature Stability
TS
IO
0.5A
0.8A
O.T.
O.T.
0.5
5
%
Minimum Load Current
Adj Voltage Version
VO+ 1.5V
VO+ 1.5V
10
mA
RMS Output Noise(3)
VN
RA
25°C
O.T.
0.003
72
%VO
dB
Ripple Rejection Ratio(4)
60
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) DVOUT, DVREF = 1%.
(3) Bandwidth of 10 Hz to 10kHz.
(4) 120Hz input ripple (CADJ for ADJ = 25µF).
(5) Over Temp. (O.T.) = over specified operating junction temperature range.
ã 2000 Semtech Corp.
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SC1117
POWER MANAGEMENT
Pin Configuration
Ordering Information
(1)(2)
Device
Package
SC1117CM-X.X.TR
SC1117CST-X.X.TR
Notes:
TO-263
SOT-223
(1) Where X.X denotes voltage options. Available
voltages are: 2.85V, 3.3V and 5V. Leave blank (e.g.
SC1117CM.TR) for adjustable version (1.3 to 13.5V).
Contact factory for additional voltage options.
SOT-223
TO-263
(2) Only available in tape and reel packaging. A reel
contains 800 (TO-263) or 2500 (SOT-223) devices.
Block Diagram
ã 2000 Semtech Corp.
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SC1117
POWER MANAGEMENT
Outline Drawing - TO-263
Land Pattern - TO-263
ã 2000 Semtech Corp.
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SC1117
POWER MANAGEMENT
Outline Drawing - SOT-223
Land Pattern - SOT-223
Contact Information
Semtech Corporation
Power Management Products Division
652 Mitchell Rd., Newbury Park, CA 91320
Phone: (805)498-2111 FAX (805)498-3804
ã 2000 Semtech Corp.
6
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