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www.semtech.com
SC1117
0.8 Amp Positive
Voltage Regulator
POWER MANAGEMENT
Revision 2, September 2002
15V maximum input voltage
Low dropout performance: 1.3V max.
Full current rating over line and temperature
Fast transient response
+2% total output regulation over line, load and
temperature
Adjust pin current max 120A over temperature
5V Fixed output voltage
Line regulation 0.2% max.
Load regulation 0.4% max.
SOT-223 and TO-263 packages
The SC1117 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at 800mA.
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.
The SC1117 series of three terminal regulators offer fixed
5V output voltage options available in both space sav-
ing SOT-223 and TO-263 packages.
Low voltage microcontroller supplies
Switching power supply post-regulation
Description
Features
Applications
Fixed Voltage Regulator
Typical Application Circuit
VOUT = 5V
VIN > 6.5V
+
C2
10uF Tant. Min.
+
C1
10uF Tant.
U1
SC1117-5.0
1
2
3
GND
OUT
IN
TAB
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
2
2002 Semtech Corp.
www.semtech.com
SC1117
POWER MANAGEMENT
N O T E S :
N O T E S :
N O T E S :
N O T E S :
N O T E S :
(1) Low duty cycle pulse testing with Kelvin connections required.
(2)
V
OUT
= 1%.
(3) Bandwidth of 10 Hz to 10kHz.
(4) 120Hz input ripple.
(5) Over Temp. (O.T.) = over specified operating junction temperature range.
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Unless otherwise specified: V
IN
= 6.5V to 15V and I
O
= 0mA to 800mA.
Absolute Maximum Ratings
Electrical Characteristics
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not implied.
5
2002 Semtech Corp.
www.semtech.com
SC1117
POWER MANAGEMENT
Outline Drawing - SOT-223
Land Pattern - SOT-223
Semtech Corporation
Power Management Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
Contact Information
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