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SC1202A fiches techniques PDF

Semtech Corporation - 600mA Low Dropout Positive Voltage Regulator

Numéro de référence SC1202A
Description 600mA Low Dropout Positive Voltage Regulator
Fabricant Semtech Corporation 
Logo Semtech Corporation 





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SC1202A fiche technique
SC1202 & SC1202A
600mA Low Dropout Positive
Voltage Regulator
POWER MANAGEMENT
Description
Features
The SC1202 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at full rated current.
Additionally, the SC1202 series provides excellent
regulation over variations due to 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 SC1202 series are three terminal
regulators available in the surface mount SOT-223
package.
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. 90µA over temperature
u Adjustable or fixed output voltages
u Line regulation 0.2% max.
u Load regulation 0.4% max.
u SOT-223 package
Applications
Typical Application Circuits
u Low voltage microcontrollers
u Microprocessor I/O supplies
u 5V to 3.3V conversion for memory, ASIC, custom
circuits, etc.
Fixed Voltage Regulator
VIN > 4.75V
U1
3
IN
SC1202-3.3
TAB 2
OUT
+ C1
10uF Tant.
GND
1
Adjustable Voltage Regulator
VIN > 4.75V
U1
3
IN
SC1202
TAB
2
OUT
+ C1
10uF Tant.
ADJ
1
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
VOUT = 3.3V
+ C2
10uF Tant.
VOUT = 3.45V
R1
133 Ohm, 1%
+ C2
10uF Tant.
R2
232 Ohm, 1%
VOUT
=
VREF
1 +
R2
R1

+
IADJ
R2
Revision 8/30/2000
1
www.semtech.com

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