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SC1633-5CS PDF даташит

Спецификация SC1633-5CS изготовлена ​​​​«Semtech Corporation» и имеет функцию, называемую «LOW VOLTAGE STEP-UP DC-DC CONVERTER».

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Номер произв SC1633-5CS
Описание LOW VOLTAGE STEP-UP DC-DC CONVERTER
Производители Semtech Corporation
логотип Semtech Corporation логотип 

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SC1633-5CS Даташит, Описание, Даташиты
LOW VOLTAGE STEP-UP
DC-DC CONVERTER
SC1633
January 29, 1998
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The SC1633 is a high efficiency step up DC-DC
converter. Only four external components are required
to deliver a fixed voltage of 3V, 3.3V, or 5V. Efficiency
beyond 83% can be easily achieved at 70mA load with
2.2V to 3V input voltages.
A logic-controlled shutdown mode is provided for
power saving. Switch current limit can be programmed
with a resistor. The low battery detector can be
configured as a linear regulator or a burst mode
controller providing extremely low supply current
operation.
A switching rate of 120kHz reduces the inductor size -
inductors of 47µH to 150µH inductance are
recommended for most applications.
FEATURES
High efficiency 87%
Power-saving shutdown mode (7µA typical)
Internal 0.8A switch
120kHz switching rate
Adjustable switch current limit
On-chip low battery detector
APPLICATIONS
Pocket organizers
Electronic dictionaries
Cameras
Pagers
Bar code scanners
LCD displays
Battery backup supplies
Portable instruments
BLOCK DIAGRAM
PIN CONFIGURATION
ORDERING INFORMATION
DEVICE(1)
VOLTAGE
SC1633CS
SC1633-3CS
SC1633-5CS
3.3V
3.0V
5.0V
PACKAGE
SO-8
Note:
(1) Add suffix ‘TR’ for tape and reel.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol Maximum Units
Supply Voltage
Operating
Temperature Range
VIN
TA
7.0
0 to 70
V
°C
Storage
Temperature Range
TSTG
-65 to 125 °C
TYPICAL APPLICATION CIRCUIT
© 1997 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320









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SC1633-5CS Даташит, Описание, Даташиты
LOW VOLTAGE STEP-UP
DC-DC CONVERTER
January 29, 1998
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, TA = 25°C, VIN = 3.0V
Parameter
Input Voltage
VIN
Output Voltage
SC1633
SC1633-3
SC1633-5
Switch Off Current
No Load Current
SC1633/SC1633-3
SC1633-5
Shutdown Mode Current
Shutdown Recovery Time
Efficiency
SC1633/SC1633-3
SC1633-5
VIN=2.5V
Line Regulation
SC1633
SC1633-3
SC1633-5
Load Regulation
SC1633/SC1633-3
SC1633-5
VIN=2.0 - 3.3V
VIN=2.0 - 3.0V
VIN=2.2 - 4.5V
Oscillator Frequency
LBI Pin Trip Point
LBO “On Resistance”
SW “On Resistance”
SC1633/SC1633-3
SC1633-5
VIN = 2V
SW Off Leakage
Input Pin Bias Current
Output Pin Leakage
IL
IL = 70mA
IL=70mA
IL=70mA
IL=40mA
IL=1mA - 70mA
Min
1.8
3.16
2.88
4.80
90
1.17
SC1633
Typ
3.30
3.00
5.00
105
160
250
7
1.8
87
86
0.6
0.6
0.5
0.6
0.5
120
1.22
45
1.75
1.25
Max Units
7.0 V
3.44 V
3.12
5.20
140 µA
µA
15 µA
msec
%
%VOUT
150
1.27
%VOUT
kHz
V
1 µA
10 nA/Pin
10 nA/Pin
© 1997 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320









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SC1633-5CS Даташит, Описание, Даташиты
LOW VOLTAGE STEP-UP
DC-DC CONVERTER
January 29, 1998
TYPICAL PERFORMANCE CHARACTERISTICS
SC1633
© 1997 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320










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Номер в каталогеОписаниеПроизводители
SC1633-5CSLOW VOLTAGE STEP-UP DC-DC CONVERTERSemtech Corporation
Semtech Corporation

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