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SC1460 Datasheet(PDF) 2 Page - Semtech Corporation

Part # SC1460
Description  5mA CAPLESSTM CHARGE PUMP
PDF  6 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1460 Datasheet(HTML) 2 Page - Semtech Corporation

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SC1460
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
5mA CAPLESS
TM CHARGE PUMP
PRELIMINARY - July 6, 1999
2
ELECTRICAL CHARACTERISTICS
Unless specified: VIN = 3.3V (-5.0 parts), VIN = 2.5V (-3.3 parts), 0
≤ I
O ≤ 4mA, CIN = 0.22uF, COUT = 47nF, TA = 25°C. Values in bold apply
over full operating temperature range
Parameter
Symbol
Conditions
MIN
TYP
MAX
Units
Input Supply Voltage
VIN
2.25
3.63
V
Input Supply Current
I
IN
I
O = 0mA VIN = 2.5 V
100
150
µA
Output Voltage
VO
SC1460CSK - 3.3, VIN = 2.5V
-4
1.32 x VIN
4
%
SC1460CSK - 5.0, VIN = 3.3V
4
1.515 X VIN
4
%
Output Ripple (pk-pk)
V
R
I
O = 4mA, COUT = 47nF
50
mV
Output Current
I
O
45
mA
Efficiency
η
I
O = 4mA
50
56
%
Oscillator Frequency
OSC
SC1460CSK - 3.3, VIN = 2.5V
8
MHz
SC1460CSK - 5.0, VIN = 3.3V
8.75
Time to Regulation at
Turn-On
t
ON
Power Up with I
O = 4mA
100
µs
APPLICATION CIRCUIT
VIN
VO
U1 SC1460
1
2
3
GND
VO
VIN
Cin
0.22uF
Cout
47nF



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