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參數(shù)資料
| 型號(hào)： | SC1460CSK-5.0 |
| 廠商： | Semtech Corporation |
| 英文描述： | 5mA CAPLESSTM CHARGE PUMP |
| 中文描述： | 5mA的CAPLESSTM電荷泵 |
| 文件頁(yè)數(shù)： | 2/6頁(yè) |
| 文件大小： | 71K |
| 代理商： | SC1460CSK-5.0 |
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, C
IN
= 0.22uF, C
OUT
= 47nF, T
A
= 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
VO
I
O
= 0mA VIN = 2.5 V
SC1460CSK - 3.3, VIN = 2.5V
100
150
μA
Output Voltage
-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, C
OUT
= 47nF
50
mV
Output Current
I
O
η
4
5
mA
Efficiency
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
VIN
1
2
3
GND
VO
Cin
0.22uF
Cout
47nF
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