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SC600
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Freq. = 262kHz or 650kHz (2) ; Versions A & C
Freq. = 262kHz or 650kHz (2) ; Versions B & D
60
120
Output Current
I OUT
Freq. = 8kHz; Versions A & C
Freq. = 8kHz; Versions B & D
5
10
mA
Freq. = 32kHz; Versions A & C
Freq. = 32kHz; Versions B & D
20
40
Enable = 1, CD4 = 0, CX8 = 0
-15%
32.768
+15%
Pump Frequency
f PUMP
Enable = 1, CD4 = 1, CX8 = 0
Enable = 1, CD4 = 0, CX8 = 1
-15%
-13%
8.192
262.14
+15%
+15%
kHz
Enable = 1, CD4 = 1, CX8 = 1
-20%
650
+20%
Frequency Mode
Transition Time
T FMT
Transition time from one frequency
mode to any other frequency mode (3)
1
Period
Short Circuit Current
I SC
V OUT = 0V, I OUT = I IN
180
600
mA
Input High Threshold
Input Low Threshold
Input High Current
Input Low Current
V IH
V IL
I IH
I IL
All Input Pins (Enable, CD4, CX8)
All Input Pins (Enable, CD4, CX8)
All Input Pins (Enable, CD4, CX8)
All Input Pins (Enable, CD4, CX8)
1.3
0.4
10
10
V
V
μ A
μ A
1.5x to 2x mode, Versions A & B
3.43
3.50
3.56
V
Mode Transition
Voltage
Power Ef ? ciency
from Battery to
Regulated Charge
Pump Output@262kHz
V IN
V IN
η
2x to 1.5x mode, Versions A & B
Hysteresis
1.5x to 2x mode, Versions C & D
2x to 1.5x mode, Versions C & D
Hysteresis
V IN = 3.60V, V OUT = 5.0V, I OUT = 60mA
V IN = 3.60V, V OUT = 4.5V, I OUT = 120mA
3.48
30
3.23
3.33
40
3.58
80
3.30
3.40
100
92
83
3.64
180
3.36
3.46
180
V
mV
V
V
mV
%
%
Output Ripple
Voltage
V PP
Freq = 262kHz, I OUT = 60mA (2), (3)
25
45
mV
Notes:
1) Version C has an extended input voltage range of operation at V IN = 2.60V to 5.5V.
2) 650kHz allows the use of a smaller bucket capacitor.
3) Guaranteed by design.
4) Peak-to-peak output ripple voltage with C OUT = C BUCKET =1 μ F and X5R dielectric.
? 2006 Semtech Corp.
3
www.semtech.com
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