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SS6550 Datasheet(PDF) 5 Page - Silicon Standard Corp.

Part # SS6550
Description  Low-Noise Synchronous PWM Step-Down DC/DC Converter
PDF  13 Pages
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Manufacturer  SSC [Silicon Standard Corp.]
Direct Link  http://www.siliconstandard.com
Logo SSC - Silicon Standard Corp.

SS6550 Datasheet(HTML) 5 Page - Silicon Standard Corp.

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SS6550
n TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Load Current (mA)
Fig. 7
Load Current vs. Efficiency
(W/ or W/O Schottky Diode)
10
100
1000
60
70
80
90
100
W/ Schottky Diode
W/O Schottky Diode
VIN=3.6V
VOUT=1.8V
Temperature (
°C)
-50
-25
0
25
50
75
100
125
0.725
0.730
0.735
0.740
0.745
0.750
0.755
0.760
0.765
VIN=3.6V
Fig. 8
Reference Voltage vs. Temperature
Fig. 9
Oscillator Frequency vs. Temperature
Temperature (
°C)
-40
-20
0
20
40
60
80
100
120
450
460
470
480
490
500
510
520
530
540
550
VIN=3.6V
Fig. 10
Frequency vs. Input Voltage
Supply Voltage (V)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
450
460
470
480
490
500
510
520
530
540
550
Fig. 11
RDSON vs. Supply Voltage
Supply Voltage (V)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
0.26
0.28
0.30
0.32
0.34
0.36
0.38
0.40
0.42
0.44
Main Switch
Synchronous Switch
Fig. 12
Output Voltage vs. Load Current
Load Current (mA)
1
10
100
1000
1.72
1.74
1.76
1.78
1.80
1.82
VIN=3.6V
Rev.2.01 6/06/2003



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