Part Name
         Description
ADP2503

 600 mA/1000 mA, 2.5 MHz Buck-Boost DC-to-DC Converter ( 16 Page)


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ADP2503/ADP2504
Preliminary Technical Data
TYPICAL PERFORMANCE CHARACTERISTICS
100
100
90
90
80
80
70
70
0.01
VIN = 5.5V
VIN = 4.2V
VIN = 3.6V
VIN = 2.3V
30
VIN = 5.5V
VIN = 4.2V
VIN = 3.6V
VIN = 2.3V
60
50
40
20
10
0
0
0.1
1
0.001
0.01
0.1
1
0.001
IOUT (A)
IOUT (A)
Figure 3. Efficiency vs. Output Current, PWM Mode (VOUT = 5.0 V)
Figure 6. Efficiency vs. Output Current, PSM and PWM Mode (VOUT = 3.3 V)
100
VIN = 5.5V
VIN = 4.2V
VIN = 3.6V
VIN = 2.3V
100
90
90
80
80
70
70
VIN = 5.5V
VIN = 4.2V
VIN = 3.6V
VIN = 2.3V
60
50
40
30
20
10
0
0
0.01
0.1
1
0.01
0.1
1
0.001
0.001
IOUT (A)
IOUT (A)
Figure 4. Efficiency vs. Output Current, PSM and PWM Mode (VOUT = 5.0 V)
Figure 7. Efficiency vs. Output Current, PWM Mode (VOUT = 2.8 V)
100
VIN = 5.5V
VIN = 4.2V
VIN = 3.6V
VIN = 2.3V
100
90
90
80
80
70
70
VIN = 5.5V
VIN = 4.2V
VIN = 3.6V
VIN = 2.3V
60
50
40
30
20
10
0
0.01
0.1
1
0.01
0.1
1
0.001
0.001
IOUT (A)
IOUT (A)
Figure 5. Efficiency vs. Output Current, PWM Mode (VOUT = 3.3 V)
Figure 8. Efficiency vs. Output Current, PSM and PWM Mode (VOUT = 2.8 V)
Rev. PrB | Page 6 of 16
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