ADP2503-2.8-EVALZ Analog Devices Inc, ADP2503-2.8-EVALZ Datasheet - Page 5
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ADP2503-2.8-EVALZ
Manufacturer Part Number
ADP2503-2.8-EVALZ
Description
BOARD EVALUATION ADP2503 2.8V
Manufacturer
Analog Devices Inc
Specifications of ADP2503-2.8-EVALZ
Main Purpose
DC/DC, Step Up or Down
Outputs And Type
1, Non-Isolated
Power - Output
1.68W
Voltage - Output
2.8V
Current - Output
600mA
Voltage - Input
2.5 ~ 5.5V
Regulator Topology
Buck-Boost
Frequency - Switching
2.5MHz
Board Type
Fully Populated
Utilized Ic / Part
ADP2503
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
TYPICAL PERFORMANCE CHARACTERISTICS
3
4
2
1
3
4
2
1
100
90
80
70
60
50
40
30
20
10
CH1
CH3
0.001
CH1
CH3
0
Figure 2. Efficiency vs. Load, V
Figure 4. Buck Boost, V
100mV
5.00V
Figure 3. Buck Boost, V
20.0mV
5.00V
B
B
W
B
W
B
W
W
0.01
CH2 1.00A Ω
CH4
CH2 250mA Ω
CH4
SW2
SW1
V
SW2
SW1
V
5.00V
5.00V
I
OUT
SW
I
OUT
SW
B
IN
IN
B
I
W
OUT
= 3.0 V, V
= 3.0 V, V
W
0.1
OUT
M 4.00µs
M 400ns
(A)
T
T
= 3.3 V, PWM and PSM
15.20%
50.00%
OUT
OUT
V
V
V
V
IN
OUT
IN
OUT
= 3.3 V, PWM
= 3.3 V, PSM
= 3.0V
= 3.0V
A CH2
= 3.3V
A CH4
= 3.3V
1
V
V
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
IN
IN
= 5.5V
= 4.2V
= 3.6V
= 2.3V
= 5.5V
= 4.2V
= 3.6V
= 2.3V
820mA
2.40V
10
Rev. A | Page 5 of 8
Figure 7. Mode Change by Load Transients, Load Fall (V
4
2
1
3
4
2
1
3
4
2
1
CH1
CH1
CH3
CH1
CH3
Figure 5. Boost Operation, V
Figure 6. Buck Operation, V
V
V
100mV
20.0mV
5.00V
50.0mV
5.00V
IN
OUT
= 3.6V
= 3.3V
B
B
B
W
W
B
B
W
W
W
CH2 500mA Ω
CH4
CH2 250mA Ω
CH4
CH2 250mA Ω
CH4
SW1
I
V
EVAL-ADP2503/ADP2504
V
V
OUT
2.00V
SW2
SW1
SW2
SW1
5.00V
5.00V
OUT
I
I
OUT
OUT
SW
SW
B
B
B
W
W
W
IN
IN
= 4.0 V, V
= 3.0 V, V
M100µs
M 400ns
M 400ns
T
T
T
45.40%
50.80%
50.00%
V
V
V
V
OUT
IN
OUT
IN
OUT
OUT
= 3.0V
= 4.0V
= 3.3 V, PWM
A CH2
= 3.3 V, PWM
A CH4
A CH3
= 3.3V
= 3.3V
OUT
410mA
2.40V
2.40V
= 3.3 V)