ADP5020CP-EVALZ Analog Devices Inc, ADP5020CP-EVALZ Datasheet - Page 12

• Manufacturer Part Number: ADP5020CP-EVALZ
• Description: EB PMU For Digital Imaging Module
• Manufacturer: Analog Devices Inc

Specifications of ADP5020CP-EVALZ

• Design Resources: Powering AD9272 with ADP5020 Switching Regulator PMU for Increased Efficiency (CN0135)
• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 3, Non-Isolated
• Voltage - Output: 3.3V, 1.2V, 1.8V
• Current - Output: 600mA, 250mA, 150mA
• Voltage - Input: 2.4 ~ 5.5 V
• Regulator Topology: Buck
• Frequency - Switching: 3MHz
• Board Type: Fully Populated
• Utilized Ic / Part: ADP5020
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADP5020
V
IN
= 4.5 V, V
BUCK 1
LDO
SW1
Figure 19. Buck 1 Switching Node Voltage and
OUT1
= 2.8 V, V
Figure 18. LDO Startup
Output Ripple Voltage
OUT2
BUCK 1 OUTPUT = 20mV/DIV
SW1 = 5V/DIV
TIME = 100ns/DIV
= V
LDO OUTPUT = 1V/DIV
TIME = 50µs/DIV
OUT3
= 1.8 V, I
OUT
= 100 mA, C
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4
= C
1
= 10 μF, C
2
ENABLE
BUCK 2
BUCK 1
BUCK 2
=4.7 μF, C
SW2
Figure 21. Three Regulators Turned Off by Sequencer
LDO
Figure 20. Buck 2 Switching Node Voltage and
3
= 1 μF, T
Output Ripple Voltage
J
BUCK 2 OUTPUT = 20mV/DIV
SW2 = 5V/DIV
TIME = 100ns/DIV
= 25°C, unless otherwise noted.
BUCK 1 OUTPUT = 2V/DIV
BUCK 2 OUTPUT = 1V/DIV
LDO OUTPUT = 1V/DIV
ENABLE OUTPUT = 2V/DIV
TIME = 5ms/DIV