ADP5020ACPZ-R7 Analog Devices Inc, ADP5020ACPZ-R7 Datasheet - Page 19

• Manufacturer Part Number: ADP5020ACPZ-R7
• Description: IC REG LDO DUAL BUCK 20LFCSP
• Manufacturer: Analog Devices Inc

Specifications of ADP5020ACPZ-R7

• Design Resources: Powering AD9272 with ADP5020 Switching Regulator PMU for Increased Efficiency (CN0135)
• Applications: Handheld/Mobile Devices
• Current - Supply: 10mA
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-LFCSP
• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 2
• No. Of Ldo Regulators: 1
• Digital Ic Case Style: LFCSP
• No. Of Pins: 20
• No. Of Regulated Outputs: 3
• Operating Temperature Range: -40°C To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADP5020ACPZ-R7TR

POWER-ON SEQUENCE USING THE I
When the EN pin is low, the regulator sequence is controlled by
the application processor sending I
activation. When Bit 4 (EN_ALL) in the REG_CONTROL_
STATUS register (Address 0x03) is set to 1, the regulator sequence
is as follows:
INTERNAL
XSHTDN
I
BUCK 1
BUCK 2
2
XSHTDN
C BUS
I
BUCK 1
BUCK 2
2
C BUS
LDO
VDDx
EN
POR
POR
LDO
EN
BK1_EN
V
2
UVLOR
= 1
C commands to control the
xxx_XSHTDN BITS
I
2
C SET/CLEAR
2
t
C INTERFACE
REG1
Figure 26. Individual Activation Through I
Figure 25. Activation and Power Failure Conditions
LD0_EN
= 1
Rev. 0 | Page 19 of 28
t
BK2_EN
REG2
= 1
1.
2.
3.
This sequence can be factory programmed through fuses.
Unused regulators can also be fuse programmed to be turned
off during sequencing.
t
REG3
<50µs
FORCE_XS
Buck 1
LDO
Buck 2
2
C Commands
= 1
t
XSHTDN
FORCE_XS
= 0
BK2_EN = 0
BK1_EN,
LDO_EN,
V
UVLOF
ADP5020