ADP5024 Analog Devices, ADP5024 Datasheet - Page 8

• Manufacturer Part Number: ADP5024
• Description: Dual 3 MHz, 1200 mA Buck Regulators with One 300 mA LDO
• Manufacturer: Analog Devices

ADP5024
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 7. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Mnemonic
AGND
AGND
VIN2
SW2
PGND2
NC
EN2
FB2
VOUT2
VOUT1
FB1
EN1
MODE
PGND1
SW1
VIN1
AVIN
AGND
FB3
VOUT3
VIN3
EN3
AGND
AGND
EPAD (EP)
Description
Analog Ground.
Analog Ground.
BUCK2 Input Supply (2.3 V to 5.5 V). Connect VIN2 to VIN1 and AVIN.
BUCK2 Switching Node.
Dedicated Power Ground for BUCK2.
No Connect. Leave this pin unconnected.
BUCK2 Enable Pin. High level turns on this regulator, and low level turns it off.
BUCK2 Feedback Input. For device models with an adjustable output voltage, connect this pin to the middle of the
BUCK2 resistor divider. For device models with a fixed output voltage, leave this pin unconnected.
BUCK2 Output Voltage Sensing Input. Connect VOUT2 to the top of the capacitor on VOUT2.
BUCK1 Output Voltage Sensing Input. Connect VOUT1 to the top of the capacitor on VOUT1.
BUCK1 Feedback Input. For device models with an adjustable output voltage, connect this pin to the middle of the
BUCK1 resistor divider. For device models with a fixed output voltage, leave this pin unconnected.
BUCK1 Enable Pin. High level turns on this regulator, and low level turns it off.
BUCK1/BUCK2 Operating Mode. MODE = high for forced PWM operation. MODE = low for automatic PWM/PSM
operation.
Dedicated Power Ground for BUCK1.
BUCK1 Switching Node.
BUCK1 Input Supply (2.3 V to 5.5 V). Connect VIN1 to VIN2 and AVIN.
Analog Input Supply (2.3 V to 5.5 V). Connect AVIN to VIN1 and VIN2.
Analog Ground.
LDO Feedback Input. For device models with an adjustable output voltage, connect this pin to the middle of the
LDO resistor divider. For device models with a fixed output voltage, connect this pin to the top of the capacitor
on VOUT3.
LDO Output Voltage.
LDO Input Supply (1.7 V to 5.5 V).
LDO Enable Pin. High level turns on this regulator, and low level turns it off.
Analog Ground.
Analog Ground.
Exposed Pad. It is recommended that the exposed pad be soldered to the ground plane.
Figure 2. Pin Configuration—View from Top of the Die
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
2. IT IS RECOMMENDED THAT THE EXPOSED PAD
BE SOLDERED TO THE GROUND PLANE.
Rev. A | Page 8 of 28
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