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ADP5024 Datasheet(PDF) 7 Page - Analog Devices

Part # ADP5024
Description  Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP5024 Datasheet(HTML) 7 Page - Analog Devices

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Data Sheet
ADP5037
Rev. D | Page 7 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
NOTES
1. NC = NOT INTERNALLY CONNECTED.
2. IT IS RECOMMENDED THAT THE EXPOSED PAD
BE SOLDERED TO THE GROUND PLANE.
1
2
3
4
5
6
15
16
17
18
14
13
ADP5037
TOP VIEW
(Not to Scale)
AGND
AVIN
VIN1
SW1
PGND1
MODE
FB4
EN4
VIN2
SW2
PGND2
NC
Figure 2. Pin Configuration—View from the Top of the Die
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
FB4
LDO2 Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the
LDO2 resistor divider. For device models with fixed output voltage, connect this pin to the top of the capacitor on
VOUT4.
2
EN4
LDO2 Enable Pin. High level turns on this regulator, and low level turns it off.
3
VIN2
BUCK2 Input Supply (2.3 V to 5.5 V). Connect VIN2 to VIN1 and AVIN.
4
SW2
BUCK2 Switching Node.
5
PGND2
Dedicated Power Ground for BUCK2.
6
NC
No Connect. Leave this pin unconnected or connect to ground.
7
EN2
BUCK2 Enable Pin. High level turns on this regulator, and low level turns it off.
8
FB2
BUCK2 Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the
BUCK2 resistor divider. For device models with fixed output voltage, leave this pin unconnected.
9
VOUT2
BUCK2 Output Voltage Sensing Input. Connect VOUT2 to the top of the capacitor on VOUT2.
10
VOUT1
BUCK1 Output Voltage Sensing Input. Connect VOUT1 to the top of the capacitor on VOUT1.
11
FB1
BUCK1 Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the
BUCK1 resistor divider. For device models with fixed output voltage, leave this pin unconnected.
12
EN1
BUCK1 Enable Pin. High level turns on this regulator, and low level turns it off.
13
MODE
BUCK1/BUCK2 Operating Mode. MODE = high: forced PWM operation. MODE = low: auto PWM/PSM operation.
14
PGND1
Dedicated Power Ground for BUCK1.
15
SW1
BUCK1 Switching Node.
16
VIN1
BUCK1 Input Supply (2.3 V to 5.5 V). Connect VIN1 to VIN2 and AVIN.
17
AVIN
Analog Input Supply (2.3 V to 5.5 V). Connect AVIN to VIN1 and VIN2.
18
AGND
Analog Ground.
19
FB3
LDO1 Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the
LDO1 resistor divider. For device models with fixed output voltage, connect this pin to the top of the capacitor on
VOUT3.
20
VOUT3
LDO1 Output Voltage.
21
VIN3
LDO1 Input Supply (1.7 V to 5.5 V).
22
EN3
LDO1 Enable Pin. High level turns on this regulator, and low level turns it off.
23
VIN4
LDO2 Input Supply (1.7 V to 5.5 V).
24
VOUT4
LDO2 Output Voltage.
EPAD (EP)
Exposed Pad. It is recommended that the exposed pad be soldered to the ground plane.


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