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CBC3225T1R0MR датащи(PDF) 7 Page - Analog Devices

номер детали CBC3225T1R0MR
подробное описание детали  Dual 3 MHz, 800 mA Buck
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домашняя страница  http://www.analog.com
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CBC3225T1R0MR датащи(HTML) 7 Page - Analog Devices

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Data Sheet
ADP5023
Rev. A | Page 7 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
2
1
3
4
5
6
18
17
16
15
14
13
NC
PGND2
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.
SW2
VIN2
GND
GND
MODE
PGND1
SW1
VIN1
AVIN
AGND
ADP5023
TOP VIEW
(Not to Scale)
Figure 2. Pin Configuration—View from Top of Die
Table 7. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
AGND
Analog Ground.
2
AGND
Analog Ground.
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.
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, connect this pin to the top of the capacitor
on VOUT3.
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
LDO Feedback Input. For device models with adjustable output voltage, connect this pin to the middle of the LDO
resistor divider. For device models with fixed output voltage, leave this pin unconnected.
20
VOUT3
LDO Output Voltage.
21
VIN3
LDO Input Supply (1.7 V to 5.5 V).
22
EN3
LDO Enable Pin. High level turns on this regulator, and low level turns it off.
23
AGND
Analog Ground.
24
AGND
Analog Ground.
EPAD (EP)
Exposed Pad. It is recommended that the exposed pad be soldered to the ground plane.


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