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ADP7183 数据表(PDF) 6 Page - Analog Devices

部件名 ADP7183
功能描述  Supported by ADIsimPOWER voltage regulator design tool
Download  19 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP7183 数据表(HTML) 6 Page - Analog Devices

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ADP7183
Data Sheet
Rev. 0 | Page 6 of 19
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
3
VA
4
VAFB
1
VOUT
2
SENSE
6GND
5EN
8VIN
7VREG
ADP7183
TOP VIEW
(Not to Scale)
NOTES
1. EXPOSED PAD. THE EXPOSED PAD ENHANCES THE
THERMAL PERFORMANCE AND IS ELECTRICALLY
CONNECTED TO VIN INSIDE THE PACKAGE. IT IS
RECOMMENDED THAT THE EXPOSED PAD CONNECT
TO THE INPUT VOLTAGE PLANE ON THE BOARD.
Figure 3. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VOUT
Regulated Output Voltage. Bypass the VOUT pin to the GND pin with a 4.7 μF or greater capacitor.
2
SENSE
Sense Input. Connect this pin to the VOUT pin.
3
VA
Low Noise Reference Voltage. Connect a 1 μF capacitor to GND to reduce noise. Do not connect a load to ground.
4
VAFB
Output Voltage Reference Feedback (Adjust Mode). Connect a 1 nF to 1 μF capacitor between the VAFB pin and
the VA pin to reduce noise. Start-up time is increased as a function of the capacitance. Connect an external resistor
divider between the VA pin and the VAFB pin to set the output voltage in adjust mode.
5
EN
Enable. Drive EN at least +1.25 V above or −1.3 V below ground to enable the regulator or drive EN to ground to
turn the regulator off. For automatic startup, connect EN to VIN.
6
GND
Ground.
7
VREG
Regulated Input Supply to the LDO Amplifier. Bypass VREG to GND with a 1 μF or greater capacitor. Do not
connect a load to ground.
8
VIN
Regulator Input Supply. Bypass VIN to GND with a 4.7 μF or greater capacitor.
EP
Exposed Pad. The exposed pad enhances the thermal performance and is electrically connected to VIN inside the
package. It is recommended that the exposed pad connect to the input voltage plane on the board.


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