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ADP7104ACPZ-9.0-R7 数据表(PDF) 6 Page - Analog Devices

部件名 ADP7104ACPZ-9.0-R7
功能描述  20 V, 500 mA, Low Noise, CMOS LDO
Download  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP7104ACPZ-9.0-R7 数据表(HTML) 6 Page - Analog Devices

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ADP7104
Data Sheet
Rev. B | Page 6 of 28
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO
THIS PIN.
2. IT IS HIGHLY RECOMMENDED THAT THE
EXPOSED PAD ON THE BOTTOM OF THE
PACKAGE BE CONNECTED TO THE GROUND
PLANE ON THE BOARD.
3
GND
4
NC
1
VOUT
2
SENSE/ADJ
6 GND
5 EN/UVLO
8 VIN
7 PG
ADP7104
TOP VIEW
(Not to Scale)
Figure
3. LFCSP Package
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO
THIS PIN.
2. IT IS HIGHLY RECOMMENDED THAT THE
EXPOSED PAD ON THE BOTTOM OF THE
PACKAGE BE CONNECTED TO THE GROUND
PLANE ON THE BOARD.
VOUT
1
SENSE/ADJ
2
GND
3
NC
4
VIN
8
PG
7
GND
6
EN/UVLO
5
ADP7104
TOP VIEW
(Not to Scale)
Figure 4. Narrow Body SOIC Package
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VOUT
Regulated Output Voltage. Bypass VOUT to GND with a 1 µF or greater capacitor.
2
SENSE/ADJ
Sense (SENSE). Measures the actual output voltage at the load and feeds it to the error amplifier.
Connect SENSE as close as possible to the load to minimize the effect of IR drop between the
regulator output and the load. This function applies to fixed voltages only.
Adjust Input (ADJ). An external resistor divider sets the output voltage. This function applies to
adjustable voltages only.
3
GND
Ground.
4
NC
Do Not Connect to this Pin.
5
EN/UVLO
Enable Input (EN). Drive EN high to turn on the regulator; drive EN low to turn off the regulator.
For automatic startup, connect EN to VIN.
Programmable Undervoltage Lockout (UVLO). When the programmable UVLO function is used,
the upper and lower thresholds are determined by the programming resistors.
6
GND
Ground.
7
PG
Power Good. This open-drain output requires an external pull-up resistor to VIN or VOUT. If the
part is in shutdown, current limit, thermal shutdown, or falls below 90% of the nominal output
voltage, PG immediately transitions low. If the power-good function is not used, the pin may be
left open or connected to ground.
8
VIN
Regulator Input Supply. Bypass VIN to GND with a 1 µF or greater capacitor.
EPAD
Exposed Pad. Exposed paddle on the bottom of the package. The EPAD enhances thermal
performance and is electrically connected to GND inside the package. It is highly recommended
that the EPAD be connected to the ground plane on the board.


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