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ADP1109A Datasheet(PDF) 3 Page - Analog Devices

Part # ADP1109A
Description  Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP1109A Datasheet(HTML) 3 Page - Analog Devices

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ADP1109A
–3–
REV. 0
PIN FUNCTION DESCRIPTIONS
Pin
Mnemonic
Function
1VIN
Input Supply Voltage.
2
NC
No Connection.
3
SW
Collector Node of Power Transistor.
4
PGND
Power Ground.
5
GND
Ground.
6
NC
No Connection.
7
SHUTDOWN
When logic low is applied to this pin,
oscillator is shut down.
8
FB(SENSE)
On the ADP1109A (Adjustable), this
pin goes directly to the comparator input.
On the ADP1109A-3.3, ADP1109A-5
and ADP1109A-12, this pin is connected
through the internal resistor that sets
the output voltage.
ORDERING GUIDE
Output
Package
Package
Model
Voltage
Description
Options
ADP1109AAN
ADJ
Plastic DIP
N-8
ADP1109AAR
ADJ
Small Outline IC
SO-8
ADP1109AAN-3.3
3.3 V
Plastic DIP
N-8
ADP1109AAR-3.3
3.3 V
Small Outline IC
SO-8
ADP1109AAN-5
5 V
Plastic DIP
N-8
ADP1109AAR-5
5 V
Small Outline IC
SO-8
ADP1109AAN-12
12 V
Plastic DIP
N-8
ADP1109AAR-12
12 V
Small Outline IC
SO-8
PIN CONFIGURATIONS
8-Lead Plastic DIP
(N-8)
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
*FIXED VERSIONS
NC = NO CONNECT
VIN
NC
SW
FB(SENSE)*
SHUTDOWN
NC
GND
PGND
ADP1109A
8-Lead SOIC
(SO-8)
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
*FIXED VERSIONS
NC = NO CONNECT
NC
SW
PGND
FB(SENSE)*
SHUTDOWN
NC
GND
ADP1109A
VIN
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADP1109A features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE


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