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ADP3031ARM Arkusz danych(PDF) 3 Page - Analog Devices

Numer części ADP3031ARM
Szczegółowy opis  2 MHz PWM Boost Switching Regulator
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ADP3031ARM Arkusz danych(HTML) 3 Page - Analog Devices

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ADP3031
REV. PrB
–3–
PRELIMINARY TECHNICAL DATA
ABSOLUTE MAXIMUM RATINGS*
Input Voltage .............................................. –0.3 V to +6 V
SW Voltage ................................................................. 14 V
COMP Voltage ........................................ –0.3 V to +2.5 V
FB Voltage ............................................... –0.3 V to +1.3 V
SD Voltage .................................................. –0.3 V to +6 V
RT Voltage ............................................... –0.3 V to +1.2 V
PGND TO GND ................................................ ±200 mV
Operating Ambient Temperature Range ...... –40°C to 85°C
Operating Junction Temperature Range ..... –40°C to 125°C
Storage Temperature Range .................... –65°C to +150°C
θ
JA
Two Layer ..................................................... 206°C/W
θ
JA
Four Layer ..................................................... 142°C/W
Lead Temperature Range (Soldering, 60 sec.) .......... 300°C
*This is a stress rating only; operation beyond these limits can cause the device
to be permanently damaged. Unless otherwise specified, all voltages are
referenced to GND
ORDERING GUIDE
Voltage Package Branding
Model
Output
Option
Information
ADP3031ARM
ADJ
MSOP-8 P8A
PIN FUNCTION DESCRIPTIONS
Pin
Mnemonic
Function
1
COMP
Compensation Input.
2
FB
Feedback voltage sense input.
3
SD
Shutdown Input.
4
PGND
Power Ground. Ground return for
power transistor.
5
SW
Switching Output.
6
IN
Main Power Supply Input.
7
RT
Frequency Setting Input. A resistor
between this pin and GND sets the
switching frequency of the device.
8
GND
Analog Ground. The control
circuitry is referenced to this ground.
PIN CONFIGURATION
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 device features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recom-
mended to avoid performance degradation or loss of functionality.
Figure 1. Typical Application
1
2
3
4
8
7
6
5
TOP VIEW
(Not to Scale)
MSOP8
COMP
FB
SW
SD
PGND
IN
RT
GND
REF
RAMP
GEN
Q
S
R
F/F
DRIVER
CURRENT
SENSE
AMPLIFIER
COMP
SW
FB
IN
COMPARATOR
ERROR
AMP
PGND
BIAS
1
gm
2
5
SD
VOUT
ADP3031
7
IN
VOUT
OSC
RT
GND
4
6
8
R1
R2
RT
CC
3
CIN
COUT
D1
L1
RC


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