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TPS62042DGQ Fiches technique(PDF) 4 Page - Texas Instruments

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No de pièce TPS62042DGQ
Description  1.2 A/1.25 MHZ, HIGH EFFICIENCY STEP DOWN CONVERTER
Download  21 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS62042DGQ Fiches technique(HTML) 4 Page - Texas Instruments

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TPS62040
TPS62042,TPS62043
TPS62044,TPS62046
SLVS463A − JUNE 2003 − REVISED OCTOBER 2003
www.ti.com
4
PIN ASSIGNMENTS
1
2
3
4
5
10
9
8
7
6
EN
VIN
VIN
GND
FB
PGND
PGND
SW
SW
MODE
DGQ PACKAGE
(TOP VIEW)
NOTE: The PowerPAD must be connected to GND.
1
2
3
4
5
10
9
8
7
6
EN
VIN
VIN
GND
FB
PGND
PGND
SW
SW
MODE
DRC PACKAGE
(TOP VIEW)
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
EN
1
I
Enable. Pulling EN to ground forces the device into shutdown mode. Pulling EN to VI enables the device. EN should
not be left floating and must be terminated.
VIN
2,3
I
Supply voltage input
GND
4
Analog ground
FB
5
I
Feedback pin. Connect FB directly to the output if the fixed output voltage version is used. For the adjustable version
an external resistor divider is connected to this pin. The internal voltage divider is disabled for the adjustable version.
MODE
6
I
Pulling the MODE pin high allows the device to be forced into fixed frequency operation. Pulling the MODE pin to low
enables the power save mode where the device operates in fixed frequency PWM mode at high load currents and
in PFM mode (pulse frequency modulation) at light load currents.
SW
7,8
I/O
This is the switch pin of the converter and is connected to the drain of the internal power MOSFETs
PGND
9,10
Power ground


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