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XRP7740ILBTR-AAAA-F Datasheet(PDF) 8 Page - Exar Corporation

Part # XRP7740ILBTR-AAAA-F
Description  Quad-Output Digital PWM Buck Controller Supporting high current loads
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRP7740ILBTR-AAAA-F Datasheet(HTML) 8 Page - Exar Corporation

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XRP7740
REV 1.1.0
Quad-Output Digital PWM Buck Controller
3,4,5,6
GPIO0-GPIO3
These pins can be configured as inputs or outputs to implement custom flags,
power good signals and enable/disable controls. A GPIO pin can also be
programmed as an input clock synchronizing IC to external clock. Refer to the
“GPIO Pins” Section and the “External Clock Synchronization” Section for more
information.
7,8
GPIO4_SDA,
GPIO5_SCL
I
2C serial interface communication pins. These pins can be re-programmed to
perform GPIO functions in applications when I
2C bus is not used.
12,13,
14,15
VOUT1-
VOUT4
Voltage sense.
Connect to the output of the corresponding power stage.
40
LDOOUT
Output of the Standby LDO. It can be configured as a 5V or 3.3V output. A
compensation capacitor should be used on this pin [see Application Note].
9
ENABLE
If ENABLE is pulled high, the chip powers up (logic reset, registers configuration
loaded, etc.). If pulled low for longer than 100us, the XRP7740 is placed into
shutdown.
Exposed
PAD
AGND
Analog Ground.
Connect to analog ground (as noted above for pin 11).
EXAR RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET.
EXAR CONFIDENTIAL, PRELIMINARY & PROPRIETARY. DO NOT DISTRIBUTE OR COPY.
8


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