XRP6657_12 Datasheet, PDF (4/11 Pages) Exar Corporation – 1.5A 1.3MHz Synchronous Step Down Converter

XRP6 6 5 7
1 .5 A 1 .3 M H z Sy n ch r o n o u s St e p D o w n Co n v e r t e r
PIN DESCRIPTION
Name
VFB
VSS_PWR
Pin Number
1
2
SW
3
VIN_PWR
4
VIN_CLN
5
EN
VSS_CLN
6
Exposed Pad
Description
Feedback Pin.
Receives the feedback voltage from an external resistive divider across the output.
Power Ground Pin.
Switching node.
Must be connected to inductor. This pin connects to the drains of the internal main
and synchronous power MOSFET switches.
Power Input Pin.
Must be closely decoupled to ground pin with a 4.7µF or greater capacitor.
Analog Input Pin.
Must be closely decoupled to ground pin with a 4.7µF or greater capacitor.
Enable Pin.
>1.2V: Enables the XRP6657
<0.4V:Disables the XRP6657
Do not leave this pin floating and enable the device once Vin is in the operating range.
Analog Ground Pin.
ORDERING INFORMATION
Part Number
XRP6657IHBTR - F
XRP6657 EVB
Temperature
Range
Marking
6657
- ƒ&A””7ƒ& IHB
WWX
XRP6657 Evaluation Board
Package
Packing
Quantity
Note 1
Thin DFN -6L 5K/Tape and Reel
RoHS compliant
Halogen Free
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Note 2
Adjustable
output voltage
© 2012 Exar Corporation
4/ 11
Rev. 1.4.0