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ISL95813IRZ View Datasheet(PDF) - Intersil

Part Name
Description
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ISL95813IRZ Datasheet PDF : 24 Pages
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ISL95813
Pin Descriptions (Continued)
PIN
7
8
9
10
11
12
13
14
15
16
17
18
19
20
e-pad
NAME
FB
RTN
ISUMN
ISUMP
PRGM2
VCC
BOOT
UG
PHASE
LG
PRGM1
SDA
ALERT#
SCLK
GND
Analog Input:
[Small-signal]
Analog Input:
[Small-signal]
Analog Input:
[Small-signal]
Analog Input:
[Small-signal]
Analog Input:
[Small-signal]
Analog Input:
[Small-signal]
Analog Input:
[Power]
Analog Output:
[Power]
Analog I/O:
[Power]
Analog Output:
[Power]
Analog Input:
[Small-signal]
Digital I/O
Digital Output
Digital Input
Analog Input:
[Power]
FUNCTION
Output voltage feedback sensing input for regulation. Connect via resistor to VCCSENSE on CPU.
Ground return for differential remote output voltage sensing.Connect via resistor to VCCSENSE on
CPU.
VR Loadline, Droop, and DCR sensing input.
VR Loadline, Droop, and DCR sensing input.
ADC input to program switching frequency and boot voltage using a resistor to ground. See
“PROGRAM 2 Pin” on page 13 for all programming options.
5V IC bias supply input. Bypass to ground with a high-quality 0.1µF ceramic capacitor.
Floating high-side gate drive voltage supply. Connect to PHASE with a 0.1µF to 0.22µF high-quality
ceramic capacitor.
Upper MOSFET gate drive. Connect with a wide trace to the gate of the upper switching MOSFET.
Switching node and upper MOSFET gate drive return path. Connect with a wide trace to the source
of the upper switching MOSFET, the drain of the lower switching MOSFET, and the output inductor.
Lower MOSFET gate drive. Connect with a wide trace to the gate of the lower switching MOSFET.
ADC input to program ICCMAX and FSEL bit using a resistor to ground. See “PROGRAM 1 Pin” on
page 13 for all programming options.
Data input/output for CPU serial interface.
Alert signal for CPU serial interface.
Clock input for CPU serial interface.
Ground reference for IC as well as gate drive power ground return path. Connect to system ground
plane with multiple vias.
3
FN8449.0
May 15, 2013
 

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