MULTIPHSPOL-RD Silicon Laboratories Inc, MULTIPHSPOL-RD Datasheet - Page 19

• Manufacturer Part Number: MULTIPHSPOL-RD
• Description: KIT REFERENCE DESIGN FOR SI825X
• Manufacturer: Silicon Laboratories Inc
• Type: Other Power Managementr

Specifications of MULTIPHSPOL-RD

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V
• Current - Output: 40A
• Voltage - Input: 10 ~ 15V
• Regulator Topology: Buck
• Frequency - Switching: 391kHz
• Board Type: Fully Populated
• Utilized Ic / Part: SI8250, SI8251, SI8252
• Input Voltage: 10 V to 15 V
• Output Voltage: 3.3 V
• Interface Type: USB
• Product: Power Management Modules
• Supply Current: 10 A
• For Use With/related Products: Si8250
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1323

10. Si8250 Multi-Phase POL Target Board
The Si8250 Multi-Phase POL Target Board has a Si8250-IQ installed. Refer to Figure 15 for the locations of the
various I/O connectors and major components.
10.1. System Clock Sources
The Si8250-IQ device installed on the target board features a calibrated programmable internal oscillator that is
enabled as the system clock source on reset. After reset, the device operates at a frequency of 80 kHz by default
using the internal low-frequency oscillator but may be configured by software to operate at other frequencies. Refer
to the Si825x family data sheet for more information on configuring the system clock source.
J1, J2
J3, J4
J5, J4
J6
J7
JP1
LED
LED
RESET
GND
VIN
J1
J2
+
-
C71
VIN, Supply Input power connection 10-15 V, 10 A
VOUT, Supply output connection for load simulator
Alternate VOUT monitoring node
SMBus adapter
Si8250 Debug Interface
Si8250 ENABLE Polarity Select
VIN Power Good Indicator
VOUT Power Good indicator
Si8250 and Target Board Reset
Si825x
U3
MULTI PHASE POL
J6
AMP
Top View
U4
JP1
Figure 15. Si8250 Multi-Phase POL Target Board
DEBUG
Q3
Q4
Q2
Q1
J7
Reset
L2
L1
Confidential Rev. 0.2
SENSE
VOUT
GND
Si825x Multi-Phase POL-RD
J3
J5
J4
+
-
Si825x
Bottom View
Driver
Driver
U2
U1
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