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SC1486ITSTRT Datasheet(PDF) 16 Page - Semtech Corporation

Part # SC1486ITSTRT
Description  Dual Synchronous Buck Pseudo Fixed Frequency DDR Power Supply Controller
PDF  17 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1486ITSTRT Datasheet(HTML) 16 Page - Semtech Corporation

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 2002 Semtech Corp.
www.semtech.com
SC1486
POWER MANAGEMENT
1
PO S
Vddq PWR
GOOD
1
2
Jumper Settings:
IN -- LEDs Enabled (Normal Mode)
OUT-- LEDs OFF (Bias measurements)
PGLE D 2
PGLE D 4
PGLE D 0
1
1
PO S
1
PO S
+
PGLE D 1
1
2
1
2
+
S
G
DD 1
4
1
PO S
PGLE D 3
EN 1
2
S
G
DD 1
2
Jumper Settings:
JP2
JP3
MODE
OUT
OUT
Vref ON, Vtt OFF (S3 Mode)
OUT
IN
Vref and Vtt OFF
IN
OUT
Normal Operation
IN
IN
Vref and Vtt OFF
1
2
3
EN 2
Zero Ohm Resistor Settings:
1 - 2 -- VIN_VTT = VBAT
2 - 3 -- VIN_VTT = 2.5V
1
Jumper Settings:
1 - 2 -- ENABLE + POWERSAVE
2 - 3 -- DISABLE
Open -- Enable + FIXED FREQUENCY
Vtt PWR
GOOD
1
2
Application Schematic



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