SC121ULTRT Semtech, SC121ULTRT Datasheet - Page 14

• Manufacturer Part Number: SC121ULTRT
• Description: IC BOOST SYNC 1.2A MLPD-6
• Manufacturer: Semtech
• Type: Step-Up (Boost)r

Specifications of SC121ULTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 1.8 ~ 5 V
• Current - Output: 1.2A
• Frequency - Switching: 1.2MHz
• Voltage - Input: 0.7 ~ 4.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-MLPD-UT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC121ULTRTTR

Pin Descriptions
MLPD Pin #
1
2
3
4
5
6
T
Pin Name
Thermal
GND
OUT
Pad
EN
LX
FB
IN
Pin Function
Switching node — connect an inductor from the input supply to this pin.
Signal and power ground.
Battery or supply input — requires an external 10μF bypass capacitor (capacitance evaluated while under
V
Enable digital control input — active high.
Feedback input — connect to GND for preset 3.3V output. A voltage divider is connected from OUT to GND
to adjust output from 1.8V to 5.0V.
Output voltage pin — requires an external 10μF bypass capacitor (capacitance evaluated while under V
bias) for normal operation.
Thermal Pad is for heat sinking purposes — connect to ground plane using multiple vias — not connected
internally.
IN
bias) for normal operation.
SC121
OUT
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