Datasheet

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2 Features
• 3.0V to 5.5V Input Voltage Range
• 1.8V Output Voltage (Default Setting)
• 1A/1.5A/2.0A Output Current
• Switching Frequency of 3MHz
• Small Solution Size (13 × 12mm)
3 Shutdown Operation
The demo board includes a pull-up resistor, R3, to enable the device once V
IN
has exceeded 1.8V (typ).
Use the EN post to disable the device by pulling this node to GND. A logic signal may be applied, to the
post, to test startup and shutdown of the device.
4 Adjusting the Output Voltage
The output voltage can be changed from 1.8V to another voltage by adjusting the feedback resistors using
the following equation:
V
OUT
= V
FB
(1 + (R1/R2)) (1)
Where V
FB
is 0.6V.
For more information on component selection and features, see:
• LMR10510 SIMPLE SWITCHER 5.5Vin, 1A Step-Down Voltage Regulator in SOT-23 and WSON
(SNVS727)
• LMR10515 SIMPLE SWITCHER 5.5Vin, 1.5A Step-Down Voltage Regulator in SOT-23 and WSON
(SNVS728)
• LMR10520 SIMPLE SWITCHER 5.5Vin, 2.0A Step-Down Voltage Regulator in WSON (SNVS730)
2
AN-2184 LMR10510/LMR10515/LMR10520 Demo Board SNVA501A–October 2011–Revised April 2013
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