LM2852X-1.2EVAL National Semiconductor, LM2852X-1.2EVAL Datasheet - Page 2

• Manufacturer Part Number: LM2852X-1.2EVAL
• Description: BOARD EVAL LM2852X-1.2
• Manufacturer: National Semiconductor
• Series: PowerWise®, SIMPLE SWITCHER®r

Specifications of LM2852X-1.2EVAL

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V
• Current - Output: 2A
• Voltage - Input: 2.85 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1.5MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM2852
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -

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Connection Diagram
Pin Descriptions
AVIN (Pin 1): Chip bias input pin. This provides power to the
logic of the chip. Connect to the input voltage or a separate
rail.
EN (Pin 2): Enable. Connect this pin to ground to disable the
chip; connect to AVIN or leave floating to enable the chip;
enable is internally pulled up.
SGND (Pin 3): Signal ground.
SS (Pin 4): Soft-start pin. Connect this pin to a small capaci-
tor to control startup. The soft-start capacitance range is
restricted to values 1 nF to 50 nF.
ETSSOP-14
TOP VIEW
MXA14A
2
NC (Pins 5, 12 and 13): No connect. These pins must be
tied to ground or left floating in the application.
PVIN (Pins 6, 7): Input supply pin. PVIN is connected to the
input voltage. This rail connects to the source of the internal
power PFET.
SW (Pins 8, 9): Switch pin. Connect to the output inductor.
PGND (Pins 10, 11): Power ground. Connect this to an
internal ground plane or other large ground plane.
SNS (Pin 14): Output voltage sense pin. Connect this pin to
the output voltage as close to the load as possible.
Exposed Pad: Connect to ground.
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