LM2852YMXA-2.5/NOPB National Semiconductor, LM2852YMXA-2.5/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM2852YMXA-2.5/NOPB
• Description: IC REG SYNC BUCK 2A 2.5V 14TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®, SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2852YMXA-2.5/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 2.5V
• Current - Output: 2A
• Frequency - Switching: 500kHz
• Voltage - Input: 2.85 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP Exposed Pad, 14-eTSSOP 14-HTSSOP
• For Use With: LM2852Y-2.5EVAL - BOARD EVAL LM2852Y-2.5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2852YMXA-2.5; *LM2852YMXA-2.5/NOPB; LM2852YMXA-2.5

www.national.com
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.
20127003