LM2621MM datasheet(4/11 Pages) NSC

Nome de Peças	LM2621MM

Descrição Electrónicos	Low Input Voltage, Step-Up DC-DC Converter

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Fabricante Electrônico	NSC [National Semiconductor (TI)]

Página de início	http://www.national.com

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4 / 11 page

Pin Description

Name

Function

1

PGND

Power Ground

2

EN

Active-Low Shutdown Input

3

FREQ

Frequency Adjust. An external resistor connected between this pin and Pin 6 (V

DD) sets the switching

frequency of the LM2621.

4

FB

Output Voltage Feedback

5

SGND

Signal Ground

6V

DD

Power Supply for Internal Circuitry

7

BOOT

Bootstrap Supply for the Gate Drive of Internal MOSFET Power Switch

8

SW

Drain of the Internal MOSFET Power Switch

Typical Performance Characteristics

Efficiency vs Load Current

V

OUT = 5.0V

Efficiency vs Load Current

V

OUT = 3.3V

10093401

10093402

V

FB vs Temperature

I

OP vs Temperature

10093403

10093404

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Nº de peça semelhante - LM2621MM

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National Semiconductor ...	LM2621MM	254Kb / 10P	Low Input Voltage, Step-Up DC-DC Converter
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Descrição semelhante - LM2621MM

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LM2621MM Folha de dados(PDF) 4 Page - National Semiconductor (TI)

LM2621MM Folha de dados(HTML) 4 Page - National Semiconductor (TI)

Nº de peça semelhante - LM2621MM

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