LMZ12003 datasheet(1/16 Pages) NSC

Part #	LMZ12003

Description	3A SIMPLE SWITCHER짰 Power Module with 20V Maximum Input Voltage

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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LMZ12003

June 10, 2010

3A SIMPLE SWITCHER® Power Module with 20V Maximum

Input Voltage

Easy to use 7 pin package

30109086

TO-PMOD 7 Pin Package

10.16 x 13.77 x 4.57 mm (0.4 x 0.542 x 0.18 in)

θ

JA = 20°C/W, θJC = 1.9°C/W

RoHS Compliant

Electrical Specifications

■ 18W maximum total power output

■ Up to 3A output current

■ Input voltage range 4.5V to 20V

■ Output voltage range 0.8V to 6V

■ Efficiency up to 92%

Key Features

■ Integrated shielded inductor

■ Simple PCB layout

■ Flexible startup sequencing using external soft-start

capacitor and precision enable

■ Protection against inrush currents and faults such as input

UVLO and output short circuit

■ -40°C to 125°C junction temperature range

■ Single exposed pad and standard pinout for easy

mounting and manufacturing

■ Fast transient response for FPGAs and ASICs

■ Low output voltage ripple

■ Pin-to-pin compatible family:

LMZ14203/2/1 (42V max 3A, 2A, 1A)

LMZ12003/2/1 (20V max 3A, 2A, 1A)

■ Fully Webench® Power Designer enabled

Applications

■ Point of load conversions from 5V and 12V input rail

■ Time critical projects

■ Space constrained high thermal requirement applications

■ Negative output voltage applications (See AN-2027)

Performance Benefits

■ Operates at high ambient temperature with no thermal

derating

■ High efficiency reduces system heat generation

■ Low radiated emissions (EMI) complies with EN55022

class B standard

■ Passes 10V/m radiated immunity EMI test standard

EN61000 4-3

System Performance

Efficiency V

IN = 12V VOUT = 5.0V

30109018

Thermal derating curve

V

IN = 12V VOUT = 5.0V

30109019

Radiated Emissions (EN 55022 Class B)

from Evaluation Board

30109050

301090

www.national.com

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