LX3005CDM datasheet, PDF - EEWORLD Datasheet

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LX3005CDM: DescriptionSWITCHING REGULATOR, PDSO8; CategoryPower/power management The power supply circuit; File Size107KB，4 Pages; ManufacturerMicrosemi; Websitehttps://www.microsemi.com; Environmental Compliance

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LX3005CDM Overview

SWITCHING REGULATOR, PDSO8

LX3005CDM Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Microsemi
Parts packaging code	SOIC
package instruction	ROHS COMPLIANT, PLASTIC, SOIC-8
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Other features	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 21V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	25 V
Minimum input voltage	4.75 V
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
Humidity sensitivity level	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
surface mount	YES
Switch configuration	BUCK
Maximum switching frequency	420 kHz
Temperature level	OTHER
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal location	DUAL
Maximum time at peak reflow temperature	40

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LX3005

2A S

TEP

-D

OWN

ONVERTER

RODUCTION

ATASHEET

KEY FEATURES



2A Constant Output Current

130m R

DSON

Internal Power MOSFET

Up to 94% Efficiency

Fixed 420kHz Frequency

Wide 4.75V to 25V Input Voltage Range

Output Voltage Adjustable from 0.8V to

21V

Built-in Thermal Shutdown Function

Built-in Current Limit Function

Built-in Soft-start Function

Support Ceramic or Electrolytic

Capacitors

Pb-free and RoHS Compliant

AP P LIC ATI O NS



Portable DVD

LCD Monitor/LCD TV

Digital Photo Frame

ADSL

Set-Top Box

DESCRIPTION

The LX3005 is a 420kHz fixed

frequency PWM buck (step-down) DC-DC

converter, capable of driving a 2A load

with high efficiency, low ripple and

excellent line and load regulation. The

device operates over a wide input voltage

range of 4.75V to 25V, and the output

voltage can be externally set from 0.8V to

a voltage near VIN, as the PWM control

circuit is able to adjust the duty ratio

linearly from 0% to close to 100%.

The LX3005 device integrates a

high-side low RDS

PMOS for a low

cost and high efficiency solution. An

internal transconductance error amplifier

is used in the control loop allowing

flexibility to compensate the system using

an all ceramic capacitor system.

The LX3005 also features an enable

function, internal circuitry for soft start,

and protection schemes such as thermal

shutdown, over-current protection, and

short-circuit protection. When OCP or

SCP is triggered, the device operating

frequency will be reduced from typically

420kHz to typically 40kHz, limiting the

output power capability.

The LX3005 serves as an ideal power

supply device for portable devices,

especially for chipset power in portable

systems. It’s widely used for PDVD, LCD

monitor and DPF chipset power sources.

The LX3005 is available in SOIC8

package and is functional from an ambient

temperature range of 0˚C to 85˚C.

W W W.

Microsemi

.CO

IMPORTANT:

For the most current data, consult

MICROSEMI’s

website:

http://www.microsemi.com

Patents Pending

PRODUCT HIGHLIGHT

VIN

ON OFF

GND

OUT

@ 2A

LX3005

COMP

LX3005

PACKAGE ORDER INFO

THERMAL DATA

(C)

0 to 85

Plastic SOIC 8-pin

RoHS Compliant / Pb-free



= 100C/W

THERMAL RESISTANCE

JUNCTION TO AMBIENT

LX3005CDM

Note: Available in Tape & Reel. Append the letters “TR” to the part number.

(i.e. LX3005CDM-TR)

Junction Temperature Calculation: T

= T

+ (P



The



numbers are guidelines for the thermal performance of the

device/pc-board system. All of the above assume no ambient airflow.



2010

Rev.1.0, 2010-02-05

Microsemi

Analog Mixed Signal Group

11861 Western Avenue, Garden Grove, CA. 92841, 800-8776458, 714-898-8121, Fax: 714-893-2570

Page 1

LX3005CDM Related Products

	LX3005CDM	LX3005	LX3005CDM-TR
Description	SWITCHING REGULATOR, PDSO8	SWITCHING REGULATOR, PDSO8	SWITCHING REGULATOR, PDSO8
Maker	Microsemi	-	Microsemi
Parts packaging code	SOIC	-	SOIC
package instruction	ROHS COMPLIANT, PLASTIC, SOIC-8	-	SOP,
Contacts	8	-	8
Reach Compliance Code	compli	-	compli
ECCN code	EAR99	-	EAR99
Other features	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 21V	-	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 21V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	-	SWITCHING REGULATOR
Control Technology	PULSE WIDTH MODULATION	-	PULSE WIDTH MODULATION
Maximum input voltage	25 V	-	25 V
Minimum input voltage	4.75 V	-	4.75 V
JESD-30 code	R-PDSO-G8	-	R-PDSO-G8
JESD-609 code	e3	-	e3
Number of functions	1	-	1
Number of terminals	8	-	8
Maximum operating temperature	85 °C	-	85 °C
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY
encapsulated code	SOP	-	SOP
Package shape	RECTANGULAR	-	RECTANGULAR
Package form	SMALL OUTLINE	-	SMALL OUTLINE
Certification status	Not Qualified	-	Not Qualified
surface mount	YES	-	YES
Switch configuration	BUCK	-	BUCK
Maximum switching frequency	420 kHz	-	420 kHz
Temperature level	OTHER	-	OTHER
Terminal surface	MATTE TIN	-	MATTE TIN
Terminal form	GULL WING	-	GULL WING
Terminal location	DUAL	-	DUAL

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