LX8820-33CLM 데이터 시트보기 (PDF) - Microsemi Corporation

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LX8820-33CLM

3.3V/1.0A Ultra Low Dropout Regulator

Microsemi Corporation 

LX8820

®

3.3V/1.0A Ultra Low Dropout Regulator

TM

PRODUCTION DATA SHEET

ABSOLUTE MAXIMUM RATINGS

Input Voltage (VIN) ....................................................................................................... 10V

Load Current (Internally Limited)................................................................................... 2A

Power Dissipation ................................................................................... Internally Limited

Short-Circuit Protection ........................................................................................Indefinite

Operating Junction Temperature................................................................................ 150°C

Storage Temperature Range........................................................................ -65°C to 150°C

RoHS / Pb-free Peak Package Solder Reflow Temperature

(40 second maximum exposure) ....................................................................260°C (+0,-5)

Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to

Ground. Currents are positive into, negative out of specified terminal.

THERMAL DATA

LM Plastic MLP 6-Pin

THERMAL RESISTANCE-JUNCTION TO TAB, θJT

THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA

(Typical, depending on mounting/pcb layout)

8°C/W

29-35°C/W

Junction Temperature Calculation: TJ = TA + (PD x θJA).

The θJA numbers are guidelines for the thermal performance of the device/pc-board

system. All of the above assume no ambient airflow. θJA can vary significantly depending

on mounting technique. (See Application Notes Section: Thermal considerations)

PACKAGE PIN OUT

VIN 1

GND 2

N.C. 3

6 VIN

5 VOUT

4 VOUT

LM PACKAGE

(Top View)

Heatsink must be connected to GND

or left floating (see pg 7 for details)

. N/C = Not internally connected, don’t

care for PCB layout consideration.

RoHS / Pb-free 100% Matte Tin Lead Finish

PIN NAME

VIN

GND

VOUT

FUNCTIONAL PIN DESCRIPTION

DESCRIPTION

Positive unregulated supply input for the regulator. Bypass to GND with at least 2.2µF of low ESR and ESL

capacitance.

Common terminal for ground reference. The input and output bypass capacitors should be connected to this

pin.

Regulator output. It is recommended to bypass to GND with at least 2.2µF. Size your output capacitor to meet

the transient loading requirement. If you have a very dynamic load, a lower ESR capacitor will improve the

response to these load steps.

RECOMMENDED MAX OPERATING CONDITIONS

Parameter

Symbol

LX8820-33

Min

Typ

Input Voltage

Load Current (with adequate heat sinking)

Operating Junction Temperature

VIN

4.5

IL

TJ

Max

10

1200

125

Units

V

mA

°C

Copyright © 2004

Rev. 1.1, 2005-02-24

Microsemi

Integrated Products Division

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

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