MAX1820ZEUB Ver la hoja de datos (PDF) - Unspecified

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componentes Descripción

Fabricante

MAX1820ZEUB

PLASTIC ENCAPSULATED DEVICES

Unspecified 

Conclusion

The MAX1820 successfully meets the quality and reliability standards required of all Maxim products. In addition,

Maxim’s continuous reliability monitoring program ensures that all outgoing product will continue to meet Maxim’s quality

and reliability standards.

Table of Contents

I. ........Device Description

II. ........Manufacturing Information

III. .......Packaging Information

IV. .......Die Information

V. ........Quality Assurance Information

VI. .......Reliability Evaluation

......Attachments

I. Device Description

A. General

The MAX1820 low-dropout, pulse-width-modulated (PWM) DC-DC buck regulator is optimized to provide power to the

power amplifier (PA) in WCDMA cell phones; however, it may be applied in many other applications where high

efficiency is a priority. The supply voltage range is from 2.6V to 5.5V, and the guaranteed output current is 600mA;

1MHz PWM switching allows for small external components, while skip mode reduces quiescent current to 180µA

with light loads.

The MAX1820 is dynamically controlled to provide varying output voltages from 0.4V to 3.4V. The circuit is designed

such that the output voltage settles in <30µs for a full-scale change in voltage and current.

The MAX1820 includes a low on-resistance internal MOSFET switch and synchronous rectifier to maximize

efficiency and minimize external component count; 100% duty-cycle operation allows for low dropout of only 150mV

at 600mA load, including the external inductor resistance. The device is offered in 10-pin µMAX and tiny 3 x 4 chip-

scale (UCSP™) packages

B. Absolute Maximum Ratings

Item

BATT, OUT (FB), SHDN, SYNC, SKIP, REF to GND

PGND to GND

LX, COMP to GND

Output Short-Circuit Duration

Operating Temperature Range

Junction Temperature

Storage Temperature Ranges

Lead Temperature (soldering, 10s)

Continuous Power Dissipation (TA = +70°C)

10-Pin µMAX

Derates above +70°C

10-Pin µMAX

Rating

-0.3V to +6.0V

-0.3V to +0.3V

-0.3V to (VBATT + 0.3V)

Infinite

-40°C to +85°C

+150°C

-65°C to +150°C

+300°C

444mW

5.6mW/°C

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