MAX4473
Ordering Information
PART MAX4473EUA MAX4473ETA MAX4473ESA TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 MAX 8 QFN 8 SO
Applications
GSM Cellular Phones Cordless Phones Precision Current Control High-Frequency Servo Loops
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
VCC 0.1F RG1 8 VCC A1 BUFFER 3R V-TO-I CONVERTER A2 Q1 MAX4473 GND 5 SR3 6 RG3 RFIN ICCPA = VPC RG1 4 RG3 RSENSE 1 SR1 2 SR2 A3 ERROR AMPLIFIER OUT 7 GC IN VCC PA ICCPA RSENSE RG2
4 PC
R 3 SHDN
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications in 8-Pin QFN MAX4473
ABSOLUTE MAXIMUM RATINGS
VCC to GND..............................................................................7V SR1, SR2, SR3, PC, SHDN, OUT to GND ............................................-0.3V to (VCC + 0.3V) SR1 to SR3......................................................................0 to VCC OUT and SR3 Short-Circuit Duration to VCC or GND ........................................................Continuous Current into Any Pin..........................................................±50mA Continuous Power Dissipation (TA = +70°C) 8-Pin MAX (derate 4.10mW/°C above +70°C) ............330mW 8-Pin QFN (derate 24.4mW/°C above +70°C) ............1951mW 8-Pin SO (derate 5.88mW/°C above +70°C).................471mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature. .....................................................+150°C Storage Temperature Range. ............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C

上一页下一页