LT3023 Dual 100mA, Low Dropout, Low Noise, Micropower Regulator FEATURES DESCRIPTION n Low Noise: 20V (10Hz to 100kHz) The LT 3023 is a dual, micropower, low noise, low drop- RMS n Low Quiescent Current: 20A/Channel out regulator. With an external 0.01F bypass capacitor, n Wide Input Voltage Range: 1.8V to 20V output noise drops to 20V over a 10Hz to 100kHz RMS n Output Current: 100mA/Channel bandwidth. Designed for use in battery-powered systems, n Very Low Shutdown Current: <0.1A the low 20A quiescent current per channel makes it an n Low Dropout Voltage: 300mV at 100mA ideal choice. In shutdown, quiescent current drops to less n Adjustable Output from 1.22V to 20V than 0.1A. Shutdown control is independent for each n Stable with 1F Output Capacitor channel, allowing for exibility in power management. The n Stable with Aluminum, Tantalum or device is capable of operating over an input voltage from Ceramic Capacitors 1.8V to 20V, and can supply 100mA of output current from n Reverse Battery Protected each channel with a dropout voltage of 300mV. Quiescent n No Reverse Current current is well controlled in dropout. n No Protection Diodes Needed The LT3023 regulator is stable with output capacitors as n Overcurrent and Overtemperature Protected low as 1F. Small ceramic capacitors can be used without n Thermally Enhanced 10-Lead MSOP and DFN the series resistance required by other regulators. Packages Internal protection circuitry includes reverse battery protection, current limiting, thermal limiting and reverse APPLICATIONS current protection. The device is available as an adjust- n Cellular Phones able device with a 1.22V reference voltage. The LT3023 n Pagers regulator is available in the thermally enhanced 10-lead n Battery-Powered Systems MSOP and DFN packages. n Frequency Synthesizers L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Wireless Modems TYPICAL APPLICATION 3.3V/2.5V Low Noise Regulators 10Hz to 100kHz Output Noise 3.3V AT100mA IN OUT1 20V NOISE V RMS IN 3.7V TO 1F SHDN1 0.01F 10F 422k 20V SHDN2 BYP1 ADJ1 249k V OUT LT3023 20V RMS 100V/DIV 2.5V AT100mA OUT2 20V NOISE RMS 0.01F 10F 261k BYP2 ADJ2 3023 TA01b GND 249k 3023 TA01 3023fa 1LT3023 ABSOLUTE MAXIMUM RATINGS (Note 1) IN Pin Voltage .........................................................20V Output Short-Circut Duration ........................... Inde nite OUT1, OUT2 Pin Voltage .........................................20V Operating Junction Temperature Range Input to Output Differential Voltage .........................20V (Note 2) ............................................. 40C to 125C ADJ1, ADJ2 Pin Voltage ............................................7V Storage Temperature Range ................... 65C to 150C BYP1, BYP2 Pin Voltage ........................................0.6V Lead Temperature (Soldering, 10 sec) .................. 300C SHDN1, SHDN2 Pin Voltage ...................................20V (MSE package only) PIN CONFIGURATION TOP VIEW TOP VIEW BYP2 1 10 OUT2 BYP2 1 10 OUT2 ADJ2 2 9 SHDN2 ADJ2 2 9 SHDN2 11 11 GND 3 8 IN GND 3 8 IN ADJ1 4 7 SHDN1 ADJ1 4 7 SHDN1 BYP1 5 6 OUT1 BYP1 5 6 OUT1 MSE PACKAGE 10-LEAD PLASTIC MSOP DD PACKAGE T = 150C, = 40C/W, = 10C/W JMAX JA JC 10-LEAD (3mm 3mms ) PLASTIC DFN EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB T = 125C, = 40C/W, = 10C/W JMAX JA JC EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3023EDD PBF LT3023EDD TRPBF LAJA 40C to 125C 10-Lead (3mm 3mm) Plastic DFN LT3023IDD PBF LT3023IDD TRPBF LAJA 40C to 125C 10-Lead (3mm 3mm) Plastic DFN LT3023EMSE PBF LT3023EMSE TRPBF LTAHZ 10-Lead Plastic MSOP 40C to 125C LT3023IMSE PBF LT3023IMSE TRPBF LTAHZ 10-Lead Plastic MSOP 40C to 125C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3023EDD LT3023EDD TR LAJA 40C to 125C 10-Lead (3mm 3mm) Plastic DFN LT3023IDD LT3023IDD TR LAJA 40C to 125C 10-Lead (3mm 3mm) Plastic DFN LT3023EMSE LT3023EMSE TR LTAHZ 10-Lead Plastic MSOP 40C to 125C LT3023IMSE LT3023IMSE TR LTAHZ 10-Lead Plastic MSOP 40C to 125C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container. For more information on lead free part marking, go to: