LT3024 Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulator FEATURES DESCRIPTION n Low Noise: 20V (10Hz to 100kHz) The LT 3024 is a dual, micropower, low noise, low dropout RMS n Low Quiescent Current: 30A/Output regulator. With an external 0.01F bypass capacitor, output n Wide Input Voltage Range: 1.8V to 20V noise drops to 20V over a 10Hz to 100kHz bandwidth. RMS n Output Current: 100mA/500mA Designed for use in battery-powered systems, the low 30A n Very Low Shutdown Current: <0.1A quiescent current per output makes it an ideal choice. In n Low Dropout Voltage: 300mV at 100mA/500mA shutdown, quiescent current drops to less than 0.1A. n Adjustable Outputs from 1.22V to 20V Shutdown control is independent for each output, allowing n Stable with 1F/3.3F Output Capacitor for exibility in power management. The device is capable n Stable with Aluminum, Tantalum or of operating over an input voltage range of 1.8V to 20V. The Ceramic Capacitors device can supply 100mA of output current from Output n Reverse Battery Protected 2 with a dropout voltage of 300mV. Output 1 can supply n No Reverse Current 500mA of output current with a dropout voltage of 300mV. n No Protection Diodes Needed Quiescent current is well controlled in dropout. n Overcurrent and Overtemperature Protected The LT3024 regulator is stable with output capacitors as n Thermally Enhanced 16-Lead TSSOP and 12-Lead low as 1F for the 100mA output and 3.3F for the 500mA (4mm 3mm) DFN Packages output. Small ceramic capacitors can be used without the series resistance required by other regulators. APPLICATIONS Internal protection circuitry includes reverse-battery n Cellular Phones protection, current limiting, thermal limiting and reverse n Pagers current protection. The device is available as an adjust- n Battery-Powered Systems able device with a 1.22V reference voltage. The LT3024 n Frequency Synthesizers regulator is available in the thermally enhanced 16-lead n Wireless Modems TSSOP and 12-lead, low pro le (4mm 3mm 0.75mm) L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other DFN packages. trademarks are the property of their respective owners. TYPICAL APPLICATION 3.3V/2.5V Low Noise Regulators 10Hz to 100kHz Output Noise 3.3V AT 500mA IN OUT1 20V NOISE RMS V IN SHDN1 0.01F 10F 422k 3.7V TO 1F SHDN2 BYP1 20V ADJ1 249k LT3024 V OUT 20V RMS 100V/DIV 2.5V AT 100mA OUT2 20V NOISE RMS 0.01F 10F 261k BYP2 ADJ2 GND 249k 3024 TA01b 3024 TA01a 3024fa 1LT3024 ABSOLUTE MAXIMUM RATINGS (Note 1) IN Pin Voltage .........................................................20V Operating Junction Temperature Range OUT1, OUT2 Pin Voltage .........................................20V (Note 2) ............................................. 40C to 125C Input-to-Output Differential Voltage ........................20V Storage Temperature Range ADJ1, ADJ2 Pin Voltage ............................................7V FE Package ........................................ 65C to 150C BYP1, BYP2 Pin Voltage ........................................0.6V DE Package ........................................ 65C to 125C SHDN1, SHDN2 Pin Voltage ...................................20V Lead Temperature (Soldering, 10 sec) .................. 300C Output Short-Circut Duration ........................... Inde nite (FE package only) PIN CONFIGURATION TOP VIEW TOP VIEW 1 GND 16 GND BYP1 1 12 ADJ1 2 BYP1 15 ADJ1 OUT1 2 11 SHDN1 3 OUT1 14 SHDN1 OUT1 3 10 IN 4 OUT1 13 IN 13 17 5 GND 4 9 IN GND 12 IN 6 OUT2 11 SHDN2 OUT2 5 8 SHDN2 7 BYP2 10 ADJ2 BYP2 6 7 ADJ2 8 GND 9 GND DE12 PACKAGE 12-LEAD (4mm s 3mm ) PLASTIC DFN FE PACKAGE T = 150C, = 40C/W, = 10C/W 16-LEAD PLASTIC TSSOP JMAX JA JC EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB T = 150C, = 38C/W, = 8C/W JMAX JA JC EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3024EDE PBF LT3024EDE TRPBF 3024 40C to 125C 12-Lead (4mm 3mm) Plastic DFN LT3024IDE PBF LT3024IDE TRPBF 3024 40C to 125C 12-Lead (4mm 3mm) Plastic DFN LT3024EFE PBF LT3024EFE TRPBF 3024EFE 16-Lead Plastic TSSOP 40C to 125C LT3024IFE PBF LT3024IFE TRPBF 3024IFE 16-Lead Plastic TSSOP 40C to 125C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3024EDE LT3024EDE TR 3024 40C to 125C 12-Lead (4mm 3mm) Plastic DFN LT3024IDE LT3024IDE TR 3024 40C to 125C 12-Lead (4mm 3mm) Plastic DFN LT3024EFE LT3024EFE TR 3024EFE 16-Lead Plastic TSSOP 40C to 125C LT3024IFE LT3024IFE TR 3024IFE 16-Lead Plastic TSSOP 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: