LT3030 Dual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator Fea T Descrip T n Output Current: 750mA/250mA The LT 3030 is a dual, micropower, low noise, low dropout n Low Dropout Voltage: 300mV linear regulator. The device operates with either common n Low Noise: 20V (10Hz to 100kHz) or independent input supplies for each channel, over a RMS n Low Quiescent Current: 120A/75A 1.7V to 20V input voltage range. Output 1/Output 2 supply n Wide Input Voltage Range: 1.7V to 20V 750mA/250mA respectively with a typical dropout voltage n Adjustable Output: 1.220V Reference Voltage of 300mV. With an external 10nF bypass capacitor, output n Shutdown Quiescent Current: <1A noise is only 20V over a 10Hz to 100kHz bandwidth. RMS n Stable with 10F/3.3F Minimum Output Capacitor Designed for use in battery-powered systems, the low n Stable with Ceramic, Tantalum or Aluminum 120A/75A quiescent current makes it an ideal choice. Electrolytic Capacitors In shutdown, quiescent current drops to less than 1A. n Precision Threshold for Shutdown Logic or UVLO Function Shutdown control is independent for each channel and n PWRGD Flag for each Output its precision logic threshold allows for voltage lockout n Reverse Battery and Reverse Output-to-Input functionality. The LT3030 includes a PWRGD flag for each Protection channel to indicate output regulation. n Current Limit with Foldback and Thermal Shutdown The LT3030 optimizes stability and transient response with n Thermally Enhanced 20-Lead TSSOP and low ESR ceramic output capacitors, requiring a minimum 28-Lead (4mm 5mm) QFN Packages of only 10F/3.3F. a T Internal circuitry provides reverse-battery protection, n reverse-current protection, current limiting with foldback General Purpose Linear Regulator n and thermal shutdown with hysteresis. The adjustable Battery-Powered Systems n output voltage device has a 1.220V reference voltage. Microprocessor Core/Logic Supplies n The LT3030 is offered in the thermally enhanced 20-lead Post Regulator for Switching Supplies n TSSOP and 28-lead, low profile (4mm 5mm 0.75mm) Tracking/Sequencing Power Supplies QFN packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical a T 2.5V to 1.8V/1.5V Application Dropout Voltage vs Load Current IN 500 V V IN OUT1 IN1 OUT1 T = 25C J 2.5V 1.8V 450 10nF 10F 3.3F 750mA IN2 LT3030 400 113k SHDN1 BYP1 1% 350 SHDN2 ADJ1 300 237k 1M 1M OUT2 1% 250 PWRGD1 200 OUT1 V OUT2 PWRGD2 OUT2 150 1.5V 10nF 3.3F 250mA 100 54.9k BYP2 50 1% 0 ADJ2 GND 0 75 150 225 300 375 450 525 600 675 750 237k 3030 TA01a OUTPUT CURRENT (mA) 1% 3030 TA01b 3030fa 1 For more information www.linear.com/LT3030 DROPOUT VOLTAGE (mV) ion pplica ions pplica ion uresLT3030 a T e Maxi Mu M r a T (Note 1) IN1, IN2 Pin Voltage ................................................22V Operating Junction Temperature (Notes 2, 12) OUT1, OUT2 Pin Voltage .........................................22V E-/I-Grade .......................................... 40C to 125C Input-to-Output Differential Voltage ........................22V H-Grade ............................................. 40C to 150C ADJ1, ADJ2 Pin Voltage ............................................9V MP-Grade .......................................... 55C to 150C BYP1, BYP2 Pin Voltage ........................................0.6V Storage Temperature Range SHDN1, SHDN2 Pin Voltage ....................................22V QFN/TSSOP Package ............................. 65C to 150C PWRGD1, PWRGD2 Pin Voltage ....................22V, 0.3V Lead Temperature (Soldering, 10 sec) Output Short-Circuit Duration .......................... Indefinite (TSSOP Only) ........................................................300C p c F T TOP VIEW TOP VIEW ADJ1 1 20 SHDN1 28 27 26 25 24 23 BYP1 2 19 PWRGD1 OUT1 1 22 PWRGD1 OUT1 3 18 IN1 OUT1 2 21 IN1 OUT1 4 17 IN1 GND 3 20 IN1 GND 5 16 GND GND 4 19 GND 21 29 GND GND GND 6 15 GND GND 5 18 GND OUT2 7 14 IN2 GND 6 17 IN2 OUT2 7 16 IN2 OUT2 8 13 IN2 OUT2 8 15 PWRGD2 BYP2 9 12 PWRGD2 9 10 11 12 13 14 ADJ2 10 11 SHDN2 FE PACKAGE 20-LEAD PLASTIC TSSOP UFD PACKAGE T = 150C, = 28C/W, , = 10C/W JMAX JA JC 28-LEAD (4mm 5mm) PLASTIC QFN EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB T = 125C, = 33C/W, , = 3.4C/W JMAX JA JC EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB o r D i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3030EUFD PBF LT3030EUFD TRPBF 3030 28-Lead (4mm 5mm) Plastic QFN 40C to 125C LT3030IUFD PBF LT3030IUFD TRPBF 3030 28-Lead (4mm 5mm) Plastic QFN 40C to 125C LT3030HUFD PBF LT3030HUFD TRPBF 3030 28-Lead (4mm 5mm) Plastic QFN 40C to 150C LT3030EFE PBF LT3030EFE TRPBF LT3030FE 20-Lead Plastic TSSOP 40C to 125C LT3030IFE PBF LT3030IFE TRPBF LT3030FE 20-Lead Plastic TSSOP 40C to 125C LT3030HFE PBF LT3030HFE TRPBF LT3030FE 20-Lead Plastic TSSOP 40C to 150C LT3030MPFE PBF LT3030MPFE TRPBF LT3030FE 20-Lead Plastic TSSOP 55C to 150C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. 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