QUIESCENT CURRENT (A) LT3009 Series 3A I , 20mA Q Low Dropout Linear Regulators FEATURES DESCRIPTION n Ultralow Quiescent Current: 3A The LT 3009 Series are micropower, low dropout voltage n Input Voltage Range: 1.6V to 20V (LDO) linear regulators. The devices supply 20mA output n Output Current: 20mA current with a dropout voltage of 280mV. No-load quiescent n Dropout Voltage: 280mV current is 3A. Ground pin current remains at less than n Adjustable Output (V = V = 600mV) 5% of output current as load increases. In shutdown, ADJ OUT(MIN) n Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, quiescent current is less than 1A. 3.3V, 5V The LT3009 regulators optimize stability and transient n Output Tolerance: 2% Over Load, Line and Temperature response with low ESR ceramic capacitors, requiring a n Stable with Low ESR, Ceramic Output Capacitors minimum of only 1F. The regulators do not require the (1F minimum) addition of ESR as is common with other regulators. n Shutdown Current: <1A Internal protection circuitry includes current limiting, n Current Limit Protection thermal limiting, reverse-battery protection and reverse- n Reverse-Battery Protection current protection. n Thermal Limit Protection n The LT3009 Series are ideal for applications that require 8-Lead SC70 and 2mm 2mm DFN Packages moderate output drive capability coupled with ultralow standby power consumption. The device is available in APPLICATIONS xed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V, and as an adjustable device with an output voltage range n Low Current Battery-Powered Systems down to the 600mV reference. The LT3009 is available in n Keep-Alive Power Supplies the 6-lead DFN and 8-lead SC70 packages. n Remote Monitoring L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Utility Meters Technology Corporation. All other trademarks are the property of their respective owners. Hotel Door Locks TYPICAL APPLICATION 3.3V, 20mA Supply with Shutdown Dropout Voltage/Quiescent Current 500 5.0 I = 20mA LOAD 450 4.5 V OUT 3.3V IN OUT 400 4.0 V IN 20mA 3.75V TO 1F 1F 350 3.5 20V LT3009-3.3 DROPOUT 300 VOLTAGE 3.0 SHDN I 250 Q 2.5 GND 200 2.0 150 1.5 3009 TA01a 100 1.0 50 0.5 0 0 50 25 0 25 50 75 100 125 150 TEMPERATURE (C) 3009 TA01b 3009fd 1 DROPOUT VOLTAGE (mV)LT3009 Series ABSOLUTE MAXIMUM RATINGS (Note 1) Operating Junction Temperature Range (Notes 2, 3) IN Pin Voltage .........................................................22V (E, I Grades) ......................................40C to 125C OUT Pin Voltage ......................................................22V Storage Temperature Range ...................65C to 150C Input-to-Output Differential Voltage ........................22V Lead Temperature: Soldering, 10 sec ADJ Pin Voltage ......................................................22V SC8 Package Only ............................................. 300C SHDN Pin Voltage (Note 8) .....................................22V Output Short-Circuit Duration .......................... Inde nite PIN CONFIGURATION TOP VIEW TOP VIEW ADJ/NC* 1 6 GND SHDN 1 8 NC GND 2 7 ADJ/NC* OUT 2 7 5 SHDN GND 3 6 OUT OUT 4 IN 3 GND 4 5 IN SC8 PACKAGE DC PACKAGE 8-LEAD PLASTIC SC70 6-LEAD (2mm s 2mm) PLASTIC DFN T = 125C, = 75C/W TO 95C/W** JMAX JA T = 125C, = 65C/W TO 85C/W** JMAX JA EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB * The ADJ pin is not connected in xed output voltage versions. ** See the Applications Information section. ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3009EDC PBF LT3009EDC TRPBF LCQX 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC PBF LT3009IDC TRPBF LCQX 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009EDC-1.2 PBF LT3009EDC-1.2 TRPBF LDTW 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC-1.2 PBF LT3009IDC-1.2 TRPBF LDTW 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009EDC-1.5 PBF LT3009EDC-1.5 TRPBF LDVB 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC-1.5 PBF LT3009IDC-1.5 TRPBF LDVB 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009EDC-1.8 PBF LT3009EDC-1.8 TRPBF LDKC 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC-1.8 PBF LT3009IDC-1.8 TRPBF LDKC 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009EDC-2.5 PBF LT3009EDC-2.5 TRPBF LDTY 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC-2.5 PBF LT3009IDC-2.5 TRPBF LDTY 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009EDC-3.3 PBF LT3009EDC-3.3 TRPBF LDKD 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC-3.3 PBF LT3009IDC-3.3 TRPBF LDKD 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009EDC-5 PBF LT3009EDC-5 TRPBF LDKF 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3009IDC-5 PBF LT3009IDC-5 TRPBF LDKF 6-Lead (2mm 2mm) Plastic DFN 40C to 125C 3009fd 2