QUIESCENT CURRENT (A) LT3008 Series 3A I , 20mA, 45V Q Low Dropout Linear Regulators FEATURES DESCRIPTION n Ultralow Quiescent Current: 3A The LT 3008 series are micropower, low dropout voltage n Input Voltage Range: 2.0V to 45V (LDO) linear regulators. The devices supply 20mA output n Output Current: 20mA current with a dropout voltage of 300mV. No-load quiescent n Dropout Voltage: 300mV 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, 3.3V, 5V quiescent current is less than 1A. n Output Tolerance: 2% Over Load, Line and The LT3008 regulators optimize stability and transient Temperature response with low ESR ceramic capacitors, requiring a n Stable with Low ESR, Ceramic Output Capacitors minimum of only 2.2F. The regulators do not require (2.2F Minimum) the 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 LT3008 series are ideal for applications that require TSOT-23 and 2mm 2mm DFN Packages moderate output drive capability coupled with ultralow APPLICATIONS standby power consumption. The device is available in xed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and n Automotive 5V, and an adjustable version with an output voltage range n Low Current Battery-Powered Systems of 0.6V to 44.5V. The LT3008 is available in the thermally n Keep-Alive Power Supplies enhanced 6-lead DFN and 8-lead TSOT-23 packages. n Remote Monitoring n 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. n Low Power Industrial Applications TYPICAL APPLICATION 3.3V, 20mA Supply with Shutdown Dropout Voltage/Quiescent Current 500 6 I = 20mA LOAD DROPOUT 450 V OUT VOLTAGE 5 3.3V IN OUT 400 V IN 20mA 3.8V TO 2.2F 1F 350 45V LT3008-3.3 4 300 SHDN SENSE 3 250 I Q GND 200 2 150 3008 TA01a 100 1 50 0 0 50 25 0 25 50 75 100 125 150 TEMPERATURE (C) 3008 TA01b 3008fc 1 DROPOUT VOLTAGE (mV)LT3008 Series (Note 1) ABSOLUTE MAXIMUM RATINGS IN Pin Voltage .........................................................50V Operating Junction Temperature Range (Notes 2, 3) OUT Pin Voltage ......................................................50V E, I Grade ...........................................40C to 125C Input-to-Output Differential Voltage ........................50V MP Grade ...........................................55C to 125C ADJ Pin Voltage ......................................................50V Storage Temperature Range ...................65C to 150C SENSE Pin Voltage ..................................................50V Lead Temperature: Soldering, 10 sec SHDN Pin Voltage (Note 8) .....................................50V TS8 Package Only ............................................. 300C Output Short-Circuit Duration .......................... Inde nite PIN CONFIGURATION TOP VIEW TOP VIEW **SENSE/ADJ 1 6 GND 8 NC SHDN 1 GND 2 7 ADJ/SENSE** OUT 2 7 5 SHDN GND 3 6 OUT OUT 3 4 IN 5 IN GND 4 TS8 PACKAGE DC PACKAGE 8-LEAD PLASTIC TSOT-23 6-LEAD (2mm s 2mm) PLASTIC DFN T = 125C, = 65C/W TO 85C/W* JMAX JA T = 125C, = 65C/W TO 85C/W* JMAX JA EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB * See the Applications Information Section. ** SENSE for Fixed Voltage Output Versions. ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3008EDC PBF LT3008EDC TRPBF LDPS 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC PBF LT3008IDC TRPBF LDPS 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008EDC-1.2 PBF LT3008EDC-1.2 TRPBF LFHC 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC-1.2 PBF LT3008IDC-1.2 TRPBF LFHC 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008EDC-1.5 PBF LT3008EDC-1.5 TRPBF LFHF 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC-1.5 PBF LT3008IDC-1.5 TRPBF LFHF 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008EDC-1.8 PBF LT3008EDC-1.8 TRPBF LFHH 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC-1.8 PBF LT3008IDC-1.8 TRPBF LFHH 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008EDC-2.5 PBF LT3008EDC-2.5 TRPBF LFHK 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC-2.5 PBF LT3008IDC-2.5 TRPBF LFHK 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008EDC-3.3 PBF LT3008EDC-3.3 TRPBF LFHN 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC-3.3 PBF LT3008IDC-3.3 TRPBF LFHN 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008EDC-5 PBF LT3008EDC-5 TRPBF LFHQ 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008IDC-5 PBF LT3008IDC-5 TRPBF LFHQ 6-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3008ETS8 PBF LT3008ETS8 TRPBF LTDSX 8-Lead Plastic TSOT-23 40C to 125C 3008fc 2