LT3009 LINER
Document overview
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Technical content
TEMPERATURE (°C) DROPOUT VOLTAGE (mV) QUIESCENT CURRENT (μA)400
3009 TA01b
4.0 350 3.5 2.0 1.0 0.5 5.0 450 4.5 3.0 2.5 1.5 IQ –50 –25 0 25 50 75 100 125 150 ILOAD = 20mA DROPOUT VOLTAGE TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
3µA IQ, 20mA Low Dropout Linear Regulators The L T®3009 Series are micropower , low dropout voltage (LDO) linear regulators. The devices supply 20mA out- put current with a dropout voltage of 280mV . No-load quiescent current is 3μA. Ground pin current remains at less than 5% of output current as load increases. In shutdown, quiescent current is less than 1μA. The L T3009 regulators optimize stability and transient response with low ESR ceramic capacitors, requiring a minimum of only 1μF . The regulators do not require the addition of ESR as is common with other regulators. Internal protection circuitry includes current limiting, thermal limiting, reverse-battery protection and reverse- current protection. The L T3009 Series are ideal for applications that re- quire moderate output drive capability coupled with ultralow standby power consumption. The device is available in fi 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 down to the 600mV refer- ence. The L T3009 is available in the 6-lead DFN and 8-lead SC70 packages. L, L T , L TC and L TM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 3.3V , 20mA Supply with Shutdown n Ultralow Quiescent Current: 3μA n Input Voltage Range: 1.6V to 20V n Output Current: 20mA n Dropout Voltage: 280mV n Adjustable Output (VADJ = VOUT(MIN) = 600mV) n Fixed Output Voltages: 1.2V , 1.5V , 1.8V , 2.5V , 3.3V , 5V n Output Tolerance: ±2% Over Load, Line and Temperature n Stable with Low ESR, Ceramic Output Capacitors (1μF minimum) n Shutdown Current: <1μA n Current Limit Protection n Reverse-Battery Protection n Thermal Limit Protection n 8-Lead SC70 and 2mm × 2mm DFN Packages n Low Current Battery-Powered Systems n Keep-Alive Power Supplies n Remote Monitoring Utility Meters Hotel Door Locks IN SHDN 1μF
3009 TA01a
3.75V TO 20V GND LT3009-3.3 VOUT 3.3V 20mA1μF Dropout Voltage/Quiescent Current
(Note 1) TOP VIEW GND SHDN IN ADJ/NC* OUT OUT DC PACKAGE 6-LEAD (2mm s 2mm) PLASTIC DFN TJMAX = 125°C, θJA = 65°C/W TO 85°C/W** EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB SHDN 1 GND 2 GND 3 GND 4 8 NC
7 ADJ/NC*
6 OUT
TJMAX = 125°C, θJA = 75°C/W TO 95°C/W** Operating Junction Temperature Range (Notes 2, 3) Lead Temperature: Soldering, 10 sec ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE L T3009EDC#PBF L T3009EDC#TRPBF LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC#PBF L T3009IDC#TRPBF LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-1.2#PBF L T3009EDC-1.2#TRPBF LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-1.2#PBF L T3009IDC-1.2#TRPBF LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-1.5#PBF L T3009EDC-1.5#TRPBF LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-1.5#PBF L T3009IDC-1.5#TRPBF LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-1.8#PBF L T3009EDC-1.8#TRPBF LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-1.8#PBF L T3009IDC-1.8#TRPBF LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-2.5#PBF L T3009EDC-2.5#TRPBF LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-2.5#PBF L T3009IDC-2.5#TRPBF LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-3.3#PBF L T3009EDC-3.3#TRPBF LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-3.3#PBF L T3009IDC-3.3#TRPBF LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-5#PBF L T3009EDC-5#TRPBF LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-5#PBF L T3009IDC-5#TRPBF LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C * The ADJ pin is not connected in fi xed output voltage versions. ** See the Applications Information section.
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE L T3009ESC8#PBF L T3009ESC8#TRPBF LCQY 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-1.2#PBF L T3009ESC8-1.2#TRPBF LDTX 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-1.5#PBF L T3009ESC8-1.5#TRPBF LDVC 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-1.8#PBF L T3009ESC8-1.8#TRPBF LDKG 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-2.5#PBF L T3009ESC8-2.5#TRPBF LDTZ 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-3.3#PBF L T3009ESC8-3.3#TRPBF LDKH 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-5#PBF L T3009ESC8-5#TRPBF LDKJ 8-Lead Plastic SC70 –40°C to 125°C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE L T3009EDC L T3009EDC#TR LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC L T3009IDC#TR LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-1.2 L T3009EDC-1.2#TR LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-1.2 L T3009IDC-1.2#TR LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-1.5 L T3009EDC-1.5#TR LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-1.5 L T3009IDC-1.5#TR LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-1.8 L T3009EDC-1.8#TR LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-1.8 L T3009IDC-1.8#TR LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-2.5 L T3009EDC-2.5#TR LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-2.5 L T3009IDC-2.5#TR LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-3.3 L T3009EDC-3.3#TR LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-3.3 L T3009IDC-3.3#TR LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009EDC-5 L T3009EDC-5#TR LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009IDC-5 L T3009IDC-5#TR LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C L T3009ESC8 L T3009ESC8#TR LCQY 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-1.2 L T3009ESC8-1.2#TR LDTX 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-1.5 L T3009ESC8-1.5#TR LDVC 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-1.8 L T3009ESC8-1.8#TR LDKG 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-2.5 L T3009ESC8-2.5#TR LDTZ 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-3.3 L T3009ESC8-3.3#TR LDKH 8-Lead Plastic SC70 –40°C to 125°C L T3009ESC8-5 L T3009ESC8-5#TR LDKJ 8-Lead Plastic SC70 –40°C to 125°C Consult L TC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container . For more information on lead free part marking, go to: http://www.linear .com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear .com/tapeandreel/ ORDER INFORMATION
PARAMETER CONDITIONS MIN TYP MAX UNITS Operating Voltage l 1.6 20 V Regulated Output Voltage (Note 4) L T3009-1.2: V IN = 1.7V , ILOAD = 100μA 1.7V < VIN < 20V , 1μA < ILOAD < 20mA l 1.188 1.176 1.2 1.2 1.212 1.224 V V L T3009-1.5: V IN = 2V , ILOAD = 100μA 2V < VIN < 20V , 1μA < ILOAD < 20mA l 1.485 1.470 1.5 1.5 1.515 1.530 V V L T3009-1.8: V IN = 2.3V , ILOAD = 100μA 2.3V < VIN < 20V , 1μA < ILOAD < 20mA l 1.782 1.764 1.8 1.8 1.818 1.836 V V L T3009-2.5: V IN = 3V , ILOAD = 100μA 3V < VIN < 20V , 1μA < ILOAD < 20mA l 2.475 2.45 2.5 2.5 2.525 2.55 V V L T3009-3.3: VIN = 3.8V , ILOAD = 100μA 3.8V < VIN < 20V , 1μA < ILOAD < 20mA l 3.267 3.234 3.3 3.3 3.333 3.366 V V L T3009-5: V IN = 5.5V , ILOAD = 100μA 3.8V < VIN < 20V , 1μA < ILOAD < 20mA l 4.950 4.900 5.050 5.100 V V ADJ Pin Voltage (Notes 3, 4) V IN = 1.6V , ILOAD = 100μA 1.6V < VIN < 20V , 1μA < ILOAD < 20mA l 594 588 600 600 606 612 mV mV Line Regulation (Note 3) L T3009-1.2: ΔV IN = 1.7V to 20V , ILOAD = 1mA L T3009-1.5: ΔVIN = 2.0V to 20V , ILOAD = 1mA L T3009-1.8: ΔVIN = 2.3V to 20V , ILOAD = 1mA L T3009-2.5: ΔVIN = 3.0V to 20V , ILOAD = 1mA L T3009-3.3: ΔVIN = 3.8V to 20V , ILOAD = 1mA L T3009-5: ΔVIN = 5.5V to 20V , ILOAD = 1mA L T3009: ΔVIN = 1.6V to 20V , ILOAD = 1mA l l l l l l l 0.8 1.0 1.2 1.7 2.2 3.3 0.4 3.0 3.8 4.5 6.3 8.3 12.5 1.5 mV mV mV mV mV mV mV Load Regulation (Note 3) L T3009-1.2: V IN = 1.7V , ILOAD = 1μA to 20mA L T3009-1.5: VIN = 2V , ILOAD = 1μA to 20mA L T3009-1.8: VIN = 2.3V , ILOAD = 1μA to 20mA L T3009-2.5: VIN = 3V , ILOAD = 1μA to 20mA L T3009-3.3: VIN = 3.8V , ILOAD = 1μA to 20mA L T3009-5: V IN = 5.5V , ILOAD = 1μA to 20mA L T3009: V IN = 1.6V , ILOAD = 1μA to 20mA l l l l l l l 1.4 1.8 2.1 2.9 3.9 5.8 0.7 7.5 9.0 12.5 16.5 mV mV mV mV mV mV mV Dropout Voltage V IN = VOUT(NOMINAL) (Notes 5, 6) ILOAD = 100μA ILOAD = 100μA l 115 180 250 mV mV ILOAD = 1mA ILOAD = 1mA l 170 250 350 mV mV ILOAD = 10mA ILOAD = 10mA l 250 310 410 mV mV ILOAD = 20mA ILOAD = 20mA l 280 350 450 mV mV Quiescent Current (Notes 6, 7) I LOAD = 0μA ILOAD = 0μA l μA μA GND Pin Current VIN = VOUT(NOMINAL) + 0.5V (Notes 6, 7) ILOAD = 0μA ILOAD = 100μA ILOAD = 1mA ILOAD = 10mA ILOAD = 20mA l l l l l 200 450 500 1000 μA μA μA μA μA ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TJ = 25°C. (Note 2)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The L T3009 regulators are tested and specifi ed under pulse load conditions such that T J ≈ TA. The L T3009E is 100% tested at TA = 25°C. Performance at –40°C and 125°C is assured by design, characterization and correlation with statistical process controls. The L T3009I is guaranteed over the full –40°C to 125°C operating junction temperature range. Note 4: Operating conditions are limited by maximum junction temperature. The regulated output voltage specifi cation will not apply for all possible combinations of input voltage and output current. When operating at the maximum input voltage, the output current range must be limited. When operating at the maximum output current, the input voltage must be limited. Note 5: Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specifi ed output current. In dropout, the output voltage equals (V IN – VDROPOUT). For the L T3009-1.2, dropout voltage will be limited by the minimum input voltage under some voltage/ load conditions. Note 6: To satisfy minimum input voltage requirements, the L T3009 adjustable version is tested and specifi ed for these conditions with an external resistor divider (61.9k bottom, 280k top) which sets V OUT to 3.3V . The external resistor divider adds 9.69μA of DC load on the output. This external current is not factored into GND pin current. Note 7: GND pin current is tested with V IN = VOUT(NOMINAL) + 0.5V and a current source load. GND pin current will increase in dropout. For the fi xed output voltage versions, an internal resistor divider will add to the GND pin current (∼2μA for the L T3009-5, ∼1μA for the L T3009-1.2, L T3009-1.5, L T3009-1.8, L T3009-2.5 and L T3009-3.3). See the GND Pin Current curves in the Typical Performance Characteristics section. Note 8: The SHDN pin can be driven below GND only when tied to the IN pin directly or through a pull-up resistor . If the SHDN pin is driven below GND by more than –0.3V while IN is powered, the output will turn on. Note 9: Output noise is listed for the adjustable version with the ADJ pin connected to the OUT pin. See the RMS Output Noise vs Load Current curve in the Typical Performance Characteristics Section. PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage Noise (Note 9) C OUT = 1μF , ILOAD = 20mA, BW = 10Hz to 100kHz 150 μV RMS ADJ Pin Bias Current l –10 0.3 10 nA Shutdown Threshold V OUT = Off to On VOUT = On to Off l l 0.2 0.66 0.36 1.5 V V SHDN Pin Current V SHDN = 0V , VIN = 20V VSHDN = 20V , VIN = 20V l l 0.5 1.6 μA μA Quiescent Current in Shutdown V IN = 6V , VSHDN = 0V l <1 μA Ripple Rejection (Note 3) V IN – VOUT = 1.5V , VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 20mA L T3009 L T3009-1.2 L T3009-1.5 L T3009-1.8 L T3009-2.5 L T3009-3.3 L T3009-5 55.5 dB dB dB dB dB dB dB Current Limit V IN = 20V , VOUT = 0 VIN = VOUT(NOMINAL) + 1V , ΔVOUT = – 5% l 22 60 mA mA Input Reverse Leakage Current V IN = –20V , VOUT = 0 l 200 350 μA Reverse Output Current V OUT = 1.2V , VIN = 0 0.6 10 μA ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TJ = 25°C. (Note 2)
0.2 0.4 0.6 0.8 1.2 1.4 1.6 TEMPERATURE (°C) MINIMUM INPUT VOLTAGE (V)
3009 G03
ILOAD = 20mA –50 –25 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) DROPOUT VOL TAGE (mV) 150 200 250 10 20 450 100 51 5 300 350 400
3009 G01
TA = 125°C TA = 25°C ILOAD = 20mA TEMPERATURE (°C) DROPOUT VOL TAGE (mV) 150 200 250 450 100 300 350 400
3009 G02
1mA 100μA –50 –25 0 25 50 75 100 125 150 TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage Dropout Voltage Minimum Input Voltage ADJ Pin Voltage TEMPERATURE (°C) ADJ PIN VOLTAGE (V)
3009 G04
0.596 0.608 0.610 0.612 0.590 0.592 0.604 0.600 0.594 0.606 0.588 0.602 0.598 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA TA = 25°C, unless otherwise noted. Output Voltage L T3009-1.2 Output Voltage L T3009-1.5 TEMPERATURE (°C) OUTPUT VOLTAGE (V)
3009 G27
1.192 1.216 1.220 1.224 1.180 1.184 1.208 1.200 1.188 1.212 1.176 1.204 1.196 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA Output Voltage L T3009-2.5 Output Voltage L T3009-3.3 TEMPERATURE (°C) OUTPUT VOLTAGE (V)
3009 G06
3.278 3.344 3.355 3.366 3.245 3.256 3.322 3.300 3.267 3.333 3.234 3.311 3.289 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA Output Voltage L T3009-1.8 TEMPERATURE (°C) OUTPUT VOLTAGE (V)
3009 G05
1.788 1.824 1.830 1.836 1.770 1.776 1.812 1.800 1.782 1.818 1.764 1.806 1.794 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA TEMPERATURE (°C) OUTPUT VOLTAGE (V)
3009 G28
1.490 1.520 1.525 1.530 1.475 1.480 1.510 1.500 1.485 1.515 1.470 1.505 1.495 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA TEMPERATURE (°C) OUTPUT VOLTAGE (V)
3009 G29
2.47 2.53 2.54 2.55 2.51 2.49 2.46 2.52 2.45 2.50 2.48 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA
TYPICAL PERFORMANCE CHARACTERISTICSTA = 25°C, unless otherwise noted. ADJ Pin Bias Current Adjustable Version Quiescent Current Output Voltage L T3009-5 TEMPERATURE (°C) OUTPUT VOLTAGE (V)
3009 G07
5.000 5.100 4.925 4.950 5.050 4.975 4.900 5.075 5.025 –50 –25 0 25 50 75 100 125 150 ILOAD = 100μA –10 TEMPERATURE (°C) ADJ PIN BIAS CURRENT (nA)
3009 G08
–50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) QUIESCENT CURRENT (μA)
3009 G09
–50 –25 0 25 50 75 100 125 150 Quiescent Current Quiescent Current GND Pin Current L T3009-1.2 200 450 500 2 4 6 100 350 150 400 300 250 1 3 8 105 7 9
3009 G31
INPUT VOLTAGE (V) GND PIN CURRENT (μA) RL = 60Ω, IL = 20mA RL = 120Ω, IL = 10mA RL = 1.2k, IL = 1mA RL = 12k, IL = 100μA 2 4 6 1 3 8 105 7 9
3009 G10
INPUT VOLTAGE (V) QUIESCENT CURRENT (μA) LT3009-1.2 LT3009-1.5 LT3009-1.8 2 4 6 1 3 8 105 7 9
3009 G30
INPUT VOLTAGE (V) QUIESCENT CURRENT (μA) LT3009-2.5 LT3009-3.3 LT3009-5
LOAD (mA) 0.001 GND CURRENT (μA)10 100 1000 0.01 0.1 1 10 100
3009 G14
VIN = 3.8V VOUT = 3.3V GND Pin Current vs ILOAD GND Pin Current L T3009-5 GND Pin Current L T3009-3.3 02 4 61 3 8 105 7 9
3009 G12
INPUT VOLTAGE (V) GND PIN CURRENT (μA) RL = 165Ω, IL = 20mA RL = 330Ω, IL = 10mA RL = 3.3k, IL = 1mA 200 450 500 100 350 150 400 300 250 RL = 33k, IL = 100μA 200 450 2 4 6 100 350 150 400 300 250 1 3 8 105 7 9
3009 G13
INPUT VOLTAGE (V) GND PIN CURRENT (μA) RL = 250Ω, IL = 20mA RL = 500Ω, IL = 10mA RL = 5k, IL = 1mA RL = 50k, IL = 100μA TYPICAL PERFORMANCE CHARACTERISTICSTA = 25°C, unless otherwise noted. GND Pin Current L T3009-1.5 200 450 500 2 4 6 100 350 150 400 300 250 1 3 8 105 7 9
3009 G32
INPUT VOLTAGE (V) GND PIN CURRENT (μA) RL = 75Ω, IL = 20mA RL = 150Ω, IL = 10mA RL = 1.5k, IL = 1mA RL = 15k, IL = 100μA GND Pin Current L T3009-1.8 200 450 500 2 4 6 100 350 150 400 300 250 1 3 8 105 7 9
3009 G11
INPUT VOLTAGE (V) GND PIN CURRENT (μA) RL = 90Ω, IL = 20mA RL = 180Ω, IL = 10mA RL = 1.8k, IL = 1mA RL = 18k, IL = 100μA GND Pin Current L T3009-2.5 200 450 500 2 4 6 100 350 150 400 300 250 1 3 8 105 7 9
3009 G33
INPUT VOLTAGE (V) GND PIN CURRENT (μA) RL = 125Ω, IL = 20mA RL = 250Ω, IL = 10mA RL = 2.5k, IL = 1mA RL = 25k, IL = 100μA
SHDN PIN INPUT CURRENT (nA) 300 400 500 200 100 250 350 450 150
3009 G16
SHDN PIN VOLTAGE (V) 4 8 12 16 2020 6 10 14 18 SHDN Pin Thresholds SHDN Pin Input Current SHDN Pin Input Current Current Limit 200 600 400 800 1000 1200 1400 1600 TEMPERATURE (°C) SHDN PIN INPUT CURRENT (nA)
3009 G17
–50 –25 0 25 50 75 100 125 150 VSHDN = 20V TEMPERATURE (°C) CURRENT LIMIT (mA)
3009 G18
–50 –25 0 25 50 75 100 125 150 VIN = 1.6V VIN = 20V 0.2 0.6 0.4 0.8 1.0 1.2 1.4 TEMPERATURE (°C)
3009 G15
–50 –25 0 25 50 75 100 125 150 SHDN PIN THRESHOLD VOLTAGE (V) OFF TO ON ON TO OFF Reverse Output Current Input Ripple Rejection TYPICAL PERFORMANCE CHARACTERISTICSTA = 25°C, unless otherwise noted. TEMPERATURE (°C) REVERSE OUTPUT CURRENT (μA)
3009 G19
–50 –25 0 25 50 75 100 125 150 OUT = ADJ = 1.2V IN = SHDN = GND FREQUENCY (Hz) INPUT RIPPLE REJECTION (dB)
3009 G20
4.7μF 1μF 10 100 1k 10k 100k 1M VIN = 2V + 50mVRMS VOUT = 600mV ILOAD = 20mA
TYPICAL PERFORMANCE CHARACTERISTICSTA = 25°C, unless otherwise noted. Input Ripple Rejection Load Regulation Output Noise Spectral Density RMS Output Noise vs Load Current (10Hz to 100kHz) T ransient Response T ransient Response –1.0 –0.5 0.5 1.0 1.5 2.0 2.5 3.0 TEMPERATURE (°C) LOAD REGULATION (mV)
3009 G22
–50 –25 0 25 50 75 100 125 150 ΔIL = 1μA TO 20mA VOUT = 600mV VIN = 1.6V TEMPERATURE (°C) INPUT RIPPLE REJECTION (dB)
3009 G21
–50 –25 0 25 50 75 100 125 150 VIN = VOUT (NOMINAL) + 1V + 0.5VP-P RIPPLE AT f = 120Hz ILOAD = 20mA ILOAD (mA) 0.001 500 600 700
3009 G24
0.01 0.1 1 100 200 100 OUTPUT NOISE (μVRMS) 600mV 1.8V 1.2V 1.5V 2.5V 3.3V FREQUENCY (Hz) 0.1 OUTPUT NOISE SPECTRAL DENSITY (μV√Hz) 100
3009 G23
3.3V 2.5V 1.8V 1.5V 1.2V 0.6V 500μs/DIV VOUT 50mV/DIV IOUT 20mA/DIV
3009 G25
IOUT = 1mA TO 20mA VIN = 5.5V VOUT = 5V COUT = 1μF 500μs/DIV VOUT 50mV/DIV IOUT 20mA/DIV
3009 G26
IOUT = 1mA TO 20mA VIN = 5.5V VOUT = 5V COUT = 4.7μF
SHDN (Pin 1/Pin 5): Shutdown. Pulling the SHDN pin low puts the L T3009 into a low power state and turns the output off. If unused, tie the SHDN pin to V IN. The L T3009 does not function if the SHDN pin is not connected. The SHDN pin cannot be driven below GND unless tied to the IN pin. If the SHDN pin is driven below GND while IN is powered, the output will turn on. SHDN pin logic cannot be referenced to a negative rail. GND (Pins 2, 3, 4/Pin 6): Ground. Connect the bottom of the resistor divider that sets output voltage directly to GND for the best regulation. IN (Pin 5/Pin 4): Input. The IN pin supplies power to the device. The L T3009 requires a bypass capacitor at IN if the device is more than six inches away from the main input fi lter capacitor . In general, the output impedance of a battery rises with frequency, so it is advisable to include a bypass capacitor in battery-powered circuits. A bypass capacitor in the range of 0.1μF to 10μF will suf- fi ce. The L T3009 withstands reverse voltages on the IN pin with respect to ground and the OUT pin. In the case of a reversed input, which occurs with a battery plugged in backwards, the L T3009 acts as if a large resistor is in series with its input. Limited reverse current fl ows into the L T3009 and no reverse voltage appears at the load. The device protects both itself and the load. OUT (Pin 6/Pins 2, 3): Output. This pin supplies power to the load. Use a minimum output capacitor of 1μF to prevent oscillations. Large load transient applications require larger output capacitors to limit peak voltage transients. See the Applications Information section for more information on output capacitance and reverse output characteristics. ADJ (Pin 7/Pin 1): Adjust. This pin is the error amplifi er’s inverting terminal. Its 300pA typical input bias current fl ows out of the pin (see curve of ADJ Pin Bias Current vs Temperature in the Typical Performance Characteristics section). The ADJ pin voltage is 600mV referenced to GND and the output voltage range is 600mV to 19.5V . This pin is not connected in the fi xed output voltage versions. NC (Pins 7,8/Pin 1): No Connect. For the adjustable voltage version, Pin 8 is an NC pin in the SC70 package. For the fi xed voltage versions, Pin 7 and Pin 8 are NC pins in the SC70 package, and Pin 1 is an NC pin in the DFN package. NC pins are not tied to any internal circuitry. They may be fl oated, tied to V IN or tied to GND. Exposed Pad (Pin 7, DFN Package Only): Ground. The Exposed Pad (backside) of the DFN package is an electri- cal connection to GND. To ensure optimum performance, solder Pin 7 to the PCB and tie directly to Pin 6. (SC70/DFN)
causing unwanted shifts in the output voltage. load transient response is a function of output capacitance. larger load current changes. Give extra consideration to the use of ceramic capacitors.
3009 F02
1210 CASE SIZE, 10μF
3009 F03
Figure 2. Ceramic Capacitor DC Bias Characteristics Figure 3. Ceramic Capacitor Temperature Characteristics range and maximum capacitance change over temperature. capacitance at operating voltage should be verifi ed.
Figure 4. Noise Resulting from Tapping induced by vibrations in the system or thermal transients. Figure 4’s trace in response to light tapping from a pencil. increased output voltage noise.
- Output current multiplied by the input/output voltage
- GND pin current multiplied by the input voltage:
heat generated by power devices.
3009 F04
The following tables list thermal resistance for several dif- ferent board sizes and copper areas. All measurements were taken in still air on 3/32" FR-4 board with one ounce copper . Calculating Junction Temperature Example: Given an output voltage of 3.3V , an input volt- age range of 12V ±5%, an output current range of 0mA to 20mA and a maximum ambient temperature of 85°C, what will the maximum junction temperature be for an application using the DC package? The power dissipated by the device is equal to: I OUT(MAX) (VIN(MAX) – VOUT) + IGND (VIN(MAX)) where, I OUT(MAX) = 20mA V IN(MAX) = 12.6V I GND at (IOUT = 20mA, VIN = 12.6V) = 0.45mA So, The thermal resistance will be in the range of 65°C/W to 85°C/W depending on the copper area. So the junction temperature rise above ambient will be approximately equal to: The maximum junction temperature equals the maximum junction temperature rise above ambient plus the maximum ambient temperature or: T Table 2: Measured Thermal Resistance for DC Package COPPER AREA BOARD AREA THERMAL RESISTANCE (JUNCTION-TO-AMBIENT)TOPSIDE* BACKSIDE 2500mm2 2500mm2 2500mm2 65°C/W 1000mm2 2500mm2 2500mm2 70°C/W 225mm2 2500mm2 2500mm2 75°C/W 100mm2 2500mm2 2500mm2 80°C/W 50mm2 2500mm2 2500mm2 85°C/W *Device is mounted on the topside. Table 3: Measured Thermal Resistance for SC70 Package COPPER AREA BOARD AREA THERMAL RESISTANCE (JUNCTION-TO-AMBIENT)TOPSIDE* BACKSIDE 2500mm2 2500mm2 2500mm2 75°C/W 1000mm2 2500mm2 2500mm2 80°C/W 225mm2 2500mm2 2500mm2 85°C/W 100mm2 2500mm2 2500mm2 90°C/W 50mm2 2500mm2 2500mm2 95°C/W *Device is mounted on the topside. APPLICATIONS INFORMATION
3009 F05
Figure 5. Reverse Output Current exceed a junction temperature of 125°C. that are plugged in backwards. be referenced to a negative rail. L T3009 and stops OUT from sourcing current. diode when pulled above or below ground. reverse current if OUT is pulled above IN.
3.3V
3009 TA02
1μF 1μF GND L T3009-3.3 NO PROTECTION DIODES NEEDED! VIN 12V LOAD: SYSTEM MONITOR, VOLATILE MEMORY, ETC. IN SHDN
3009 TA03
1μFSUPERCAP 1μF SENSE PWR TO MONITORING CENTER GND GNDL T3009-5 LINE POWERVLINE 12V TO 15V DCHARGE RLIMIT LINE INTERRUPT DETECT Keep-Alive Power Supply Last-Gasp Circuit
6-Lead Plastic DFN (2mm × 2mm) (Reference L TC DWG # 05-08-1703) 2.00 p0.10 (4 SIDES) NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WCCD-2) 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 0.38 p 0.05 BOTTOM VIEW—EXPOSED PAD 0.56 p 0.05 (2 SIDES) 0.75 p0.05 R = 0.115 TYP 1.37 p0.05 (2 SIDES) PIN 1 BAR TOP MARK (SEE NOTE 6)
0.200 REF
0.00 – 0.05 (DC6) DFN 1103 0.25 p 0.05 1.42 p0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 0.61 p0.05 (2 SIDES)1.15 p0.05 0.675 p0.05 2.50 p0.05 PACKAGE OUTLINE 0.25 p 0.05 0.50 BSC0.50 BSC PIN 1 CHAMFER OF EXPOSED PAD PACKAGE DESCRIPTION
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However , no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. PACKAGE DESCRIPTION 8-Lead Plastic SC70 (Reference L TC DWG # 05-08-1639 Rev Ø) 1.15 – 1.35 0.15 – 0.27
8 PLCS (NOTE 3)
SC8 SC70 0905 REV Ø 1.80 – 2.20 (NOTE 4)
0.50 BSC
0.80 – 1.00
1.00 MAX
0.00 – 0.10 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. DETAILS OF THE PIN 1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE INDEX AREA 7. EIAJ PACKAGE REFERENCE IS EIAJ SC-70 AND JEDEC MO-203 VARIATION BA
2.8 BSC
0.30 MAX 0.50 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR
1.8 REF
1.00 REF
(NOTE 6) 0.10 – 0.18 (NOTE 3) 0.26 – 0.46 GAUGE PLANE
0.15 BSC
0.10 – 0.40
Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2007 LT 0908 REV B • PRINTED IN USA RELATED PARTS PART NUMBER DESCRIPTION COMMENTS L T1761 100mA, Low Noise Micropower LDO V IN: 1.8V to 20V , VOUT = 1.22V , VDO = 0.3V , IQ = 20μA, ISD < 1μA, Low Noise < 20μVRMS, Stable with 1μF Ceramic Capacitors, ThinSOTTM Package L T1762 150mA, Low Noise Micropower LDO V IN: 1.8V to 20V , VOUT = 1.22V , VDO = 0.3V , IQ = 25μA, ISD < 1μA, Low Noise < 20μVRMS, L T1763 500mA, Low Noise Micropower LDO V IN: 1.8V to 20V , VOUT = 1.22V , VDO = 0.3V , IQ = 30μA, ISD < 1μA, Low Noise < 20μVRMS, L T1764/L T1764A 3A, Low Noise, Fast T ransient Response LDOs VIN: 2.7V to 20V , VOUT = 1.21V , VDO = 0.34V , IQ = 1mA, ISD < 1μA, Low Noise < 40μVRMS, “A” Version Stable with Ceramic Capacitors, DD and TO220-5 Packages L TC1844 150mA, Low Noise Micropower VLDO V IN: 1.6V to 6.5V , VOUT(MIN) = 1.25V , VDO = 0.09V , IQ = 35μA, ISD < 1μA, Low Noise: < 30μVRMS, ThinSOT Package L T1962 300mA, Low Noise Micropower LDO V IN: 1.8V to 20V , VOUT(MIN) = 1.22V , VDO = 0.27V , IQ = 30μA, ISD < 1μA, Low Noise: < 20μVRMS, MS8 Package L T1963/L T1963A 1.5A, Low Noise, Fast T ransient Response LDOs VIN: 2.1V to 20V , VOUT(MIN) = 1.21V , VDO = 0.34V , IQ = 1mA, ISD < 1μA, Low Noise: < 40μVRMS, “A” Version Stable with Ceramic Capacitors, DD, TO220-5, SOT223 and S8 Packages L T1964 200mA, Low Noise Micropower , Negative LDO VIN: –2.2V to –20V , VOUT(MIN) = 1.21V , VDO = 0.34V , IQ = 30μA, ISD = 3μA, Low Noise: < 30μVRMS, Stable with Ceramic Capacitors,ThinSOT Package L T3010 50mA, High Voltage, Micropower LDO V IN: 3V to 80V , VOUT(MIN) = 1.275V , VDO = 0.3V , IQ = 30μA, ISD < 1μA, Low Noise: < 100μVRMS, Stable with 1μF Output Capacitor , MS8E Package L T3012/L T3012B 250mA, High Voltage, Micropower LDOs V IN: 4V to 80V , VOUT(MIN) = 1.24V , VDO = 0.4V , IQ = 40μA, ISD < 1μA, Low Noise: <100μVRMS, Stable with 3.3μF Output Capacitor , 12-Lead 4mm × 3mm DFN and 16-Lead FE Packages L T3013/L T3013B 250mA, High Voltage, Micropower LDOs with PWRGD VIN: 4V to 80V , VOUT(MIN) = 1.22V , VDO = 0.4V , IQ = 40μA, ISD < 1μA, Low Noise: < 100μVRMS, Stable with 3.3μF Output Capacitor , 12-Lead 4mm × 3mm DFN and 16-Lead FE Packages L T3014/L T3014B 20mA, High Voltage, Micropower LDO V IN: 3V to 80V , VOUT(MIN) = 1.2V , VDO = 0.35V , IQ = 7μA, ISD < 1μA, Low Noise: < 100μVRMS, Stable with 0.47μF Output Capacitor , SOT23-5 and 3mm × 3mm DFN Packages L T3020 100mA, Low Voltage VLDO VIN: 0.9V to 10V , VOUT(MIN) = 0.20V , VDO = 0.15V , IQ = 120μA, ISD < 1μA, 3mm × 3mm DFN and MS8 Packages L T3021 500mA, Low Voltage VLDO VIN: 0.9V to 10V , VOUT(MIN) = 0.20V , VDO = 0.16V , IQ = 120μA, ISD < 3μA, 5mm × 5mm DFN and SO8 Packages L T3023 Dual 100mA, Low Noise, Micropower LDO VIN: 1.8V to 20V , VOUT(MIN) = 1.22V , VDO = 0.30V , IQ = 40μA, ISD < 1μA, DFN and MS10 Packages L T3024 Dual 100mA/500mA, Low Noise, Micropower LDO VIN: 1.8V to 20V , VOUT(MIN) = 1.22V , VDO = 0.30V , IQ = 60μA, ISD < 1μA, DFN and TSSOP- 16E Packages L TC3025 300mA, Low Voltage Micropower VLDO 45mV Dropout Voltage, Low Noise 110μV RMS, VIN = 1.14V to 5.5V , Low IQ: 54μA, 6-Lead 2mm × 2mm DFN Package L TC3026 1.5A, Low Input Voltage VLDO 100mV Dropout Voltage, Low Noise 80μV RMS, VIN = 0.9V to 5.5V , Low IQ: 950μA, 10-Lead 3mm × 3mm DFN and MS10E Packages L T3027 Dual 100mA, Low Noise, Micropower LDO with Independent Inputs VIN: 1.8V to 20V , VOUT(MIN) = 1.22V , VDO = 0.30V , IQ = 40μA, ISD < 1μA, DFN and MS10E Packages L T3028 Dual 100mA/500mA, Low Noise, Micropower LDO with Independent Inputs V IN: 1.8V to 20V , VOUT(MIN) = 1.22V , VDO = 0.30V , IQ = 60μA, ISD < 1μA, DFN and TSSOP-16E Packages ThinSOT is a trademark of Linear Technology Corporation.