LT3014B LINER
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, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6118263, 6144250. IN LT3014B 1µF VIN 5.4V TO 80V OUT ADJ GND
3014 TA01
0.47µF 3.92M 1.27M 400 350 300 250 200 150 100
3014 TA02
OUTPUT CURRENT (mA) DROPOUT VOLTAGE (mV) 0 4 10 122 6 8 1 41 61 82 0 ■ Wide Input Voltage Range: 3V to 80V ■ Low Quiescent Current: 7µA ■ Low Dropout Voltage: 350mV ■ Output Current: 20mA ■ LT3014BHV Survives 100V Transients (2ms) ■ No Protection Diodes Needed ■ Adjustable Output from 1.22V to 60V ■ Stable with 0.47µF Output Capacitor ■ Stable with Aluminum, Tantalum or Ceramic Capacitors ■ Reverse-Battery Protection ■ No Reverse Current Flow from Output ■ Thermal Limiting ■ Available in 5-Lead ThinSOT TM and 8-Lead DFN Packages 20mA, 3V to 80V Low Dropout Micropower Linear Regulator 5V Supply Dropout Voltage The LT 3014B is a high voltage, micropower low dropout linear regulator. The device is capable of supplying 20mA of output current with a dropout voltage of 350mV. De- signed for use in battery-powered or high voltage sys- tems, the low quiescent current (7 µA operating) makes the LT3014B an ideal choice. Quiescent current is also well controlled in dropout. Other features of the LT3014B include the ability to oper- ate with very small output capacitors. The regulators are stable with only 0.47 µF on the output while most older devices require between 10 µF and 100 µF for stability. Small ceramic capacitors can be used without the neces- sary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery pro- tection, current limiting, thermal limiting and reverse current protection. The device is available as an adjustable device with a 1.22V reference voltage. The LT3014B regulator is available in the 5-lead ThinSOT and 8-lead DFN packages. ■ Low Current High Voltage Regulators ■ Regulator for Battery-Powered Systems ■ Telecom Applications ■ Automotive Applications FEATURES DESCRIPTIO U APPLICATIO SU TYPICAL APPLICATIO U
Consult LTC Marketing for parts specified with wider operating temperature ranges. TJMAX = 125°C, θJA = 40°C/ W θJC = 10°C/ W MEASURED AT PIN 9. LT3014BEDD LT3014BHVEDD LCHM LCHP ORDER PART NUMBER TJMAX = 125°C, θJA = 150°C/ W θJC = 25°C/ W MEASURED AT PIN 2. SEE APPLICATIONS INFORMATION SECTION. S5 PART MARKING LT3014BES5 LT3014BHVES5 LTCHK LTCHN (Note 1) ABSOLUTE AXI U RATI GSW WW U PACKAGE/ORDER I FOR ATIOUU W
ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Input Voltage I LOAD = 20mA ● 3 3.3 V ADJ Pin Voltage V IN = 3.3V, ILOAD = 100µA 1.200 1.220 1.240 V (Notes 2, 3) 3.3V < V IN < 80V, 100µA < ILOAD < 20mA ● 1.180 1.220 1.260 V Line Regulation ∆VIN = 3.3V to 80V, ILOAD = 100µA (Note 2) ● 11 0 m V Load Regulation V IN = 3.3V, ∆ILOAD = 100µA to 20mA (Note 2) 13 25 mV VIN = 3.3V, ∆ILOAD = 100µA to 20mA ● 40 mV Dropout Voltage I LOAD = 100µA 120 180 mV VIN = VOUT(NOMINAL) (Notes 4, 5) I LOAD = 100µA ● 250 mV ILOAD = 1mA 200 270 mV ILOAD = 1mA ● 360 mV ILOAD = 10mA 300 350 mV ILOAD = 10mA ● 450 mV ILOAD = 20mA 350 410 mV ILOAD = 20mA ● 570 mV GND Pin Current I LOAD = 0mA ● 72 0 µA VIN = VOUT(NOMINAL) ILOAD = 100µA ● 12 30 µA (Notes 4, 6) I LOAD = 1mA ● 40 100 µA ILOAD = 10mA ● 250 450 µA ILOAD = 20mA ● 650 1000 µA The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. Storage Temperature Range Operating Junction Temperature Range Lead Temperature, SOT-23
5 OUT
4 ADJ
8-LEAD (3mm × 3mm) PLASTIC DFN EXPOSED PAD IS GND (PIN 9) MUST BE SOLDERED TO PCB 1OUT ADJ NC GND IN NC NC NC Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/
PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage Noise C OUT = 0.47µF, ILOAD = 20mA, BW = 10Hz to 100kHz 115 µVRMS ADJ Pin Bias Current (Note 7) 4 10 nA Ripple Rejection V IN = 7V(Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 20mA 60 70 dB Current Limit V IN = 7V, VOUT = 0V 70 mA VIN = 3.3V, ∆VOUT = –0.1V (Note 2) ● 25 mA Input Reverse V IN = –80V, VOUT = 0V ● 6m A Leakage Current Reverse Output Current V OUT = 1.22V, VIN < 1.22V (Note 2) 2 4 µA (Note 8) The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. 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 LT3014B is tested and specified for these conditions with the ADJ pin connected to the OUT pin. Note 3: Operating conditions are limited by maximum junction temperature. The regulated output voltage specification will not apply for all possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be limited. When operating at maximum output current, the input voltage range must be limited. Note 4: To satisfy requirements for minimum input voltage, the LT3014B is tested and specified for these conditions with an external resistor divider (249k bottom, 392k top) for an output voltage of 3.3V. The external resistor divider adds a 5µA DC load on the output. Note 5: Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage is equal to (V IN – VDROPOUT). Note 6: GND pin current is tested with VIN = VOUT (nominal) and a current source load. This means the device is tested while operating in its dropout region. This is the worst-case GND pin current. The GND pin current decreases slightly at higher input voltages. Note 7: ADJ pin bias current flows into the ADJ pin. Note 8: Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the OUT pin and out of the GND pin. Note 9: The LT3014BE is guaranteed to meet performance specifications from 0°C to 125°C operating junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. Note 10: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125 °C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. TYPICAL PERFOR A CE CHARACTERISTICS UW OUTPUT CURRENT (mA) DROPOUT VOLTAGE (mV)
3014 G01
01 6 42 6 10 14 18 81 2 2 0 500 450 400 300 350 250 200 150 100 TJ = 125°C TJ = 25°C Typical Dropout Voltage OUTPUT CURRENT (mA) DROPOUT VOLTAGE (mV) 200 400 600 100 300 500 4 8 12 16
3014 G02
= TEST POINTS TJ ≤ 125°C TJ ≤ 25°C TEMPERATURE (°C) –50 DROPOUT VOLTAGE (mV) 150 200 250 500 350 0 50 75
3014 G03
–25 25 100 125 IL = 20mA IL = 10mA IL = 1mA IL = 100µA Guaranteed Dropout Voltage Dropout Voltage
OUTPUT VOLTAGE (V) REVERSE OUTPUT CURRENT (µA)
3014 G15
TJ = 25°C VIN = 0V VOUT = VADJ CURRENT FLOWS INTO OUTPUT PIN ADJ PIN ESD CLAMP TEMPERATURE (°C) –50 CURRENT LIMIT (mA) 100 0 50 75
3014 G14
–25 25 100 125 VIN = 7V VOUT = 0V INPUT VOLTAGE (V) CURRENT LIMIT (mA)
3014 G13
VOUT = 0V TJ = 25°C Current Limit Reverse Output CurrentCurrent Limit TEMPERATURE (°C) ADJ PIN BIAS CURRENT (nA)
3014 G12
–2 5 0 5 0–5 0 75 100 125 ADJ Pin Bias Current OUTPUT CURRENT (mA) GND PIN CURRENT (µA) 600 800 1000
3014 G08
VIN = 3.3V TJ = 25°C VOUT = 1.22V INPUT VOLTAGE (V) GND PIN CURRENT (µA) 600 800 1000
3014 G07
TJ = 25°C *FOR VOUT = 1.22V RL = 61Ω IL = 20mA* RL = 122Ω IL = 10mA* RL = 1.22k IL = 1mA* 08 213579 4 6 10 INPUT VOLTAGE (V) QUIESCENT CURRENT (µA)
3014 G06
TJ = 25°C RL = ∞ VOUT = 1.22V Quiescent Current Quiescent Current ADJ Pin Voltage TEMPERATURE (°C) –5 0 ADJ PIN VOLTAGE (V) 1.235
3014 G05
1.220 1.210 –2 5 0 5 0 1.205 1.200 1.240 1.230 1.225 1.215 75 100 125 IL = 100µA GND Pin Current vs ILOADGND Pin Current TEMPERATURE (°C) –5 0 QUIESCENT CURRENT (µA)
3014 G04
–2 5 0 5 0 75 100 125 VIN = 6V RL = ∞ IL = 0 TYPICAL PERFOR A CE CHARACTERISTICS UW
TEMPERATURE (°C) –5 0 RIPPLE REJECTION (dB)
3014 G17
–2 5 0 5 0 75 100 125 VIN = 7V + 0.5VP-P RIPPLE AT f = 120Hz IL = 20mA TYPICAL PERFOR A CE CHARACTERISTICS UW Reverse Output Current Input Ripple RejectionInput Ripple Rejection TEMPERATURE (°C) –5 0 REVERSE OUTPUT CURRENT (µA) 7
3014 G16
–2 5 0 5 0 75 100 125 VIN = 0V VOUT = VADJ = 1.22V FREQUENCY (Hz) RIPPLE REJECTION (dB) 100 1k 10k 100k 1M
3014 G18
VIN = 7V + 50mVRMS RIPPLE IL = 20mA COUT = 4.7µF COUT = 0.47µF Load RegulationMinimum Input Voltage Output Noise Spectral Density TEMPERATURE (°C) –50 3.5 3.0 2.5 2.0 1.5 1.0 0.5 25 75
3014 G19
–25 0 50 100 125 MINIMUM INPUT VOLTAGE (V) ILOAD = 20mA TEMPERATURE (°C) –5 0 LOAD REGULATION (mV)
3014 G20
–20 –30 –2 5 0 5 0 –35 –40 –10 –15 –25 75 100 125 ∆IL = 100µA TO 20mA VOUT = 1.22V FREQUENCY (Hz) 0.1 OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz) 10 1k 10k 100k
3014 G21
0.01 100 COUT = 0.47µF IL = 20mA VOUT = 1.22V TIME (µs) OUTPUT VOLTAGE DEVIATION (V)LOAD CURRENT (mA) –0.02 0.02 800
3014 G23
–0.04 0.04 200 400 600 1000 VIN = 7V VOUT = 5V CIN = COUT = 0.47µF CERAMIC ∆ILOAD = 1mA TO 5mA 10Hz to 100kHz Output Noise VOUT 200µV/DIV COUT = 0.47µF 1ms/DIV 3014 G22 IL = 20mA VOUT = 1.22V Transient Response
3014 F01
Figure 1. Adjustable Operation GND (Pin 2/Pins 4, 9): Ground. pacitance and reverse output characteristics. may be floated, tied to IN or tied to GND. capable of supplying 20mA at a dropout voltage of 350mV. and prevents reverse current flow. voltage can be calculated using the formula in Figure 1. change of 1mA to 20mA is –13mV typical at VOUT = 1.22V.
effective output capacitor value. and temperature coefficients as shown in Figures 2 and 3. capacitance at operating voltage should be verified. induced by vibrations in the system or thermal transients.
- Output current multiplied by the input/output voltage
- GND pin current multiplied by the input voltage:
3014 F02
1210 CASE SIZE, 10µF
Figure 2. Ceramic Capacitor DC Bias Characteristics
3014 F03
Figure 3. Ceramic Capacitor Temperature Characteristics
signed to protect the device during overload conditions. heat sources mounted nearby must also be considered. Table 1. SOT-23 Measured Thermal Resistance Table 2. DFN Measured Thermal Resistance range of 40°C/W to 62°C/W depending on the copper area.
voltages, and reverse voltages from output to input. tion, the junction temperature should not exceed 125°C. which can be plugged in backward. reference voltage will turn off all output current. from the 1.22V reference when the output is forced to 60V. ADJ pin yields a minimum top resistor value of 10.6k. backup battery or a second regulator circuit.
3014 F04
Figure 4. Reverse Output Current
LT3014B1µF RETURN –48V OUT ADJ GND
3014 TA06
1µF RSET ILED = 1.22V/RSET –48V CAN VARY FROM –3.3V TO –80V ADJ OUTIN LT3014B GND 1µF 1µF VIN 12V (LATER 42V) LOAD: CLOCK, SECURITY SYSTEM ETC –ADJ OUTIN LT3014B GND 1µF 1µF VIN 48V (72V TRANSIENT) LOAD: SYSTEM MONITOR ETC NO PROTECTION DIODE NEEDED! NO PROTECTION DIODE NEEDED!
3014 TA05
LT3014B Automotive Application LT3014B Telecom Application Constant Brightness for Indicator LED over Wide Input Voltage Range TYPICAL APPLICATIO SU
8-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1698) 3.00 ±0.10 (4 SIDES) NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 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 TOP AND BOTTOM OF PACKAGE 0.38 ± 0.10 BOTTOM VIEW—EXPOSED PAD 1.65 ± 0.10 (2 SIDES) 0.75 ±0.05 R = 0.115 TYP 2.38 ±0.10 (2 SIDES) PIN 1 TOP MARK (NOTE 6)
0.200 REF
0.00 – 0.05 (DD8) DFN 1203 0.25 ± 0.05 2.38 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 1.65 ±0.05 (2 SIDES)2.15 ±0.05 0.50 BSC 0.675 ±0.05 3.5 ±0.05 PACKAGE OUTLINE 0.25 ± 0.05
0.50 BSC
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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 5-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1635) 1.50 – 1.75 (NOTE 4)2.80 BSC 0.30 – 0.45 TYP
5 PLCS (NOTE 3)
DATUM ‘A’ 0.09 – 0.20 (NOTE 3) S5 TSOT-23 0302 PIN ONE
2.90 BSC
(NOTE 4)
0.95 BSC
1.90 BSC
0.80 – 0.90
1.00 MAX
0.01 – 0.100.20 BSC 0.30 – 0.50 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. JEDEC PACKAGE REFERENCE IS MO-193
3.85 MAX
0.62 MAX 0.95 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 1.4 MIN2.62 REF
1.22 REF
PART NUMBER DESCRIPTION COMMENTS LT1129 700mA, Micropower, LDO V IN: 4.2V to 30V, V OUT(MIN) = 3.75V, VDO = 0.4V, IQ = 50µA, ISD = 16µA, DD, SOT-223, S8, TO220, TSSOP-20 Packages LT1175 500mA, Micropower Negative LDO V IN: –20V to –4.3V, V OUT(MIN) = –3.8V, V DO = 0.50V, IQ = 45µA, ISD = 10µA, DD, SOT-223, S8 Packages LT1185 3A, Negative LDO V IN: –35V to –4.2V, V OUT(MIN) = –2.40V, V DO = 0.80V, IQ = 2.5mA, ISD <1µA, LT1761 100mA, Low Noise Micropower, LDO V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 20µA, ISD <1µA, ThinSOT Package LT1762 150mA, Low Noise Micropower, LDO V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 25µA, ISD <1µA, LT1763 500mA, Low Noise Micropower, LDO V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 30µA, ISD <1µA, LT1764/LT1764A 3A, Low Noise, Fast Transient Response, LDO V IN: 2.7V to 20V, V OUT(MIN) = 1.21V, VDO = 0.34V, IQ = 1mA, ISD <1µA, DD, TO220 Packages LTC1844 150mA, Very Low Dropout LDO V IN: 1.6V to 6.5V, V OUT(MIN) = 1.25V, VDO = 0.08V, IQ = 40µA, ISD <1µA, ThinSOT Package LT1962 300mA, Low Noise Micropower, LDO V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.27V, IQ = 30µA, ISD <1µA, LT1963/LT1963A 1.5A, Low Noise, Fast Transient Response, LDO V IN: 2.1V to 20V, V OUT(MIN) = 1.21V, VDO = 0.34V, IQ = 1mA, ISD <1µA, DD, TO220, SOT Packages LT1964 200mA, Low Noise Micropower, Negative LDO V IN: –1.9V to –20V, V OUT(MIN) = –1.21V, V DO = 0.34V, IQ = 30µA, ISD = 3µA, ThinSOT Package LT3010 50mA, 80V, Low Noise Micropower, LDO V IN: 3V to 80V, V OUT(MIN) = 1.28V, VDO = 0.3V, IQ = 30µA, ISD <1µA, LT3020 100mA, Low V IN, Low VOUT Micropower, VLDO V IN: 0.9V to 10V, V OUT(MIN) = 0.20V, VDO = 0.15V, IQ = 120µA, ISD <1µA, DFN, MS8 Packages LT3023 Dual 100mA, Low Noise Micropower, LDO V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 40µA, ISD <1µA, DFN, MS10 Packages LT3024 Dual 100mA/500mA, Low Noise Micropower, V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 60µA, ISD <1µA, LDO DFN, TSSOP-16E Packages LT3027 Dual 100mA, Low Noise LDO with Independent V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 40µA, ISD <1µA, Inputs DFN, MS10E Packages LT3028 Dual 100mA/500mA, Low Noise LDO with V IN: 1.8V to 20V, V OUT(MIN) = 1.22V, VDO = 0.30V, IQ = 60µA, ISD <1µA, Independent Inputs DFN, TSSOP-16E Packages RELATED PARTS Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LT 0206 1K • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006