Linear Regulators InfoCard 10 LINEAR REGULATORS Positive Low Dropout Fixed 3.3V Fixed 2.8V Adjustable LT1761 (0.1A) LT1762 (0.15A) LT1020 (0.125A) LT1120 (0.125A) LT1120A (0.125A) LT1121 (0.150A) LT1521 (0.3A)** LT1579 (0.3A) LT1763 (0.5A) , LT1129 (0.700A)* ** LT1117 (0.8A)*, ** LT1086 (1.5A)* LT1085 (3A)* LT1528 (3A)* LT1529 (3A)* LT1587 (3A)* LT1764 (3A)* LT1585 (4.6A)* LT1084 (5A) LT1585A (5A) LT1580 (7A) LT1584 (7A) LT1083 (7.5A) LT1581 (10A) Fixed 1.5V LT1761-2.8 (0.1A) LT1117-2.85 (0.8A) LT1118-2.85 (0.8A/- 0.4A) LT1086-2.85 (1.5A) LT1587-1.5 (3A) LT1585-1.5 (4.6A) LT1585A-1.5 (5A) Fixed 1.8V LT1761-1.8 (0.1A) LT1764-1.8 (3A)* Fixed 2.0V LT1761-2 (0.1A) LT1761-3 (0.1A) LT1762-3.3 (0.15A) LT1121-3.3 (0.15A)** , LT1521-3.3 (0.3A)** LT1763-3.3 (0.5A) , LT1129-3.3 (0.7A)* ** LT1117-3.3 (0.8A)** LT1086-3.3 (1.5A)* LT1764-3.3 (3A)* LT1085-3.3 (3A)* LT1529-3.3 (3A) LT1587-3.3 (3A)* LT1585-3.3 (4.6A)* LT1084-3.3 (5A) LT1585A-3.3 (5A) LT1584-3.3 (7A) LT1761-3 (0.1A) LT1762-3 (0.15A) LT1763-3 (0.5A) LT1521-3 (0.3A)**, LT1761-2.5 (0.1A) LT1762-2.5 (0.15A) LT1118 (0.8A/-0.4A) LT1763-2.5 (0.5A) LT1764-2.5 (3A)* LT1580-2.5(7A) LT1581-2.5 (10A) Fixed 5V LT1587-3.45 (3A)* LT1585-3.45 (4A)* LT1584-3.45 (7A) LT1761-5 (0.1A) LT1762-5 (0.15A) LT1121-5 (0.15A)** , LT1521-5 (0.3A)** Dual Input LT1579 (0.3A) LT1579-3 (0.3A) LT1579-3.3 (0.3A) LT1579-5 (0.3A) LT1763-5 (0.5A) , LT1129-5 (0.7A)* ** LT1117-5 (0.8A)** LT1118-5 (0.8A/-0.4A) LT1086-5 (1.5A) LT1085-5 (3A) LT1529-5 (3A)* LT1084-5 (5A) LT1083-5 (7.5A) LT1123 (PNP Driver)** Fixed 3.38V Fixed 3.6V LT1585-3.38 (4A)* LT1584-3.38 (7A) LT1086-3.6 (1.5A)* LT1085-3.6 (3A)* LT1587-3.6 (3A) LT1585-3.6 (4A)* LT1584-3.6 (7A) Fixed 3.0V Fixed 2.5V Fixed 3.45V Fixed 12V LT1086-12 (1.5A) LT1085-12 (3A) LT1084-12 (5A) LT1083-12 (7.5A) Low Dropout w/Remote Sense LT1087 (5A) Positive UltraFastTM Transient Response Low Dropout, High Current Single Controllers LT1575 LT1575-1.5 LT1575-2.8 LT1575-3.3 LT1575-3.5 LT1575-5 LT1573 LT1573-2.5 LT1573-2.8 LT1573-3.3 Dual Controllers LT1577-Adj/Adj LT1577-3.3/Adj LT1577-3.3/2.8 Positive Standard Adjustable 4% VREF 1% VREF LT117A/317A (1.5A) LT138A/338A (5A) LT1083 (10A) Fixed 5V LT123A/323A (3A) LM123/323 (3A) LT1003 (5A) Logic Controlled LT1005 (5V, 1A) LT1035 (5V, 3A) LT1036 (12V, 3A) LM117/317 (1.5A) LM150/350 (3A) LM138/338 (5V) Negative Low Dropout Adjustable Fixed -5V Negative Standard Adjustable LT1175 (500mA) LT1185 (3A) LT1175-5 (500mA) Positive Micropower LT1521 (300mA, 12A) LT1121 (150mA, 30A) LT1020 (125mA, 40A) LT1120 (125mA, 40A) LT1579 (300mA, 50A) LT1129 (800mA, 50A) LT1118 (800mA, 600A) LT1761 (100mA, 20A) LT1762 (150mA, 25A) LT1763 (500mA, 30A) 1% VREF 4% VREF LT137A/337A (1.5A) LT1033 (3A) LM137/337 (1.5A) Key: Part Number (Output Current, Quiescent Current), New products in bold * Available in surface mount DD package ** Available in surface mount SOT223 package Available in surface mount SSOP or MSOP package Available in SOT-23 Bold denotes a new product , LTC and LT are registered trademarks of Linear Technology Corporation. UltraFast is a trademark of Linear Technology Corporation. Rev H 1299 Linear Technology Corporation * 1630 McCarthy Blvd. * Milpitas, CA 95035-7417 * (408) 432-1900 * www.linear-tech.com * Literature Only: 1-800-4-LINEAR Linear Regulators InfoCard 10 Positive Regulators IOUT PART NUMBER DROPOUT VOLTAGE VIN MAX IQ (SUPPLY)* OUTPUT VOLTAGES REF (V) 100mA LT1761 0.3V 20V 20A Adj, 1.8, 2, 3, 3.3, 5 1.22 New 125mA LT1020 LT1120 0.4V 0.4V 36V 36V 40A 40A Adjustable Adjustable 2.50 2.50 90:4-39 94:4-107 SO, Comparator & Reference, Class B Outputs S8, Comparator & Reference, Logic Shutdown 150mA LT1121 LT1762 0.42V 0.3V 30V 20V 30A 25A Adj, 3.3, 5 Adj, 2.5, 3, 3.3, 5 3.750 1.25 94:4-114 New SOT-223, S8, Self-Protection MSOP-8, Very Low Noise, Self-Protected 300mA LT1521 LT1579 0.5V 0.4V 20V 20V 12A 50A Adj, 3, 3.3, 5 Adj, 3, 3.3, 5 3.750 1.500 95:4-79 99:4-118 MSOP, SOT-223, S8, Stable with Small Output Cap S8, S16, SSOP; Dual Input Smooth Switching 500mA LT1086 LT1763 0.95V 0.3V 25V 20V 5mA* 30A Adjustable Adj, 2.5, 3, 3.3, 5 1.250 1.22 94:4-72 New Low Dropout SO-8, Very Low Noise, Self-Protected 800mA LT1129 LT1117 LT1118 0.4V 1.1V 1V 30V 15V 15V 50A 10mA* 600A Adj, 3.3, 5 Adj, 2.85, 3.3, 5 2.5, 2.85, 5 3.750 1.250 -- 94:4-125 94:4-85 95:4-64 DD, SOT-223, S8, Self-Protection DD, SOT-223; Can Also Sink 400mA, SOT-223, DD For Active Terminal of SCSI Lines Logic Controlled, Dual Output SHUTDOWN DATABOOK REFERENCE NOTES SOT-23, MSOP-8, Very Low Noise, Protected from Reverse Battery or Current 1A LT1005 2V 20V 4mA 5 -- 90:4-17 1.5A LT1086 1.3V 25V 5mA* Adj, 2.85, 3.3, 3.6, 5, 12 1.250 94:4-72 3A LT1764 0.34V 20V 1mA Adj, 1.8, 2.5, 3.3 1.21 New LT1035 LT1036 2.2V 2.4V 20V 30V 5mA 5.5mA 5V/3A, 5V/75mA 12V/3A, 5V/75mA -- -- 90:4-57 90:4-69 Logic Controlled, Dual Output Logic Controlled, Dual Output LT1085 LT1587 1.3V 1.1V 25V 7V 5mA* 13mA Adj, 3.3, 3.6, 5, 12 Adj, 1.5, 3.3, 3.45, 3.6 1.250 1.250 94:4-48 95:4-112 Also DD; Handles Surge Currents to 100A Fast Transient Response, DD, TO-220 LT1528 LT1529 0.6V 0.5V 15V 15V 400A 50A Adj, 3.3 Adj, 3.3, 5 3.300 3.750 95:4-91 95:4-101 Fast Transient Response, Shutdown, DD, TO-220 Shutdown, DD, TO-220 Fast Transient Response, DD, TO-220 Also DD Pkg, 3 Terminals, 0.015% Line Regulation DD, TO-220 Packages, Fast Transient Response 4A LT1585 1.1V 7V 13mA 3.38, 3.45, 3.6 1.250 96:4-65 4.6A LT1585 1.1V 7V 13mA Adj, 1.5, 3.3 1.250 96:4-65 Fast Transient Response, DD, TO-220 5A LT1585A LT1003 1.1V 2.5V 7V 20V 13mA 20mA Adj, 1.5, 3.3 5 1.250 -- 96:4-65 90:4-9 For Low Voltage Microprocessors 5A Version of 323 LT1084 LT1087 1.3V 1.3V 25V 25V 5mA* 5mA* Adj, 3.3, 5, 12 Adjustable 1.250 1.250 94:4-48 92:4-56 Pin Compatible with Std. 3-Terminal Regulators LT1084 with Kelvin-Sense Inputs LT1584 LT1580 1.1V 0.54V 7V 6V 13mA 10mA Adj, 3.3, 3.38, 3.45, 3.6 Adj, 2.5 1.250 1.250 95:4-112 96:4-54 Fast Transient Response, Shutdown, DD, TO-220 Also DD Package, Remote Sense, Fast Transient 7.5A LT1083 1.3V 25V 5mA* Adj, 3.3, 3.6, 5, 12 1.250 94:4-48 0.015% Line Regulation, 0.01% Load Regulation 10A LT1038 LT1581 3V 0.43V 35V 6V * 10mA Adjustable Adj, 2.5 1.25 1.250 90:4-77 97:4-57 Improved std., Guaranteed Tolerance, Regulation Fast Transient Response, Remote Sense Adjustable -1.25 Adj, 5 -3.8 7A Negative Regulators 500mA LT337AH 3V 40V * 800mA LT1175 0.45V 20V 65A 1.5A LT337A 3V 40V * Adjustable -1.250 3A LT1033 LT1185 3V 0.8V 35V 35V * 3.5mA Adjustable Adjustable -1.250 -2.37 Guaranteed Tolerance and Regulation 95:4-68 DD, S8, SOT-223, Precision DC Characteristics 90:4-49 92:4-86 Guaranteed Tolerance and Regulation Programmable Current Limit, Remote Sense TO-220 and TO-3 Packages, Guaranteed Regulation Discrete Pass Element Drivers and Regulators - Very Low Dropout LT1123 30V 700A 5 LT1573 LT1575 LT1577 10V 22V 22V 3.5mA 19mA 19mA Adj, 2.5, 2.8, 3.3 Adj, 1.5, 2.8, 3.3, 5 Adj, 2.8, 3.3 -- 92:4-75 SOT-223, TO92, 1% Output Tolerance 1.265 1.210 -- 95:4-385 97:4-42 97:4-42 Also S8, Fast Transient Response Drives Low Cost N-Channel MOSFETs No Need for Tantalum or Electrolytics * The values given are for fixed output versions. All adjustable versions can be configured so that quiescent current flows into the load, for increased efficiency. Maximum output current and dropout voltage are dependent upon pass element power transistor chosen. Reference voltage for adjustable regulators. New product. 2 Linear Regulators InfoCard 10 Linear Regulators for 5V Input to 3V or 3.3V Output IOUT (mA) DROPOUT PART NUMBER VOLTAGE EXTERNAL COMPONENTS* DATABOOK REFERENCE FEATURES 100 125 150 150 LT1761 LT1120 LT1762 LT1121 0.3V 0.4V 0.3V 0.4V 2C, c 2C, c 2C, c 2C New 94:4-107 New 94:4-114 Very Low Noise, SOT-23, MSOP-8 Remote Sense, Shutdown, Low Battery, SO-8 Very Low Noise, MSOP-8 Shutdown, S0-8, MSOP-8, SOT-223 300 500 700 LT1521 LT1763 LT1129 0.5V 0.3V 0.4V 2c 2C, c 2c 94:5-79 New 94:4-125 MSOP, SO-8, SOT-223, Stable with Small Output Cap Very Low Noise, SO-8 Shutdown, SO-8, SOT-223, DD, TO-220 800 LT1117 LT1118 1.1V 1V 2C 2C 94:4-85 95:4-64 SOT-223, DD, SO-8 Can Also Sink 400mA, SOT-223, DD 1.5A LT1086 1.3V 2C 94:4-72 DD, TO-220, 0.015% Line Regulation 3A LT1764 LT1529 LT1528 LT1587 0.34V 0.5V 0.6V 1.1V 2C 2C 2C 2C New 95:4-101 95:4-91 95:4-112 Fast Transient Response, DD, TO-220 Shutdown, DD, TO-220 Fast Transient Response, Shutdown, DD, TO-220 Fast Transient Response, DD, TO-220 4.6A 5A LT1585 LT1585A 1.1V 1.1V 2C 2C 96:4-65 96:4-65 Fast Transient Response, DD, TO-220 Fast Transient Response, DD, TO-220 7A LT1584 LT1580 1.1V 0.5V 2C 2C 95:4-112 96:4-54 Fast Transient Response, DD, TO-220 Remote Sense, Fast Transient Response, DD, T 10A LT1581 1V 2C 97:4-57 Remote Sense, Fast Transient Response, T *C is a tantalum or other low ESR capacitor. c is a ceramic capacitor. ** Price shown is unit price (lowest cost package version) when purchased in quantities of 1000. Bold denotes new product. See also switching regulators for this application. Easy 5V to VCC Linear Regulators for Desktop Microprocessors Low Dropout Regulator VCC for P 5V IOUT 1.5V 1.8V VCC for P 5V or 3.3V 2.5V 3.3V 3.38V 3.45V 3.6V 1.5A LT1086 LT1086 LT1086 LT1086-3.3 LT1086 LT1086 LT1086-3.6 3A LT1764 LT1587-1.5 LT1764-1.8 LT1764-1.8 LT1587 LT1764-2.5 LT1580-2.5 LT1764-3.3 LT1587-3.3 LT1528 LT1764 LT1528 LT1764 LT1587-3.45 LT1528 LT1764 LT1587-3.6 LT1528 4A LT1585-1.5 LT1585 LT1580-2.5 LT1585-3.3 LT1585-3.38 LT1585-3.45 LT1585-3.6 4.6A LT1585-1.5 LT1585 LT1580-2.5 LT1585-3.3 LT1585-3.38 LT1585-3.45 LT1585-3.6 5A LT1585A-1.5 LT1585A LT1580-2.5 LT1585A-3.3 -- -- -- 7A LT1083 LT1083 LT1584 LT1580-2.5 LT1584-3.3 LT1580 LT1584-3.38 LT1580 LT1584-3.45 LT1584-3.6 7.5A LT1581 LT1581 LT1581-2.5 LT1083 LT1083 LT1083 LT1083 10A LT1581 LT1581 LT1581-2.5 LT1581 LT1581 LT1581 LT1581 3 Linear Regulators InfoCard 10 LT1761, LT1762, LT1763 100mA, 150mA and 500mA, Low Noise, LDO Micropower Regulators Competing Devices' Noise Spectral Density 5-Lead SOT-23 Package (LT1761) Low Noise: 20VRMS (10Hz to 100kHz) Low Quiescent Current: 20A to 30A Wide Input Voltage Range: 1.8V to 20V Low Dropout Voltage: 300mV Very Low Shutdown Current: < 1A No Protection Diodes Needed Fixed Output Voltages: 2.5V, 3V, 3.3V, 5V; 1.8V, 2V and 2.8V (LT1761) Adjustable Output from 1.22V to 20V Stable with 3.3F Output Capacitor Stable with Aluminum, Tantalum or Ceramic Capacitors Reverse Battery Protection No Reverse Current Overcurrent and Overtemperature Protected 8-Lead SO Package (LT1763) SOT-23 8-Lead MSOP Package (LT1762) 10 OUTPUT VOLTAGE NOISE (V/Hz) COMPETITOR 2 1 COMPETITOR 1 0.1 COMPETITOR 3 0.01 10 100 100k 10k 1k FREQUENCY (Hz) 1418_02a.EPS LT1761 Noise Spectral Density OUTPUT VOLTAGE NOISE (V/Hz) 10 3.3V Low Noise Regulator VIN 3.7V TO 20V IN OUT 1F + SENSE LT1763-3.3 3.3V AT 500mA 20VRMS NOISE 10F 0.01F 1763 TA01 SHDN BYP GND LT1761-5 LT1761-3.3 1 LT1761 0.1 0.01 10 100 10k 1k FREQUENCY (Hz) 100k 1418_02a.EPS LT1764 Series 3A, Low Dropout, Fast Transient Response Regulators Optimized for Fast Transient Response Output Current: 3A Dropout Voltage: 340mV 1mA Quiescent Current No Protection Diodes Needed Controlled Quiescent Current in Dropout VIN > 3V Fixed Output Voltages: 1.8V, 2.5V, 3.3V Adjustable Output from 1.21V to 20V < 1A Quiescent Current in Shutdown Stable with 10F Output Capacitor Stable with Ceramic Capacitors Reverse-Battery Protection No Reverse Current Thermal Limiting Dropout Voltage 400 3.3V to 2.5V Regulator IN + OUT 350 2.5V 3A + 10F 10F LT1764-2.5 SHDN SENSE GND 1764 TA01 DROPOUT VOLTAGE (mV) 300 250 200 150 100 50 0 0 0.5 1.0 1.5 2.0 LOAD CURRENT (A) 2.5 3.0 1764 TA02 Linear Technology Corporation * 1630 McCarthy Blvd. * Milpitas, CA 95035-7417 * (408) 432-1900 * www.linear-tech.com * Literature Only: 1-800-4-LINEAR ic10h (c)1992 LT/TP 1299 4K