Step-Up (Boost) Regulators
Analog Devices manufactures a broad line of high performance, step-up boost switching regulator ICs and boost switching controller ICs with both synchronous and nonsynchronous switches. These switching voltage regulators offer typical input voltage capability from less than 2 V up to 100 V+, switching frequencies up to 4 MHz, and high efficiency operation up to 96%. With burst mode operation, quiescent currents in the tens of micro-amps level can be attained. This combination of features allows for very small, low profile boost switching regulator circuit implementations with minimum external components. Many of these products can also be configured as SEPIC regulators or flyback topology switching regulators.
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LT Journal
- Boost 12V to 140V with a Single Converter IC PDF
- 3mm × 3mm Monolithic DC/DC Boost/Inverting Converters with 65V Power Switches PDF
- Ultralow Voltage Energy Harvester Uses Thermoelectric Generator for Battery-Free Wireless Sensors PDF
- September 2009 - Synchronous Boost Converter with Fault Handling Generates 5V at 500mA in 1cm2 of Board Space PDF
- January 2009 - ±32V Triple-Output Supply for LCDs, CCDs and LEDs Includes Fault Protection in a 3mm × 3mm QFN PDF
- Jan 2009 - 2-Phase, Non-Synchronous Boost Controller Simplifies Design of High Voltage, High Current Supplies PDF
- June 2009 - Ultralow Power Boost Converters Require Only 8.5µA of Standby Quiescent Current PDF
- June 2009 - Two New Controllers for Boost, Flyback, SEPIC and Inverting DC/DC Converters Accept Inputs up to 100V PDF
- September 2008 - Complete Power Solution for Digital Cameras and Other Complex Compact Portable Applications PDF
- Jan 2008 - Internal 2A, 42V Switch, Adjustable 2.5MHz Operating Frequency and 3mm × 3mm Package Allow Boost Regulator to Fit Numerous Applications PDF
- Mar 2007 - Current Mode Flyback DC/DC Controller Provides Tremendous Design Flexibility PDF
- Oct 2007 - Compact Controller is a Basic Building Block for Wide Array of DC/DC Conversion Solutions PDF
- Complete APD Bias Solution in 60mm2 with On-the-Fly Adjustable Current Limit and Adjustable VAPD
- Design Once; Use Twice: Monolithic SEPIC/Boost Regulators with Wide VIN Range Satisfy Requirements of Both Consumer and Commercial Vehicles
- Synchronous, Low EMI LED Driver Features Integrated Switches and Internal PWM Dimming
Application Notes
- AN118 - High Voltage, Low Noise, DC/DC Converters PDF
- AN44 - LT1074/LT1076 Design Manual PDF
- AN52 - Linear Technology Magazine Circuit Collection, Volume 1 PDF
- AN61 - Practical Circuitry for Measurement and Control Problems PDF
- AN65 - A Fourth Generation of LCD Backlight Technology PDF
- AN126 - 2-Wire Virtual Remote Sensing for Voltage Regulators - Clairvoyance Marries Remote Sensing PDF
- AN79 - 30 Nanosecond Settling Time Measurement for a Precision Wideband Amplifier PDF
- AN92 - Bias Voltage and Current Sense Circuits for Avalanche Photodiodes PDF
- AN98 - Signal Sources, Conditioners and Power Circuitry Circuits of the Fall, 2004 PDF
- AN94 - Slew Rate Verification for Wideband Amplifiers: The Taming of the Slew PDF
- AN113 - Power Conversion, Measurement and Pulse Circuits PDF
- AN49 - Illumination Circuitry for Liquid Crystal Displays PDF
- AN85 - Low Noise Varactor Biasing with Switching Regulators: Vanquishing Villainous Vitiators Vis-à-Vis Vital Varactors PDF
- AN84 - Linear Technology Magazine Circuit Collection, Volume IV PDF
- AN75 - Circuitry for Signal Conditioning and Power Conversion PDF
- AN72 - A Seven-Nanosecond Comparator for Single Supply Operation PDF
- AN67 - Linear Technology Magazine Circuit Collection, Volume III PDF
- AN66 - Linear Technology Magazine Circuit Collection, Volume II PDF
- AN60 - PCMCIA Card and Card Socket Power Management: PDF
- AN59 - Applications of the LT1300 and LT1301 Micropower DC/DC Converters PDF
- AN55 - Techniques for 92% Efficient LCD Illumination PDF
- AN54 - Power Conversion from Milliamps to Amps at Ultra-High Efficiency (Up to 95%) PDF
- AN51 - Power Conditioning for Notebook and Palmtop Systems PDF
- AN47 - High Speed Amplifier Techniques PDF
- AN46 - Efficiency and Power Characteristics of Switching Regulator Circuits PDF
Technical Articles
- Two Steps to High Voltages
- The Low Output Voltage Ripple Zeta DC/DC Converter Topology
- LTC3788 Generates High Voltages Using a Two-Stage Boost Converter
- LTC3788 - High Efficiency Dual Boost Regulator with Independent Inputs
- LTC3786: High Efficiency Li-Ion Battery-to-USB Boost Converter
- LT3759 Wide Vin, 48V @ >100mA Output Boost Converter that Works Down to 1.6V
- How NOT to Damage Your Switching Regulator Demo Board
- Differences Between the Ćuk Converter and the Inverting Charge Pump Converter
- Monolithic Converter Delivers High Output Voltages
- Easily Boost 12V to 140V with a Single Converter IC
- Frequently Asked Questions: Thermoelectric Energy Harvesting With the LTC3108 & LTC3109
- Wide Input Voltage Range Boost/Inverting/SEPIC Controller Works Down to an Input Voltage of 1.6V
Videos
- Synchronous PolyPhase Boost Converter for Cool and Powerful Applications
- High-Power Boost/SEPIC/Inverting DC/DC Converters with Fault Protection
- 80V Synchronous SEPIC/Inverting/Boost Controller IC with 3 Regulation Loops
- 100V, Bidirectional Multiphase Synchronous Buck or Boost Controller
- Simplify your high voltage DC/DC converters to save battery life
- Ultralow Noise and Ultrahigh PSRR
- LT8709 Video Product Brief
- LTC3784 Video Product Brief
- LTC3899 Video Product Brief
- LTC3871 Bidirectional PolyPhase® Synchronous Buck or Boost Controller - Video Product Brief
- LT8471 Video Product Brief
- LTC3769 Video Product Brief
Analog Dialogue
Design Notes
- DN545 - Monolithic Converter Delivers High Output Voltages PDF
- DN1033 - Easily Boost 12V to 140V with a Single Converter IC PDF
- DN376 - Monolithic Converter Drives High Power LEDs PDF
- DN370 - Buck or Boost: Rugged, Fast 60V Synchronous Controller Does Both PDF
- DN428 - Tiny Synchronous Step-Up Converter Starts Up at 700mV PDF
- DN371 - High Efficiency 2-Phase Boost Converter Minimizes Input and Output Current Ripple PDF
- DN317 - Boost Regulator Makes Low Profile SEPIC with Both Step-Up and Step-Down Capability PDF
- DN280 - Tiny and Efficient Boost Converter Generates 5V at 3A from 3.3V Bus PDF
- DN516 - 1μA IQ Synchronous Boost Converter Extends Battery Life in Portable Devices PDF
- DN500 - Wide Input Voltage Range Boost/Inverting/SEPIC Controller Works Down to an Input Voltage of 1.6V PDF
- DN1022 - Negative Buck Converter with Short-Circuit Protection and Shutdown PDF
- DN445 - uModule LED Driver Integrates All Circuitry, Including the Inductor, in a Surface Mount Package PDF
- DN485 - Complete Energy Utilization Improves Run Time of a Supercap Ride-Through Application by 40% PDF
- DN481 - 2-Phase, Dual Output Synchronous Boost Converter Solves Thermal Problems in Harsh Environments PDF
- DN465 - Ultralow Power Boost Converters Require Only 8.5μA of Standby Quiescent Current PDF
- DN455 - Low Profile Synchronous, 2-Phase Boost Converter Produces 200W with 98% Efficiency PDF
- DN458 - Buck Converter Eases the Task of Designing Auxiliary Low Voltage Negative Rails PDF
- DN453 - 4-Phase Boost Converter Delivers 384W with no Heat Sink PDF
- DN447 - A Complete Compact APD Bias Solution for a 10Gbits/s GPON System PDF
- DN435 - Single Resistor Sets Positive or Negative Output for DC/DC Converter PDF
- DN406 - Versatile High Power LED Driver Controller Simplifies Design PDF
- DN417 - Drive Large TFT-LCD Displays with a Space-Saving Triple-Output Regulator PDF
- DN400 - True Rail-to-Rail, High Input Impedance ADC Simplifies Precision Measurements PDF
Step-Up (Boost) Regulators
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Vout Max (typ) (V) | Switch Current (typ) (A) | Monolithic | Synchronous | Isupply (typ) (A) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LT8551 | 1 | 3.6 | 80 | 80 | 100 | No | Yes | 5m | $2.95 (LT8551EUKG#PBF) |
| 2 | ADP5076 | 2 | 2.85 | 5.5 | - | 2 | Yes | No | 3.5m | $2.19 (ADP5076ACBZ-R7) |
| 3 | ADP5072 | 2 | 2.85 | 5.5 | 35 | 1 | Yes | No | 3.5m | $2.19 (ADP5072ACBZ-R7) |
| 4 | LTC3897-2 | 1 | 4.5 | 65 | 60 | 30 | No | Yes | 55µ | $5.50 (LTC3897EUHG-2#PBF) |
| 5 | LTC7840 | 2 | 5.5 | 60 | 60 | 60 | No | No | 3m | $3.20 (LTC7840EFE#PBF) |
| 6 | LT8361 | 1 | 2.8 | 60 | 100 | 2 | Yes | No | 22µ | $2.06 (LT8361EMSE#PBF) |
| 7 | LTC7815 | 3 | 2.5 | 38 | 24 | 25 | No | Yes | 38µ | $4.35 (LTC7815EUHF#PBF) |
| 8 | LT8711 | 1 | 4.5 | 42 | 42 | 20 | No | Yes | 15µ | $2.30 (LT8711EUDC#PBF) |
| 9 | LT8362 | 1 | 2.8 | 60 | 60 | 2.5 | Yes | No | 22µ | $1.85 (LT8362EDD#PBF) |
| 10 | LTC1871X | 1 | 2.5 | 36 | 72 | 20 | No | No | 250µ | $125.00 (LTC1871XMS#PBF) |
| 11 | LTC3897 | 1 | 4.5 | 65 | 60 | 30 | No | Yes | 55µ | $5.50 (LTC3897EFE#PBF) |
| 12 | LT8364 | 1 | 2.8 | 60 | 60 | 5 | Yes | No | 9µ | $2.06 (LT8364EDE#PBF) |
| 13 | LTC3871 | 1 | 1.2 | 100 | 100 | 30 | No | Yes | 8m | $5.40 (LTC3871ELXE#PBF) |
| 14 | LT8335 | 1 | 3 | 25 | 28 | 2.5 | Yes | No | 5.5µ | $2.50 (LT8335EDDB#TRPBF) |
| 15 | LTC7813 | 2 | 2.2 | 60 | 60 | 25 | No | Yes | 34µ | $4.82 (LTC7813EUH#PBF) |
| 16 | LTC7812 | 2 | 2.5 | 38 | 60 | 25 | No | Yes | 33µ | $4.00 (LTC7812EUH#PBF) |
| 17 | LT8331 | 1 | 4.5 | 100 | 140 | 600m | Yes | No | 5.5µ | $2.95 (LT8331EMSE#PBF) |
| 18 | LT3095 | 2 | 3 | 20 | 20 | 950m | Yes | No | 3.25m | $2.95 (LT3095EUDD#PBF) |
| 19 | LTC3121 | 1 | 500m | 5.5 | 15 | 1.8 | Yes | Yes | 25µ | $2.33 (LTC3121EDE#PBF) |
| 20 | LT8494 | 1 | 1 | 32 | 70 | 2.55 | Yes | No | 3µ | $2.85 (LT8494EFE#PBF) |
| 21 | LT8330 | 1 | 3 | 40 | 60 | 1.2 | Yes | No | 5.5µ | $2.50 (LT8330EDDB#TRPBF) |
| 22 | LTC3899 | 3 | 4.5 | 60 | 59.4 | 15 | No | Yes | 39µ | $4.95 (LTC3899EUHF#PBF) |
| 23 | LT8570-1 | 1 | 2.55 | 40 | 65 | 375m | Yes | No | 1.2m | $2.25 (LT8570EMS8E-1#PBF) |
| 24 | LT8570 | 1 | 2.55 | 40 | 65 | 750m | Yes | No | 1.2m | $2.25 (LT8570EDD#PBF) |
| 25 | LT8495 | 1 | 1 | 60 | 70 | 2.55 | Yes | No | 9µ | $2.95 (LT8495EFE#PBF) |
| 26 | LT8312 | 1 | 10 | 38 | - | 25 | No | No | 8m | $2.25 (LT8312EMS#PBF) |
| 27 | ADP5070 | 2 | 2.85 | 15 | 39 | 1 | Yes | No | 4m | $2.19 (ADP5070ACPZ) |
| 28 | ADP5071 | 2 | 2.85 | 15 | 39 | 2 | Yes | No | 4m | $2.39 (ADP5071ACPZ) |
| 29 | LT8709 | 1 | -80 | -4.5 | 80 | 25 | No | Yes | 4m | $3.65 (LT8709EFE#PBF) |
| 30 | LTC3769 | 1 | 2.3 | 60 | 60 | 25 | No | Yes | 28µ | $2.75 (LTC3769EUF#PBF) |
| 31 | LTC3124 | 1 | 500m | 5.5 | 15 | 7 | Yes | Yes | 25µ | $3.26 (LTC3124EDHC#PBF) |
| 32 | LT8580 | 1 | 2.5 | 40 | 65 | 1.5 | Yes | No | 1.2m | $2.35 (LT8580EDD#PBF) |
| 33 | ADP1606 | 1 | 800m | 1.8 | 3.3 | 1 | Yes | Yes | 55µ | $1.14 (ADP1606ACPZN1.8-R7) |
| 34 | LTC3872-1 | 1 | 2.75 | 9.8 | 60 | 10 | No | No | 250µ | $1.80 (LTC3872EDDB-1#TRPBF) |
| 35 | LTC3784 | 1 | 2.3 | 60 | 60 | 25 | No | Yes | 28µ | $3.76 (LTC3784EGN#PBF) |
| 36 | LT8710 | 1 | 4.5 | 80 | 80 | 25 | No | Yes | 4m | $3.41 (LT8710EFE#PBF) |
| 37 | LT8471 | 2 | 2.6 | 50 | 50 | 2.55 | Yes | No | 2.4m | $3.75 (LT8471EFE#PBF) |
| 38 | LT3048-15 | 1 | 2.7 | 4.8 | 15 | 400m | Yes | No | 475µ | $1.65 (LT3048EDC-5#TRPBF) |
| 39 | LTC3859AL | 3 | 4.5 | 38 | 24 | 25 | No | Yes | 55µ | $4.35 (LTC3859ALEUHF#PBF) |
| 40 | LT3905 | 1 | 2.7 | 12 | 65 | 400m | Yes | No | 650µ | $2.55 (LT3905EUD#PBF) |
| 41 | LTC3122 | 1 | 500m | 5.5 | 15 | 3.5 | Yes | Yes | 25µ | $2.33 (LTC3122EDE#PBF) |
| 42 | ADP1607 | 1 | 800m | 3.3 | 3.3 | 1 | Yes | Yes | 23µ | $1.14 (ADP1607ACPZN001-R7) |
| 43 | LT3959 | 1 | 1.6 | 40 | 40 | 7 | Yes | No | 350µ | $3.05 (LT3959EUHE#PBF) |
| 44 | ADP1614 | 1 | 2.5 | 5.5 | 20 | 4 | Yes | No | 1.1m | $0.95 (ADP1614ACPZ-1.3-R7) |
| 45 | LTC3862-2 | 1 | 5.5 | 36 | 350 | 60 | No | No | 1.8m | $3.29 (LTC3862EGN-2#PBF) |
| 46 | LT3957A | 1 | 3 | 40 | 40 | 5.9 | Yes | No | 1.7m | $2.95 (LT3957AEUHE#PBF) |
| 47 | LT8582 | 2 | 2.5 | 22 | 42 | 4.3 | Yes | No | 2.1m | $3.75 (LT8582EDKD#PBF) |
| 48 | LT3759 | 1 | 1.6 | 42 | 42 | 25 | No | No | 350µ | $2.35 (LT3759EMSE#PBF) |
| 49 | LTC3787 | 1 | 4.5 | 38 | 60 | 60 | No | Yes | 135µ | $3.53 (LTC3787EGN#PBF) |
| 50 | LTC3786 | 1 | 2.5 | 38 | 60 | 30 | No | Yes | 55µ | $2.53 (LTC3786EMSE#PBF) |
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