Inverting Regulators
Analog Devices’ line of dc-to-dc invertering switching regulators is specifically designed to invert input voltages to negative outputs. It offers input voltage ranges from 1 V to 64 V with switch currents from as little as 100 mA up to 10 A. Notable features include integrated Schottky diodes, fixed frequency operation, a programmable current limit, and low noise operation.
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LT Journal
- 3mm × 3mm Monolithic DC/DC Boost/Inverting Converters with 65V Power Switches PDF
- Inverting DC/DC Controller Converts a Positive Input to a Negative Output with a Single Inductor PDF
- January 2009 - ±32V Triple-Output Supply for LCDs, CCDs and LEDs Includes Fault Protection in a 3mm × 3mm QFN 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
- Sep 2006 J-FET-Based DC/DC Converter Starts and Runs from 300mV Supply PDF
- Sep 2006 CCD Bias Supply Integrates “Output Disconnect,” Schottkys and Feedback Resistors PDF
- Sep 2005 Micropower SOT-23 Inverting DC/DC Converter Extends Battery Life in Space-Sensitive Applications PDF
- Feb 2004 Quad Output Switching Regulator Powers Large TFT Displays PDF
- Mar 2002 A High Performance, Single-Ended, No RSENSE Controller for Negative Output Supplies PDF
- Sep 2000 Inverting Switching Regulator Delivers High Current/Low Noise Outputs in a SOT-23 PDF
- Feb 1999 SOT-23 Switching Regulators Deliver Low Noise Outputs in a Small Footprint PDF
- The LTC1871 Achieves the Industry’s Highest Efficiency for Single-Ended Boost, Flyback and SEPIC Topologies
Application Notes
- AN118 - High Voltage, Low Noise, DC/DC Converters PDF
- AN44 - LT1074/LT1076 Design Manual 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
- AN20 - Application Considerations for an Instrumentation Lowpass Filter PDF
- AN35 - Step Down Switching Regulators PDF
- AN98 - Signal Sources, Conditioners and Power Circuitry Circuits of the Fall, 2004 PDF
- AN49 - Illumination Circuitry for Liquid Crystal Displays PDF
- AN84 - Linear Technology Magazine Circuit Collection, Volume IV PDF
- AN66 - Linear Technology Magazine Circuit Collection, Volume II PDF
- AN60 - PCMCIA Card and Card Socket Power Management: PDF
- AN55 - Techniques for 92% Efficient LCD Illumination PDF
- AN51 - Power Conditioning for Notebook and Palmtop Systems PDF
- AN46 - Efficiency and Power Characteristics of Switching Regulator Circuits PDF
Technical Articles
- The Low Output Voltage Ripple Zeta DC/DC Converter Topology
- LT3759 Wide Vin, 48V @ >100mA Output Boost Converter that Works Down to 1.6V
- Inverting Regulator Takes Inputs Up to 50V and Supports Outputs to 4A
- High Voltage, High Efficiency Positive to Negative Converter
- 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
- Wide Input Voltage Range Boost/Inverting/SEPIC Controller Works Down to an Input Voltage of 1.6V
- Inverting DC/DC Controller Converts a Positive Input to a Negative Output with a Single Inductor
Videos
- LT3757 2.9V to 40V Boost, SEPIC, Flyback or Inverting Controller
- High-Power Boost/SEPIC/Inverting DC/DC Converters with Fault Protection
- 80V Synchronous SEPIC/Inverting/Boost Controller IC with 3 Regulation Loops
- Simplify your high voltage DC/DC converters to save battery life
- LT8709 Video Product Brief
- LTC3863 Video Product Brief
- LT8471 Video Product Brief
Design Notes
- DN561 - High Voltage, High Efficiency Positive to Negative Converter PDF
- DN357 - Tiny, Highly Flexible, Dual Boost/Inverter Tracks Supplies PDF
- DN552 - Inverting Regulator Takes Inputs Up to 50V and Supports Outputs to 4A PDF
- DN545 - Monolithic Converter Delivers High Output Voltages PDF
- DN296 - LTC1871 No RSENSE Controller Is Small and Efficient in Boost, Flyback and SEPIC Applications PDF
- DN282 - Reduce Component Count and Improve Efficiency in SLIC and RF Power Supplies PDF
- DN223 - SOT-23 DC/DC Converters Generate Up to ±35V Outputs and Consume Only 20µA of Quiescent Current PDF
- DN183 - The LT1370: A 500kHz, 6A Monolithic Boost Converter PDF
- DN109 - Micropower Buck/Boost Circuits, Part 1: Converting Three Cells to 3.3V* PDF
- DN108 - 250kHz, 1mA I Q Constant Frequency Switcher Tames Portable Systems Power PDF
- DN433 - A Positive-to-Negative Voltage Converter Can Be Used for Stable Outputs Even with a Widely Varying Input PDF
- DN371 - High Efficiency 2-Phase Boost Converter Minimizes Input and Output Current Ripple PDF
- DN359 - Dual DC/DC Converter with Integrated Schottkys Generates ±40V Outputs and Consumes Only 40µA Quiescent Current PDF
- DN86 - Ultra-Low Power, High Efficiency DC/DC Converter Operates Outside the Audio Band PDF
- DN125 - Monolithic DC/DC Converters Break Speed Limits to Shrink Board Space PDF
- DN95 - Capacitor and EMI Considerations New High Frequency Switching Regulators PDF
- DN91 - 5V to 3.3V Circuit Collection PDF
- DN523 - Inverting DC/DC Controller Converts a Positive Input to a Negative Output with a Single Inductor PDF
- DN500 - Wide Input Voltage Range Boost/Inverting/SEPIC Controller Works Down to an Input Voltage of 1.6V PDF
- DN481 - 2-Phase, Dual Output Synchronous Boost Converter Solves Thermal Problems in Harsh Environments PDF
- DN435 - Single Resistor Sets Positive or Negative Output for DC/DC Converter PDF
- DN1009 - Tiny, Efficient High Power LED Camera Flash Solutions for Cell Phone Applications PDF
- DN400 - True Rail-to-Rail, High Input Impedance ADC Simplifies Precision Measurements PDF
Inverting Regulators
| SortOrder | Part# | Number of Outputs | Vin (min) (V) | Vin (max) (V) | Switch Current (typ) (A) | Vswitch Max (typ) (V) | Monolithic | Comments | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ADP5076 | 2 | 2.85 | 5.5 | 2 | 35 | Yes | 2.0A/1.2A DCDC Switching Regulators with Independent Positive and Negative Outputs | $2.19 (ADP5076ACBZ-R7) |
| 2 | ADP5072 | 2 | 2.85 | 5.5 | 1 | 35 | Yes | 1.0A/0.6A DCDC Switching Regulators with Independent Positive and Negative outputs, in WLCSP package | $2.19 (ADP5072ACBZ-R7) |
| 3 | LT8361 | 1 | 2.8 | 60 | 2 | 100 | Yes | Low IQ Boost/SEPIC/ Inverting Converter with 2A, 100V Switch | $2.06 (LT8361EMSE#PBF) |
| 4 | LTM4651 | 1 | 3.6 | 58 | 5.4 | 58 | Yes | EN55022B Compliant 58V, 24W Inverting-Output DC/DC µModule Regulator | $14.75 (LTM4651EY#PBF) |
| 5 | LTC1871X | 1 | 2.5 | 36 | 20 | - | No | Wide Input Range, Boost, Flyback and SEPIC Controller, 175C Max Junction Temp | $125.00 (LTC1871XMS#PBF) |
| 6 | LT8364 | 1 | 2.8 | 60 | 5 | 60 | Yes | Low IQ Boost/SEPIC/ Inverting Converter with 4A, 60V Switch | $2.06 (LT8364EDE#PBF) |
| 7 | LTM8049 | 2 | 2.6 | 20 | 1.25 | 25 | Yes | Dual SEPIC or Inverting µModule DC/DC Converter | $14.20 (LTM8049EY#PBF) |
| 8 | LTC3896 | 1 | 4 | 150 | 25 | 140 | No | 150V Low IQ, Synchronous Inverting DC/DC Controller | $4.70 (LTC3896EFE#PBF) |
| 9 | LT8335 | 1 | 3 | 25 | 2.5 | 28 | Yes | Low IQ Boost/SEPIC/ Inverting Converter with 2A, 28V Switch | $2.50 (LT8335EDDB#TRPBF) |
| 10 | LTC7149 | 1 | 3.4 | 60 | 6 | 60 | Yes | 60V, 4A Synchronous Step-Down Regulator for Inverting Outputs | $5.65 (LTC7149EUFD#PBF) |
| 11 | LT8714 | 1 | 4.5 | 80 | 20 | 80 | No | Bipolar Output Synchronous Controller with Seamless Four Quadrant Operation | $3.65 (LT8714EFE#PBF) |
| 12 | LT8331 | 1 | 4.5 | 100 | 600m | 140 | Yes | Low IQ Boost/SEPIC/Flyback/Inverting Converter with 0.5A, 140V Switch | $2.95 (LT8331EMSE#PBF) |
| 13 | ADP5074 | 1 | 2.85 | 15 | 2.75 | 39 | Yes | 2.4 A, DC-to-DC Inverting Regulator | $1.79 (ADP5074ACPZ-R7) |
| 14 | ADP5073 | 1 | 2.85 | 15 | 1.375 | 39 | Yes | 1.2 A, DC-to-DC Inverting Regulator | $1.49 (ADP5073ACPZ-R7) |
| 15 | LT8330 | 1 | 3 | 40 | 1.2 | 60 | Yes | Low IQ Boost/SEPIC/Inverting Converter with 1A, 60V Switch | $2.50 (LT8330EDDB#TRPBF) |
| 16 | ADP5075 | 1 | 2.85 | 15 | 960m | 39 | Yes | 800 mA, DC-to-DC Inverting Regulator | $0.99 (ADP5075ACBZ-R7) |
| 17 | LT8570-1 | 1 | 2.55 | 40 | 375m | 65 | Yes | Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization | $2.25 (LT8570EMS8E-1#PBF) |
| 18 | LT8570 | 1 | 2.55 | 40 | 750m | 65 | Yes | Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Synchronization | $2.25 (LT8570EDD#PBF) |
| 19 | ADP5070 | 2 | 2.85 | 15 | 1 | 39 | Yes | 1 A/0.6 A, DC-to-DC Switching Regulator with Independent Positive and Negative Outputs | $2.19 (ADP5070ACPZ) |
| 20 | ADP5071 | 2 | 2.85 | 15 | 2 | 39 | Yes | 2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs | $2.39 (ADP5071ACPZ) |
| 21 | LT8709 | 1 | -80 | -4.5 | 25 | 80 | No | Negative Input Synchronous Multi-Topology DC/DC Controller | $3.65 (LT8709EFE#PBF) |
| 22 | LT8580 | 1 | 2.5 | 40 | 1.5 | 65 | Yes | Boost/SEPIC/Inverting DC/DC with 1A, 65V Switch, LT3580 Pin Compatible | $2.35 (LT8580EDD#PBF) |
| 23 | LT8710 | 1 | 4.5 | 80 | 25 | 80 | No | Synchronous SEPIC/Inverting/Boost Controller with Output Current Control | $3.41 (LT8710EFE#PBF) |
| 24 | LT8471 | 2 | 2.6 | 50 | 2.55 | 50 | Yes | Dual, Multitopology (Buck/Boost/SEPIC/Inverter/Flyback) | $3.75 (LT8471EFE#PBF) |
| 25 | LTM8045 | 1 | 2.8 | 18 | 1.26 | 18 | Yes | Inverting or SEPIC µModule DC/DC Converter with Up to 700mA Output Current | $6.97 (LTM8045EY#PBF) |
| 26 | LTC3863 | 1 | 3.5 | 60 | 25 | 190 | No | 60V Low IQ Inverting DC/DC Controller | $2.06 (LTC3863EDE#PBF) |
| 27 | LT3959 | 1 | 1.6 | 40 | 7 | 40 | Yes | Wide Input Voltage Range Boost/SEPIC/Inverting Converter with 6A, 40V Switch | $3.05 (LT3959EUHE#PBF) |
| 28 | LT3957A | 1 | 3 | 40 | 5.9 | 40 | Yes | Multi-topology Converter 5A, 40V Switch, Improved Load Transient Over LT3957 | $2.95 (LT3957AEUHE#PBF) |
| 29 | LT8582 | 2 | 2.5 | 22 | 4.3 | 42 | Yes | Dual 3A Boost/Inverting/SEPIC DC/DC Converter with Fault Protection | $3.75 (LT8582EDKD#PBF) |
| 30 | LT3759 | 1 | 1.6 | 42 | 25 | 42 | No | Wide Input Voltage Range Boost/SEPIC/Inverting Controller | $2.35 (LT3759EMSE#PBF) |
| 31 | LT3958 | 1 | 5 | 80 | 4 | 84 | Yes | High Input Voltage, Boost, Flyback, SEPIC and Inverting Converter | $3.05 (LT3958EUHE#PBF) |
| 32 | LT3581 | 1 | 2.3 | 22 | 4.3 | 42 | Yes | 3.3A Boost/Inverting DC/DC Converter | $2.45 (LT3581EDE#PBF) |
| 33 | LT3579-1 | 1 | 2.5 | 16 | 7.5 | 42 | Yes | 6A Boost/Inverting DC/DC Converter with Fault Protection, Dual Phase Capable | $3.30 (LT3579EUFD-1#PBF) |
| 34 | LT3579 | 1 | 2.5 | 16 | 7.5 | 42 | Yes | 6A Boost/Inverting DC/DC Converter with Fault Protection | $3.30 (LT3579EUFD#PBF) |
| 35 | LT3758A | 1 | 5.5 | 100 | 25 | 350 | No | Multi-Topology Controller - Improved Load Transient Over LT3758 | $2.35 (LT3758AEDD#PBF) |
| 36 | LT3582 | 2 | 2.475 | 5.5 | 350m | 16.5 | Yes | I2C Programmable Boost & Inverter with OTP, -5 and -12 Offer Fixed Vout | $2.25 (LT3582EUD#PBF) |
| 37 | LT3757A | 1 | 2.9 | 40 | 25 | 350 | No | Multi-Topology Controller - Improved Load Transient Over LT3757 | $2.06 (LT3757AEDD#PBF) |
| 38 | LT3587 | 3 | 2.5 | 6 | 990m | 40 | Yes | High Voltage Monolithic Inverter and Dual Boost | $2.95 (LT3587EUD#PBF) |
| 39 | LT3580 | 1 | 2.5 | 32 | 2.5 | 42 | Yes | Boost/Inverting DC/DC Converter with Soft-Start | $2.00 (LT3580EDD#PBF) |
| 40 | LTC1871-1 | 1 | 2.5 | 36 | 20 | 60 | No | No RSENSE Current Mode Boost, LTC1871-1 Lower Burst Mode Threshold | $2.65 (LTC1871EMS-1#PBF) |
| 41 | LT3844 | 1 | 4 | 60 | 5 | 65 | No | Wide Input Voltage Range, Burst Mode | $3.10 (LT3844EFE#PBF) |
| 42 | LT3487 | 2 | 2.3 | 16 | 1.09 | 32 | Yes | Boost and Inverting Switching Regulator for CCD Bias | $2.30 (LT3487EDD#PBF) |
| 43 | LT3483A | 1 | 2.5 | 16 | 400m | 40 | Yes | Inverting Micropower DC/DC with Schottky, 400mA Iswitch | $2.11 (LT3483AEDC#TRPBF) |
| 44 | LT3483 | 1 | 2.5 | 16 | 200m | 40 | Yes | Inverting Micropower DC/DC with Schottky, 200mA Iswitch | $2.11 (LT3483EDC#TRPBF) |
| 45 | LT3479 | 1 | 2.3 | 24 | 4.5 | 42 | Yes | 3A, Full Featured DC/DC Converter with Soft-Start and Inrush Protection | $3.00 (LT3479EDE#PBF) |
| 46 | LT3472 | 2 | 2.2 | 16 | 400m | 36 | Yes | Boost and Inverting DC/DC Converter for CCD Bias | $1.95 (LT3472EDD#PBF) |
| 47 | LT3471 | 2 | 2.4 | 16 | 2.05 | 42 | Yes | Dual 1.3A, 1.2MHz Boost/Inverter in 3mm × 3mm DFN | $2.80 (LT3471EDD#PBF) |
| 48 | LT3462A | 1 | 2.5 | 16 | 420m | 40 | Yes | Inverting 2.7MHz DC/DC Converters with Integrated Schottky | $2.11 (LT3462AES6#TRPBF) |
| 49 | LT3462 | 1 | 2.5 | 16 | 420m | 40 | Yes | Inverting 1.2MHz DC/DC Converters with Integrated Schottky | $2.11 (LT3462ES6#TRPBF) |
| 50 | LT3463A | 2 | 2.2 | 15 | 250m | 42 | Yes | LT3463A Offers 250mA Boost, 400mA Inverter | $1.95 (LT3463AEDD#PBF) |
| 51 | LT3463 | 2 | 2.2 | 15 | 250m | 42 | Yes | Dual 250mA Boost/Inverter | $1.95 (LT3463EDD#PBF) |
| 52 | LTC1871-7 | 1 | 2.5 | 36 | 20 | 60 | No | LTC1871-7 Drives 6V-gate N-Channel MOSFETs | $2.65 (LTC1871EMS-7#PBF) |
| 53 | LTC3704 | 1 | 2.5 | 36 | 20 | 80 | No | Positive to negative converter | $1.85 (LTC3704EMS#PBF) |
| 54 | LT1945 | 2 | 1.2 | 15 | 350m | 36 | Yes | 350mA Boost and 350mA Inverter in Single Pakcage | $2.06 (LT1945EMS#PBF) |
| 55 | LTC1871 | 1 | 2.5 | 36 | 20 | 60 | No | No RSENSE Current Mode Boost, Flyback and SEPIC Controller | $2.65 (LTC1871EMS#PBF) |
| 56 | LTC1624 | 1 | 3.5 | 36 | 5 | 36 | No | SO-8 N-Channel Switching Regulator Controller | $3.50 (LTC1624CS8#PBF) |
| 57 | LT1931A | 1 | 2.6 | 16 | 1.2 | 36 | Yes | Inverting DC/DC Converters in ThinSOT, LT1931A 2.2MHz Switching | $2.06 (LT1931AES5#TRPBF) |
| 58 | LT1931 | 1 | 2.6 | 16 | 1.2 | 36 | Yes | Inverting DC/DC Converters in ThinSOT, LT1931 1.2MHz Switching | $2.06 (LT1931ES5#TRPBF) |
| 59 | LT1617-1 | 1 | 1 | 15 | 100m | 36 | Yes | Micropower Inverting DC/DC Converters in SOT-23, LT1617-1 100mA Iswitch | $1.70 (LT1617ES5-1#TRPBF) |
| 60 | LT1617 | 1 | 1.2 | 15 | 350m | 36 | Yes | Micropower Inverting DC/DC Converters in SOT-23, LT1617 350mA Iswitch | $1.70 (LT1617ES5#TRPBF) |
| 61 | LT1614 | 1 | 920m | 12 | 1.2 | 30 | Yes | Vin to 1V, low battery detect | $2.40 (LT1614CS8#PBF) |
| 62 | LT1611 | 1 | 1.1 | 10 | 800m | 36 | Yes | Low noise < 1mVpp | $2.00 (LT1611CS5#TRPBF) |
| 63 | LT1377 | 1 | 2.7 | 30 | 2 | 35 | Yes | LT1377 Offers 1MHz Switching Frequency | $4.20 (LT1377CS8#PBF) |
| 64 | LT1372HV | 1 | 2.7 | 30 | 2 | 42 | Yes | LT1372HV Offers 42V Switch, Regulates Positive or Negative | $3.80 (LT1372HVCN8#PBF) |
| 65 | LT1372 | 1 | 2.7 | 30 | 2 | 35 | Yes | Regulates Positive or Negative Outputs, 500kHz Switching | $3.50 (LT1372CN8#PBF) |
| 66 | LTC1174HV | 1 | 4 | 18.5 | 600m | 18.5 | Yes | Fixed Outputs of 3.3V, 5V Available | $4.00 (LTC1174HVCN8#PBF) |
| 67 | LTC1174 | 1 | 4 | 13.5 | 600m | 13.5 | Yes | Fixed Outputs of 3.3V, 5V Available | $3.50 (LTC1174CN8#PBF) |
| 68 | LT1076HV | 1 | 7.3 | 60 | 2.6 | 75 | Yes | Programmable Current Limit, HV Vin Up To 60V | $6.00 (LT1076HVCT#06PBF) |
| 69 | LT1076 | 1 | 7.3 | 45 | 2.6 | 65 | Yes | Programmable Current Limit | $3.40 (LT1076CT#06PBF) |
| 70 | LT1074HV | 1 | 7.3 | 64 | 6.5 | 75 | Yes | Programmable Current Limit, HV Vin Up To 60V | $7.60 (LT1074HVCT#06PBF) |
| 71 | LT1074 | 1 | 7.3 | 45 | 6.5 | 65 | Yes | Programmable Current Limit | $5.05 (LT1074CT#06PBF) |
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