Multitopology DC/DC
Analog Devices’ Multi-topology DC/DC power management products incorporate DC/DC regulators of different types and topologies. Products in this category offer two or more regulators, combining buck (step-down), boost (step-up), buck/boost (step-down / step-up), SEPIC, linear and/or inverting switching regulators in a single, compact package. Applications for these multitopology DC/DC products include split positive and negative supplies for high performance op amps, DACs, ADCs and signal conditioning circuitry, feature-rich portable, industrial or medical devices or space-constrained systems requiring multiple power supplies combined into a single, compact IC.
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Design Notes
- Triple Bucks Plus a Boost Controller to Meet Tough Requirements of Wide Range VIN Automotive Applications
- DN357 - Tiny, Highly Flexible, Dual Boost/Inverter Tracks Supplies PDF
- DN349 - Quad Output Switching Converter Provides Power for Large TFT LCD Panels PDF
- DN359 - Dual DC/DC Converter with Integrated Schottkys Generates ±40V Outputs and Consumes Only 40µA Quiescent Current PDF
- DN278 - Efficient DC/DC Converter Provides Two 15A Outputs from a 3.3V Backplane PDF
- DN441 - Compact Triple Step-Down Regulator Offers LDO Driver and Output Tracking and Sequencing PDF
- DN440 - Versatile TFT LCD Bias Supply and White LED Driver in a 4mm × 4mm QFN PDF
- DN419 - One IC Generates Three Sub-2V Power Rails from a Li-Ion Cell PDF
- DN400 - True Rail-to-Rail, High Input Impedance ADC Simplifies Precision Measurements PDF
- Design Solutions 10 - Active Voltage Positioning Reduces Output Capacitors PDF
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Technical Articles Page
- 4mm × 7mm IC Produces Seven Regulated Outputs and a Dual-String LED Driver
- ±32V Triple-Output Supply for LCDs, CCDs and LEDs Includes Fault Protection in a 3mm × 3mm QFN
- 5-Output High Current Power Supply for TFT-LCDs in a Low Profile QFN Features Space-Saving 2MHz Switching Regulators
- Complete Power Solution for Digital Cameras and Other Complex Compact Portable Applications
- Quad Output Regulator Meets Varied Demands of Multiple Power Supplies
- Multi-Rail DC/DC Converter in a 3mm × 3mm QFN Takes Inputs as Low as 0.7V
- Monolithic 2A Buck Regulator Plus Linear Regulator Simplifies Wide Input Voltage Applications
- Complete 3-Rail Power Supply in a 4mm × 4mm QFN Package
- 0.25in2 × 1.8mm Dual Output Converter for Li-Ion to 3.3V and 1.8V
- Triple Output LCD Power Supply Delivers 95% Efficiency from a Tiny 3mm x 3mm Package
- Efficient DC/DC Converter Provides Two 15A Outputs from a 3.3V Backplane
- Triple, High Output Current Supply Requires only 3.3V Input and Minimal Input Capacitance
Multitopology DC/DC
| SortOrder | Part# | Number of Outputs | Buck Output Current (typ) (A) | Buck-Boost Output Current (typ) (A) | Boost Switch Current (typ) (A) | Inverting Switch Current (typ) (A) | LDO Output Current (typ) (A) | Comments | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ADP1032 | 2 | - | - | - | - | - | Isolated Flyback with additional Buck and Inverter, plus High Speed Isolated Digital Channels | $5.18 (ADP1032ACPZ-4-R7) |
| 2 | LTC7818 | 3 | 25, 25 | - | 10 | - | - | 40V, Low IQ, 3MHz, Triple Output Buck/Buck/Boost Synchronous Controller | $3.95 (LTC7818EUJ#PBF) |
| 3 | LTC7817 | 3 | - | - | - | - | - | 40V, Low IQ, 3MHz, Triple Output Buck/Buck/Boost Synchronous Controller | $3.75 (LTC7817EUHF#PBF) |
| 4 | ADP5360 | 3 | 500m | 200m | - | - | - | Advanced Battery Management PMIC with Ultra Low Power Fuel Gauge, Battery Protection, Buck and Buck Boost | $1.71 (ADP5360ACBZ-1-R7) |
| 5 | ADP1031 | 3 | 300m | - | - | 300m | - | Isolated Flyback with additional Buck and Inverter, plus High Speed Isolated Digital Channels | $5.18 (ADP1031ACPZ-4) |
| 6 | ADP5076 | 2 | - | - | 2 | 1.2 | - | 2.0A/1.2A DCDC Switching Regulators with Independent Positive and Negative Outputs | $2.19 (ADP5076ACBZ-R7) |
| 7 | ADP5072 | 2 | - | - | 1 | 600m | - | 1.0A/0.6A DCDC Switching Regulators with Independent Positive and Negative outputs, in WLCSP package | $2.19 (ADP5072ACBZ-R7) |
| 8 | LTC7815 | 3 | 25, 25 | - | 25 | - | - | Low IQ, 2.25MHz, Triple Output, Buck/Buck/Boost Synchronous Controller | $4.35 (LTC7815EUHF#PBF) |
| 9 | ADP2450 | 2 | 500m | - | - | - | - | Power Management IC for Circuit Breaker Application | $1.50 (ADP2450ACPZ-1-R7) |
| 10 | LT8603 | 4 | 1.5, 1.8, 2.5 | - | 20 | - | - | 42V, Low IQ, Quad Output Triple Monolithic Buck Converter and Boost Controller | $3.63 (LT8603JUJ#PBF) |
| 11 | LTC7813 | 2 | 20 | - | 20 | - | - | Low IQ, 60V Synchronous Boost+Buck Controller | $4.82 (LTC7813EUH#PBF) |
| 12 | LTC7812 | 2 | 20 | - | 20 | - | - | Low IQ, 38V Synchronous Boost+Buck Controller | $4.00 (LTC7812EUH#PBF) |
| 13 | LTC3899 | 3 | 15, 15 | - | 15 | - | - | 60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller | $4.95 (LTC3899EUHF#PBF) |
| 14 | ADP5070 | 2 | - | - | 1 | 600m | - | 1 A/0.6 A, DC-to-DC Switching Regulator with Independent Positive and Negative Outputs | $2.19 (ADP5070ACPZ) |
| 15 | ADP5071 | 2 | - | - | 2 | 1.2 | - | 2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs | $2.39 (ADP5071ACPZ) |
| 16 | LT3668 | 3 | 400m | - | - | - | 200m, 200m | 40V 400mA Step-Down Switching Reg. with Dual Tracking LDOs | $2.55 (LT3668EMSE#PBF) |
| 17 | LT8471 | 2 | 2, 2 | - | 2, 2 | 2, 2 | - | Dual, Multitopology (Buck/Boost/SEPIC/Inverter/Flyback) | $3.75 (LT8471EFE#PBF) |
| 18 | LT3667 | 3 | 400m | - | - | - | 200m, 200m | 60V Transient Protection, Dual LDO | $2.55 (LT3667EMSE#PBF) |
| 19 | ADP5080 | 8 | 800m, 1.15, 1.5, 2, 3 | 2 | - | - | 300m, 400m | Tiny 15V PMU with 6 CH DC/DCs and 2 LDOs for Multicell Lithium Ion Battery Applications | $3.99 (ADP5080ACBZ-1-RL) |
| 20 | LTC3676 | 7 | 1.5, 1.5, 2.5, 2.5 | - | - | - | 300m, 300m, 300m | LTC3676-1 has ±1.5A DDR, VTTR ref | $5.50 (LTC3676EUJ#PBF) |
| 21 | LTC3859AL | 3 | 25, 25 | - | 25 | - | - | Triple Buck/Buck/Boost Synch Controller, Improved Burst Mode | $4.35 (LTC3859ALEUHF#PBF) |
| 22 | ADP5052 | 5 | 1.2, 1.2, 4, 4 | - | - | - | 200m | 5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO Regulator | $3.59 (ADP5052ACPZ-R7) |
| 23 | ADP5050 | 5 | 1.2, 1.2, 4, 4 | - | - | - | 200m | 5-Channel Integrated Power Solution with Quad Buck Regulators, 200 mA LDO Regulator and I2C interfac | $4.39 (ADP5050ACPZ-R7) |
| 24 | LT8582 | 2 | - | - | 3, 3 | 4.3 | - | Dual 3A Boost/Inverting/SEPIC DC/DC Converter with Fault Protection | $3.75 (LT8582EDKD#PBF) |
| 25 | ADP5041 | 3 | 1.2 | - | - | - | 300m, 300m | Micro PMU with 1.2 A Buck, Two 300 mA LDOs, Supervisory, Watchdog and Manual Reset | $1.79 (ADP5041ACPZ-1-R7) |
| 26 | ADP5040 | 3 | 1.2 | - | - | - | 300m, 300m | Micro PMU with 1.2 A Buck Regulator and Two 300 mA LDOs | $1.39 (ADP5040ACPZ-1-R7) |
| 27 | ADP5037 | 4 | 800m, 800m | - | - | - | 300m, 300m | Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs | $1.69 (ADP5037ACPZ-1-R7) |
| 28 | ADP5024 | 3 | 1.2, 1.2 | - | - | - | 300m | Dual 3 MHz, 1200 mA Buck Regulators with One 300 mA LDO | $1.79 (ADP5024ACPZ-1-R7) |
| 29 | ADP5023 | 3 | 800m, 800m | - | - | - | 300m | Dual 3 MHz, 800 mA Buck Regulator with One 300 mA LDO | $1.59 (ADP5023ACPZ-1-R7) |
| 30 | LT3507A | 4 | 1.8, 1.8, 2.7 | - | - | - | 1 | Triple Step-Down (2.7A & Two 1.8A), LDO, Improved Iout | $4.25 (LT3507AEUHF#PBF) |
| 31 | ADP5034 | 4 | 1.2, 1.2 | - | - | - | 300m, 300m | Dual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs | $1.99 (ADP5034ACPZ-1-R7) |
| 32 | ADP5033 | 4 | 800m, 800m | - | - | - | 300m, 300m | Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs | $1.90 (ADP5033ACBZ-10-R7) |
| 33 | LT3645 | 2 | 500m | - | - | - | 200m | 36V 500mA Step-Down Regulator and 200mA LDO | $2.25 (LT3645EUD#PBF) |
| 34 | ADP5043 | 2 | 800m | - | - | - | 300m | Micro-PMU with 0.8 A Buck, 300 mA LDO, Supervisory, Watchdog, and Manual Reset | $1.79 (ADP5043ACPZ-1-R7) |
| 35 | ADP5042 | 3 | 800m | - | - | - | 300m, 300m | Micro PMU with 0.8 A Buck, Two 300 mA LDOs, Supervisory, Watchdog and Manual Reset | $1.99 (ADP5042ACPZ-1-R7) |
| 36 | LTC3675 | 7 | 500m, 500m, 1, 1 | 1 | 1 | - | 25m | 7-Channel Configurable High Power PMIC | $5.05 (LTC3675EUFF#PBF) |
| 37 | LTC3589-2 | 8 | 1, 1, 1.6 | 1.2 | - | - | 25m, 250m, 250m, 250m | 8-Output I2C Regulator, PGOOD Timeout Disabled, 2ms PWR_ON to Wake Delay, No Wait to Enable | $4.65 (LTC3589EUJ-2#PBF) |
| 38 | LTC3589-1 | 8 | 1, 1, 1.6 | 1.2 | - | - | 25m, 250m, 250m, 250m | 8-Output I2C Regulator, PGODD Timeout Disabled, 2ms PWR_ON to Wake Delay | $4.65 (LTC3589EUJ-1#PBF) |
| 39 | LTC3589 | 8 | 1, 1, 1.6 | 1.2 | - | - | 25m, 250m, 250m, 250m | 8-Output I2C Regulator, PGOOD Timeout Enabled, 50ms PWR_ON to Wake Delay | $4.65 (LTC3589EUJ#PBF) |
| 40 | LT3694 | 3 | 2.6 | - | - | - | 1 | 36V, 2.6A Monolithic Buck Regulator with Dual LDO | $3.85 (LT3694EUFD#PBF) |
| 41 | LTC3521 | 3 | 600m, 600m | 1 | - | - | - | Wide Vin, 1A Buck-Boost DC/DC and Dual 600mA Buck DC/DC Converters | $3.25 (LTC3521EUF#PBF) |
| 42 | LT3582 | 2 | - | - | 350m | 600m | - | I2C Programmable Boost & Inverter with OTP, -5 and -12 Offer Fixed Vout | $2.25 (LT3582EUD#PBF) |
| 43 | LT3587 | 3 | - | - | 20m, 50m | 100m | - | High Voltage Monolithic Inverter and Dual Boost | $2.95 (LT3587EUD#PBF) |
| 44 | LT3570 | 2 | 1.5 | - | 1.5 | - | 1 | 1.5A Buck, 1.5A Boost and LDO Controller | $2.95 (LT3570EUF#PBF) |
| 45 | LT3513 | 5 | 2.5 | - | 250m, 1.6 | 250m | - | 2MHz High Current 5-Output Regulator for TFT-LCD Panels | $4.25 (LT3513EUHF#PBF) |
| 46 | LTC3100 | 3 | 250m | - | 700m | - | 100m | 700mA Boost, 250mA Buck, 100mA LDO | $3.10 (LTC3100EUD#PBF) |
| 47 | LT3507 | 4 | 1.5, 1.5, 2.4 | - | - | - | 1 | Triple Step-Down (2.4A & Two 1.5A), LDO Controller | $4.25 (LT3507EUHF#PBF) |
| 48 | LTC3523 | 2 | 400m | - | 600m | - | - | Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters | $2.95 (LTC3523EUD#PBF) |
| 49 | LT1939 | 2 | 2 | - | - | - | 1 | 2A, 25V Step-Down with LDO Controller | $3.05 (LT1939EDD#PBF) |
| 50 | LTC3672B-2 | 3 | 500m | - | - | - | 150m, 150m | 400mA Buck (Fixed 1.2V) with Dual 150mA LDOs (Fixed 1.8V & 2.8V) | $1.95 (LTC3672BEDC-2#TRPBF) |
| 51 | LTC3520 | 2 | 600m | 1 | - | - | - | Dual Output-Synchronous 1A Buck-Boost and a 600mA Buck | $3.50 (LTC3520EUF#PBF) |
| 52 | LT3500 | 2 | 2 | - | - | - | 1 | 2A, 36V Step-Down with LDO Controller | $3.25 (LT3500EDD#PBF) |
| 53 | LTC3672B-1 | 3 | 500m | - | - | - | 150m, 150m | 400mA Buck (Fixed 1.8V) with Dual 150mA LDOs (Fixed 1.2V & 2.8V) | $1.95 (LTC3672BEDC-1#TRPBF) |
| 54 | LTC3522 | 2 | 200m | 400m | - | - | - | Dual Output Synchronous 400mA Buck-Boost and 200mA Buck | $2.50 (LTC3522EUD#PBF) |
| 55 | LTC3670 | 3 | 500m | - | - | - | 150m, 150m | Monolithic 400mA Buck Regulator with Dual 150mA LDOs | $1.95 (LTC3670EDDB#TRPBF) |
| 56 | LTC3537 | 2 | - | - | 600m | - | 100m | 2.2 MHz, 600mA Synchronous Step-Up DC/DC Converter and 100mA LDO | $2.40 (LTC3537EUD#PBF) |
| 57 | LTC3524 | 4 | - | - | 2m, 25m | 2m | - | Adjustable TFT Bias Supply with WLED Driver | $2.25 (LTC3524EUF#PBF) |
| 58 | LTC3541-3 | 2 | 500m | - | - | - | 300m | 500mA Buck + 300mA VLDO, LTC3541-3 LDO Powers Up First, 1.8V Fixed Vout | $1.89 (LTC3541EDD-3#PBF) |
| 59 | LTC3541-2 | 2 | 500m | - | - | - | 300m | 500mA Buck + 300mA VLDO, LTC3541-2 Buck Powers Up First, 1.875V Fixed Vout | $1.89 (LTC3541EDD-2#PBF) |
| 60 | LTC3446 | 3 | 1 | - | - | - | 300m, 300m | 1A Buck Regulator with Dual 600mA VLDO Regulators | $2.75 (LTC3446EDE#PBF) |
| 61 | LTC3541-1 | 2 | 500m | - | - | - | 300m | 500mA Buck + 300mA VLDO, LTC3541-1 LDO Powers Up First | $1.89 (LTC3541EDD-1#PBF) |
| 62 | LTC3541 | 2 | 500m | - | - | - | 300m | 500mA Buck + 300mA VLDO, LTC3541 Buck Powers Up First | $1.89 (LTC3541EDD#PBF) |
| 63 | LTC3445 | 3 | 600m | - | - | - | 50m, 50m | I2C Controllable 600mA Buck with Two 50mA LDOs | $2.45 (LTC3445EUF#PBF) |
| 64 | LT1942 | 4 | - | - | 80m, 80m | - | - | Quad DC/DC Converter for Triple Output TFT Supply Plus LED Driver | $2.75 (LT1942EUF#PBF) |
| 65 | LT3472 | 2 | - | - | 20m | 50m | - | Boost and Inverting DC/DC Converter for CCD Bias | $1.95 (LT3472EDD#PBF) |
| 66 | LT3471 | 2 | - | - | 1.3, 1.3 | 1.3 | - | Dual 1.3A, 1.2MHz Boost/Inverter in 3mm × 3mm DFN | $2.80 (LT3471EDD#PBF) |
| 67 | LT1941 | 3 | 2, 3 | - | 1.5 | - | - | Triple Output 3A Buck, 2A Buck, 1.5A Inverting/Boost | $5.25 (LT1941EFE#PBF) |
| 68 | LTC3450 | 3 | - | - | 10m | 500µ | - | Triple Output for TFT-LCD Applications | $2.50 (LTC3450EUD#PBF) |
| 69 | LT3463A | 2 | - | - | 250m, 400m | 400m | - | LT3463A Offers 250mA Boost, 400mA Inverter | $1.95 (LT3463AEDD#PBF) |
| 70 | LT3463 | 2 | - | - | 250m, 250m | 250m | - | Dual 250mA Boost/Inverter | $1.95 (LT3463EDD#PBF) |
| 71 | LT1943 | 4 | 2.4 | - | 350m, 2.6 | 350m | - | High Current Quad Output Regulator for TFT LCD Displays | $4.75 (LT1943EFE#PBF) |
| 72 | LT1945 | 2 | - | - | 350m | 350m | - | 350mA Boost and 350mA Inverter in Single Pakcage | $2.06 (LT1945EMS#PBF) |
| 73 | LTC1876 | 3 | 25, 25 | - | 1 | - | - | Dual Synchronous Buck And One Boost Controller | $5.95 (LTC1876EG#PBF) |
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