Ultralow Noise Regulators

Analog Devices offers a unique family of ultralow noise linear and switching regulators for applications that have severe noise requirements—for example, sensitive RF or audio circuits in a confined environment. These regulators are offered in step-up, step-down, inverting, flyback, and Ćuk topologies. Noise levels are typically in the tens of microvolts.
Product Selection Table

chip-LT8650S-2xSilent Switcher®: High Efficiency, Low EMI

Silent Switchers from ADI offer high efficiency at high switching frequencies while maintaining ultralow EMI emissions, and the newest addition to the Silent Switcher family adds unrivaled ease-of-use: The LT8650S delivers a compact dual-output 4A synchronous step-down solution that is up to 95% efficient at 2MHz while easily passing the CISPR 25 class 5 peak EMI limits. View the product line and get full specifications on our Silent Switcher page.


Silent Switcher products, tools, and resources

Ultralow Noise Regulators

  Hold Shift Key for secondary sorting
SortOrderPart#Number of OutputsVin
(min)
(V)
Vin
(max)
(V)
TopologyOutput Current
(typ)
(A)
MonolithicEMI FeaturesCommentsPrice (1000+)
($ US)
1LTC3309A 1 2.25 5.5 Buck 6 Yes Silent Switcher 5V, 6A Synchronous Step-Down Silent Switcher $1.90 (LTC3309AEV#TRMPBF)
2LT8636 1 3.4 42 Buck 5 Yes Silent Switcher 42V, 5A Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current $3.70 (LT8636EV#PBF)
3LTM8024 (single output) 1 3 40 Buck 7 Yes Low EMI, Silent Switcher 40VIN, Dual 3.5A or Single 7A Silent Switcher μModule Regulator $11.65 (LTM8024EY#PBF)
4LTM8024 (dual output) 2 3 40 Buck 3.5 Yes Low EMI, Silent Switcher 40VIN, Dual 3.5A or Single 7A Silent Switcher μModule Regulator $11.65 (LTM8024EY#PBF)
5LTM8078 (single output) 1 3 40 Buck 2.8 Yes Adjustable Slew Rate, Silent Switcher, Spread Spectrum Dual 1.4A, Single 2.8A Step-Down Silent Switcher μModule Regulator $6.53 (LTM8078EY#PBF)
6LTM8078 (dual output) 2 3 40 Buck 1.4 Yes Adjustable Slew Rate, Silent Switcher, Spread Spectrum Dual 1.4A, Single 2.8A Step-Down Silent Switcher μModule Regulator $6.53 (LTM8078EY#PBF)
7LT8650S-1 2 3 42 Buck 4 Yes Silent Switcher 2 High Temp Dual Channel 4A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2µA Quiescent Current $6.58 (LT8650SHV-1#PBF)
8LT8645S-2 1 3.4 65 Buck 8 Yes Silent Switcher 65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current $4.75 (LT8645SEV-2#PBF)
9LTC7151S 1 3.1 20 Buck 15 Yes Silent Switcher 2 20V, 15A Synchronous Step-Down Silent Switcher 2 Regulator $3.75 (LTC7151SEV#PBF)
10LTM8074 1 3.2 40 Buck 1.2 Yes Silent Switcher 40VIN, 1.2A Silent Switcher µModule Regulator $3.83 (LTM8074EY#PBF)
11LTM8071 1 3.6 60 Buck 5 Yes Silent Switcher 60VIN, 5A Silent Switcher µModule Regulator $14.53 (LTM8071EY#PBF)
12LTM8002 1 3.4 40 Buck 2.5 Yes Silent Switcher 40VIN, 2.5A Silent Switcher µModule Regulator $9.12 (LTM8002IY#PBF)
13LTC3310S 1 2.25 5.5 Buck 10 Yes Silent Switcher 2 5V, 10A Synchronous Step-Down Silent Switcher 2 in 3mm x 3mm LQFN $2.60 (LTC3310SEV#PBF)
14LTM4653 1 3.1 58 Buck 4 Yes EN55022 Class B Certified EN55022B Compliant 58V, 4A Step-Down DC/DC µModule Regulator $12.55 (LTM4653EY#PBF)
15LT8646S 1 3.4 65 Buck 8 Yes Silent Switcher 2, Spread Spectrum 65V, 8A Step-Down Silent Switcher 2, External Compensation $5.95 (LT8646SEV#PBF)
16LT8642S 1 2.8 18 Buck 10 Yes Silent Switcher 2 18V, 10A Synchronous Step-Down Silent Switcher 2 $4.15 (LT8642SEV#PBF)
17LTM8065 1 3.4 40 Buck 2.5 Yes Silent Switcher 40VIN, 2.5A Silent Switcher µModule Regulator $7.75 (LTM8065EY#PBF)
18LTM8063 1 3.2 40 Buck 2 Yes Silent Switcher 40VIN, 2A Silent Switcher µModule Regulator $6.95 (LTM8063EY#PBF)
19LTM4651 1 3.6 58 Inverting- Yes EN55022 Class B Certified EN55022B Compliant 58V, 24W Inverting-Output DC/DC µModule Regulator $14.75 (LTM4651EY#PBF)
20LT8650S 2 3 42 Buck 4 Yes Silent Switcher 2 Dual Channel 4A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2µA Quiescent Current $5.75 (LT8650SEV#PBF)
21LTC7150S 1 3.1 20 Buck 20 Yes Silent Switcher 2 20V, 20A Synchronous Step-Down Regulator $5.60 (LTC7150SEY#PBF)
22LTC7103 1 4.4 105 Buck 2.3 Yes Low EMI 105V, 2.3A Low EMI Synchronous Step-Down Regulator $4.50 (LTC7103EUHE#PBF)
23LT8643S 1 3.4 42 Buck 6 Yes Silent Switcher 2 42V, 6A Sync Step-Down Silent Switcher 2 with 2.5µA Iq, External Comp $4.65 (LT8643SEV#PBF)
24LT8609S 1 3 42 Buck 2 Yes Silent Switcher 2, Spread Spectrum 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current $2.75 (LT8609SEV#PBF)
25LTM8073 1 3.4 60 Buck 3 Yes Silent Switcher 60VIN, 3A Silent Switcher µModule Regulator $10.58 (LTM8073EY#PBF)
26LT8645S 1 3.4 65 Buck 8 Yes Silent Switcher 2 65V, 8A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current $4.95 (LT8645SEV#PBF)
27LT8640S 1 3.4 42 Buck 6 Yes Silent Switcher 2 42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5µA Quiescent Current $4.65 (LT8640SEV#PBF)
28LT8643S-2 1 3.4 42 Buck 6 Yes Silent Switcher 2 42V, 6A Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current $4.65 (LT8643SEV-2#PBF)
29LT8640S-2 1 3.4 42 Buck 6 Yes Silent Switcher 42V, 6A Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current $4.65 (LT8640SEV-2#PBF)
30LT8641 1 3 65 Buck 3.5 Yes Silent Switcher, Spread Spectrum 65V, 3.5A Synchronous Step-Down Silent Switcher with 2.5µA Iq $4.35 (LT8641EUDC#PBF)
31LT8640 1 3.4 42 Buck 5 Yes Silent Switcher Step-Down Silent Switcher, LT8640 Pulse Skipping, /-1 Forced Continuous $4.35 (LT8640EUDC#PBF)
32LT3999 1 2.7 36 Push-Pull 1 Yes- Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control $2.75 (LT3999EDD#PBF)
33LT3048-15 1 2.7 4.8 Boost, LDO- Yes LDO Post Regulator Low Noise Bias Generator in 2mm × 2mm, Fixed 15Vout $1.65 (LT3048EDC-5#TRPBF)
34LTM8028 1 6 36 Buck 5 Yes LDO Post Regulator 36Vin, UltraFast, Low Output Noise 5A uModule Regulator $14.20 (LTM8028EY#PBF)
35LT8614 1 3.4 42 Buck 4 Yes Silent Switcher Silent Switcher Architecture Minimizes EMI, 2.5µA Low Ripple Burst Mode $4.25 (LT8614EUDC#PBF)
36LTM4613 1 5 36 Buck 8 Yes EN55022 Class B Certified EN55022B Compliant 36Vin, 15Vout, 8A, DC/DC uModule Regulator $24.40 (LTM4613EV#PBF)
37LTM8033 1 3.6 36 Buck 3 Yes EN55022 Class B Certified Ultralow Noise EMC Compliant 36VIN, 3A DC/DC µModule Regulator $11.95 (LTM8033EV#PBF)
38LTM8031 1 3.6 36 Buck 1 Yes EN55022 Class B Certified Ultralow Noise EMC Compliant 36V, 1A DC/DC uModule Regulator $9.95 (LTM8031EV#PBF)
39LTM4612 1 5 36 Buck 5 Yes EN55022 Class B Certified EN55022B Compliant 36VIN, 15VOUT, 5A, DC/DC µModule $19.89 (LTM4612EV#PBF)
40LTM4606 1 4.5 28 Buck 6 Yes EN55022 Class B Certified EN55022B Compliant 28VIN, 6A DC/DC µModule $16.50 (LTM4606EV#PBF)
41LTM8021 1 3 36 Buck 500m Yes EN55022 Class B Certified 36VIN, 500mA Step-Down DC/DC µModule $5.85 (LTM8021EV#PBF)
42LTM8032 1 3.6 36 Buck 2 Yes EN55022 Class B Certified Ultralow Noise EMC Compliant 36V, 2A DC/DC uModule $10.95 (LTM8032EV#PBF)
43LTM8020 1 4 36 Buck 200m Yes EN55022 Class B Certified EN55022B Compliant 36Vin, 200mA, DC/DC µModule $4.95 (LTM8020EV#PBF)
44LT3439 1 2.8 20 Push-Pull- Yes Adjustable Slew Rate Slew Rate Controlled Ultralow Noise1A Isolated DC/DC Transformer Driver $3.50 (LT3439EFE#PBF)
45LT1534-1 1 2.7 23 Boost, Flyback, Sepic- Yes Adjustable Slew Rate Reduced Conducted/Emitted EMI, Slew Rate Control, Thermally Enhanced SO-16 $3.93 (LT1534CS-1#PBF)
46LT1534 1 2.7 23 Boost, Flyback, Sepic- Yes Adjustable Slew Rate Reduced Conducted/Emitted EMI, Slew Rate Control $3.93 (LT1534CS-1#PBF)
47LT1533 1 2.55 23 Push-Pull- Yes Adjustable Slew Rate Greatly Reduced Conducted/Emitted EMI, (<100µVPP), Independent Control of Switch Voltage/Current Sle $4.65 (LT1533CS#PBF)
48LT1738 1 4 20 Boost, Flyback, Inverting, Sepic- No Adjustable Slew Rate Ultralow noise $4.10 (LT1738EG#PBF)
49LT1683 1 4 20 Boost, Flyback, Inverting, Push-Pull- No Adjustable Slew Rate Slew Rate Controlled Ultralow Noise Push-Pull DC/DC Controller $4.75 (LT1683EG#PBF)
50LT1777 1 7 48 Buck 440m Yes Adjustable Slew Rate Programmable di/dt Limit for Low Noise Applications $2.65 (LT1777CS#PBF)