Switching Regulators

Switching regulators are circuits that transform voltage and input current into a voltage and an output current of suitable level for properly feed the system, compensating for variations in the load and input voltage. They regulate energy transfer to maintain a constant output voltage within the circuit limits.

What are switching regulators used for?

They are use for single-cell or multi-cell battery powered applications and for portable electronic devices that are battery powered. They can prevent short circuits and ensure over voltage and under voltage protection. Switching regulators protect electronic systems from over current and over temperature damage.

Types of switching regulators

The basic circuit of the switching regulator can be configured to increase (step up or boost), reduce (step down or buck), or reverse the output voltage with respect to the input voltage (inverters). Switching regulators offer several advantages over linear voltage regulators. The main advantage is the high conversion efficiency, up to 95%. They often do not require external capacitors.


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Description Price Input Voltage Output Voltage Number of Outputs Output Current Power Rating Mounting Type Package Minimum Temperature Maximum Temperature Efficiency MTBF Load Regulation Line Regulation Ripple And Noise
RS Stock No. 796-2132
Mfr. Part No.OKI-78SR-5/1.5-W36-C
HK$36.80
Each
units
- 5V dc 1 1.5A 7.5W Through Hole SIP -40°C +85°C - - ±0.25% ±0.25% 75mV Pk-Pk
RS Stock No. 166-6065
Mfr. Part No.TSR 0.5-2425SM
BrandTRACOPOWER
HK$61.739
Each (In a Tube of 10)
units
4.75 → 32V dc 2.5V dc 1 500mA - Surface Mount SIP -40°C +90°C 77 % @ 32 V dc, 87 % @ Vin min >2000000h 0.6% 0.4% 30mV Pk-Pk
RS Stock No. 122-4617
Mfr. Part No.STR05S3V3
BrandXP Power
HK$62.16
Each
units
4.75 → 32V dc 3.3V dc 1 500mA 1.65W Surface Mount SMD -40°C +100°C 81% 2Mh ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 166-8919
Mfr. Part No.R-78HB6.5-0.5
BrandRecom
HK$122.911
Each (In a Tube of 42)
units
9 → 72V dc 6.5V dc 1 500mA - Through Hole SIP -40°C +85°C 84% - ±0.6% ±1% -
RS Stock No. 532-8072
Mfr. Part No.R-7812-0.5
BrandRecom
HK$64.62
Each
units
15 → 32V dc 12V dc 1 500mA 2.5W Through Hole SIP -40°C +85°C 97% 21098000h ±0.4% ±0.2% 25mV Pk-Pk
RS Stock No. 416-884
Mfr. Part No.R-78HB6.5-0.5
BrandRecom
HK$117.33
Each
units
9 → 72V dc 6.5V dc 1 500mA - Through Hole SIP -40°C +85°C 84% - ±0.6% ±1% -
RS Stock No. 166-8772
Mfr. Part No.R-725.0P
BrandRecom
HK$218.401
Each (In a Tube of 15)
units
6.5 → 28V dc 5V dc 1 2A 10W Through Hole SIP -40°C +85°C 95% - 0.5% 0.5% 30mV Pk-Pk
RS Stock No. 163-467
Mfr. Part No.R-78B9.0-1.0
BrandRecom
HK$86.43
Each
units
32V dc 9V dc 1 1A 9W Through Hole SIP -40°C +85°C 95% 6584000h 0.1% 0.25% 25mV Pk-Pk
RS Stock No. 166-8718
Mfr. Part No.R-78B9.0-1.0
BrandRecom
HK$86.571
Each (In a Tube of 42)
units
32V dc 9V dc 1 1A 9W Through Hole SIP -40°C +85°C 95% 6584000h 0.1% 0.25% 25mV Pk-Pk
RS Stock No. 124-7659
Mfr. Part No.TSR 1-24150
BrandTRACOPOWER
HK$60.466
Each (In a Tube of 10)
units
18 → 36V dc 15V dc 1 1A 15W Through Hole SIP 3 -40°C +85°C 96 → 94% 5350000h ±0.4% ±0.2% 75mV Pk-Pk
RS Stock No. 416-846
Mfr. Part No.R-78HB15-0.5
BrandRecom
HK$114.76
Each
units
20 → 72V dc 15V dc 1 500mA 7.5W Through Hole SIP -40°C +85°C 91% 7395000h ±0.6% ±1% 20mV Pk-Pk
RS Stock No. 796-2141
Mfr. Part No.OKI-78SR-3.3/1.5-W36-C
HK$38.97
Each
units
- 3.3V dc 1 1.5A 4.95W Through Hole SIP -40°C +85°C 85.5% 78721000h ±0.25% ±0.25% 40mV Pk-Pk
RS Stock No. 166-9045
Mfr. Part No.R-78HB15-0.5
BrandRecom
HK$122.911
Each (In a Tube of 42)
units
20 → 72V dc 15V dc 1 500mA 7.5W Through Hole SIP -40°C +85°C 91% 7395000h ±0.6% ±1% 20mV Pk-Pk
RS Stock No. 145-9233
Mfr. Part No.L7985A
HK$15.808
Each (In a Tube of 100)
units
4.5 → 38V dc 0.6 → 38V dc 1 2A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS Stock No. 167-5930
Mfr. Part No.OKI-78SR-3.3/1.5-W36-C
HK$28.299
Each (In a Tray of 360)
units
- 3.3V dc 1 1.5A 4.95W Through Hole SIP -40°C +85°C 85.5% 78721000h ±0.25% ±0.25% 40mV Pk-Pk
RS Stock No. 167-1973
Mfr. Part No.STR05S3V3
BrandXP Power
HK$68.774
Each (In a Tube of 10)
units
4.75 → 32V dc 3.3V dc 1 500mA 1.65W Surface Mount SMD -40°C +100°C 81% 2Mh ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 876-2472
Mfr. Part No.TSR 0.5-2425SM
BrandTRACOPOWER
HK$71.94
Each
units
4.75 → 32V dc 2.5V dc 1 500mA - Surface Mount SIP -40°C +90°C 77 % @ 32 V dc, 87 % @ Vin min >2000000h 0.6% 0.4% 30mV Pk-Pk
RS Stock No. 810-3744
Mfr. Part No.L7985A
HK$15.594
Each (In a Pack of 5)
units
4.5 → 38V dc 0.6 → 38V dc 1 2A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS Stock No. 672-7102
Mfr. Part No.R-78HB12-0.5L
BrandRecom
HK$119.11
Each
units
17 → 72V dc 12V dc 1 500mA 6W Through Hole SIP -40°C +85°C 89% 7395000h ±0.6% ±1% 20mV Pk-Pk
RS Stock No. 166-8986
Mfr. Part No.R-78HB12-0.5L
BrandRecom
HK$127.732
Each (In a Tube of 42)
units
17 → 72V dc 12V dc 1 500mA 6W Through Hole SIP -40°C +85°C 89% 7395000h ±0.6% ±1% 20mV Pk-Pk
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