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. 755-3441
Mfr. Part No.TSRN 1-2450SM
BrandTRACOPOWER
£8.97
Each
Units
4.6 → 31 V dc, 6.5 → 42 V dc ±5V dc 1 1 A, 400 mA - Surface Mount SMD -40°C +85°C 78 %, 83 % 6000000h ±0.6% ±0.2% 50mV Pk-Pk
RS Stock No. 466-7512
Mfr. Part No.PSA123-2
£127.03
Each
Units
15 → 40V dc 12V dc 1 3A 36W Screw Mount - -10°C +50°C - - - - -
RS Stock No. 828-9276
Mfr. Part No.R-746.5P
BrandRecom
£20.52
Each
Units
8.5 → 28V dc 5 → 7.5V dc 1 5.5A 1.4W Through Hole SIP -40°C +85°C 93% 749 x 10³ (+25 °C)h 1% 1% 70mV Pk-Pk
RS Stock No. 124-7703
Mfr. Part No.TSRN 1-2450SM
BrandTRACOPOWER
£8.028
Each (In a Tube of 10)
Units
4.6 → 31 V dc, 6.5 → 42 V dc 5V dc 1 1 A, 400 mA - Surface Mount SMD -40°C +85°C 78 %, 83 % 6000000h ±0.6% ±0.2% 50mV Pk-Pk
RS Stock No. 781-3291
Mfr. Part No.TSR 3-24150
BrandTRACOPOWER
£28.54
Each
Units
10 → 30V dc 5 → 15V dc 1 3A - Through Hole SIP -40°C +85°C 95% 1630000h 0.6 %, 0.8 % 0.2% 150mV Pk-Pk
RS Stock No. 166-6606
Mfr. Part No.R-746.5P
BrandRecom
£20.21
Each (In a Tube of 15)
Units
8.5 → 28V dc 5 → 7.5V dc 1 5.5A 1.4W Through Hole SIP -40°C +85°C 93% 749 x 10³ (+25 °C)h 1% 1% 70mV Pk-Pk
RS Stock No. 810-3756
Mfr. Part No.L7986A
£1.676
Each (In a Pack of 5)
Units
4.5 → 38V dc 0.6 → 38V dc 1 3A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS Stock No. 122-7212
Mfr. Part No.SR05S09
BrandXP Power
£5.43
Each
Units
11 → 34V dc 9V dc 1 500mA 4.5W Through Hole SIP -40°C +85°C 96% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 167-2768
Mfr. Part No.SR05S09
BrandXP Power
£4.89
Each (In a Tube of 40)
Units
11 → 34V dc 9V dc 1 500mA 4.5W Through Hole SIP -40°C +85°C 96% >4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 145-9233
Mfr. Part No.L7985A
£1.382
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. 810-3744
Mfr. Part No.L7985A
£1.636
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. 739-8297
Mfr. Part No.R-78C3.3-1.0
BrandRecom
£7.23
Each
Units
7 → 42V dc 3.3V dc 1 1A 3.3W Through Hole SIP 3 -40°C +85°C 79% 3880000h ±0.4% ±0.2% 100mV Pk-Pk
RS Stock No. 166-6671
Mfr. Part No.R-78C3.3-1.0
BrandRecom
£7.01
Each (In a Tube of 42)
Units
7 → 42V dc 3.3V dc 1 1A 3.3W Through Hole SIP 3 -40°C +85°C 79% 3880000h ±0.4% ±0.2% 100mV Pk-Pk
RS Stock No. 755-3447
Mfr. Part No.TSRN 1-2433SM
BrandTRACOPOWER
£8.97
Each
Units
4.6 → 32 V dc, 4.6 → 42 V dc ±3.3V dc 1 1 A, 600 mA - Surface Mount SMD -40°C +85°C 77 %, 80 % 6000000h ±0.6% ±0.2% 50mV Pk-Pk
RS Stock No. 124-7704
Mfr. Part No.TSRN 1-2433SM
BrandTRACOPOWER
£8.01
Each (In a Tube of 10)
Units
4.6 → 32 V dc, 4.6 → 42 V dc 3.3V dc 1 1 A, 600 mA - Surface Mount SMD -40°C +85°C 77 %, 80 % 6000000h ±0.6% ±0.2% 50mV Pk-Pk
RS Stock No. 755-3422
Mfr. Part No.TSRN 1-24150
BrandTRACOPOWER
£9.38
Each
Units
16.5 → 21 V dc, 16.5 → 42 V dc ±15V dc 1 1 A, 200 mA - Through Hole SIP -40°C +85°C 84 %, 92 % 6000000h ±0.4% ±0.2% 75mV Pk-Pk
RS Stock No. 166-9000
Mfr. Part No.R-78B5.0-1.5L
BrandRecom
£8.52
Each (In a Tube of 42)
Units
6.5 → 18V dc 5V dc 1 1.5A 7.5W Through Hole SIP -40°C +85°C 92% 3250000h ±0.8% ±0.5% 30mV Pk-Pk
RS Stock No. 817-9820
Mfr. Part No.R-78W5.0-0.5
BrandRecom
£6.89
Each
Units
6.5 → 32V dc 5V dc 1 500mA - Through Hole SIP 3 -40°C +85°C 94% 21098000h 0.6% 0.4% 20mV Pk-Pk
RS Stock No. 122-7225
Mfr. Part No.TR05S3V3
BrandXP Power
£4.55
Each
Units
4.5 → 28V dc 3.3V dc 1 500mA 1.65W Through Hole SIP -40°C +85°C 89% 4Mh ±0.8% ±0.5% 60mV Pk-Pk
RS Stock No. 166-5666
Mfr. Part No.TSRN 1-24150
BrandTRACOPOWER
£8.332
Each (In a Tube of 10)
Units
16.5 → 21 V dc, 16.5 → 42 V dc ±15V dc 1 1 A, 200 mA - Through Hole SIP -40°C +85°C 84 %, 92 % 6000000h ±0.4% ±0.2% 75mV Pk-Pk
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