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. 781-3288
Mfr. Part No.TSR 3-1250
BrandTRACOPOWER
HK$284.61
Each
units
4.5 → 14V dc 0.6 → 6V dc 1 3A - Through Hole SIP -40°C +85°C 93% 1630000h 0.6 %, 0.8 %, 15 mV, 20 mV 0.2 %, 5 mV 60mV Pk-Pk
RS Stock No. 777-3291
Mfr. Part No.R-78E3.3-0.5
BrandRecom
HK$22.55
Each
units
6 → 28V dc 3.3V dc 1 500mA 1.65W Through Hole SIP 3 -40°C +85°C 88% 4185000h ±1% ±0.5% 50mV Pk-Pk
RS Stock No. 672-7118
Mfr. Part No.R-781.8-1.0
BrandRecom
HK$67.64
Each
units
4.75 → 18V dc 1.8V dc 1 1A 1.8W Through Hole SIP -40°C +85°C 82% 13338000h 0.4% 0.2% 20mV Pk-Pk
RS Stock No. 166-6048
Mfr. Part No.TSR 0.5-2465
BrandTRACOPOWER
HK$46.571
Each (In a Tube of 10)
units
8 → 35V dc 6.5V dc 1 500mA - Through Hole SIP 3 -40°C +90°C 95% 2000000h ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 139-2986
Mfr. Part No.R-78S3.3-0.1
BrandRecom
HK$50.45
Each
units
0.65 → 3.15V dc 3.3V dc 1 100mA 0.33W Through Hole SIP 4 -40°C +100°C 93% 78172000h ±1% ±0.3% 100mV Pk-Pk
RS Stock No. 166-9000
Mfr. Part No.R-78B5.0-1.5L
BrandRecom
HK$101.336
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. 827-5558
Mfr. Part No.TSR 1-0518SM
BrandTRACOPOWER
HK$72.54
Each
units
36V dc 1.8V dc 1 1A - Through Hole TO-220 -40°C +85°C 96% >5350000h 0.6% 0.2% 50 (1.2 → 6.5 VDC Models) mV, 75 (9 → 15 VDC Models) mV
RS Stock No. 755-3422
Mfr. Part No.TSRN 1-24150
BrandTRACOPOWER
HK$131.58
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
New
RS Stock No. 190-7937
Mfr. Part No.MAX15005AAUE+
BrandMaxim
HK$31.214
Each (In a Pack of 5)
units
4.5 → 40V dc 7.15 → 7.6V dc 1 100mA - Surface Mount - -40°C +125°C - - - - -
New
RS Stock No. 186-1405
Mfr. Part No.NCP4306AAAZZZAMNTWG
HK$9.946
Each (In a Pack of 10)
units
35 (Maximum)V dc - 1 2 (Source) A, 7 (Sink) A - Surface Mount DFN (CASE 488AF) -40°C +125°C - - - - -
RS Stock No. 184-6577
Mfr. Part No.R-78S3.6-0.1
BrandRecom
HK$1,887.27
1 Tube of 42
Tube(s)
0.65 → 3.3V dc 3.6V dc 1 100mA - Through Hole SIP -40°C +100°C 93% 6963 x 10^3 h, 89365 x 10^3 h ±1% ±0.3% 100mV Pk-Pk
RS Stock No. 166-6632
Mfr. Part No.R-78E3.3-1.0
BrandRecom
HK$32.506
Each (In a Tube of 42)
units
7 → 28V dc 3.3V dc 1 1A - Through Hole SIP -40°C +85°C 87% 3875000h ±1.5% ±1% 120mV Pk-Pk
RS Stock No. 706-3941
Mfr. Part No.R-78AA6.5-0.5SMD
BrandRecom
HK$73.76
Each
units
8 → 32V dc 6.5V dc 1 500mA - Surface Mount DIP -40°C +85°C 95% 29253000h 0.7% 0.2% 20mV Pk-Pk
RS Stock No. 122-7222
Mfr. Part No.TR05S05
BrandXP Power
HK$26.14
Each
units
7 → 28V dc 5V dc 1 500mA 2.5W Through Hole SIP -40°C +85°C 92% 4Mh ±0.8% ±0.5% 60mV Pk-Pk
RS Stock No. 167-2767
Mfr. Part No.SR05S7V2
BrandXP Power
HK$65.973
Each (In a Tube of 40)
units
9 → 34V dc 7.2V dc 1 500mA 3.6W Through Hole SIP -40°C +85°C 95% >4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 788-0623
Mfr. Part No.TSN 1-24120
BrandTRACOPOWER
HK$145.93
Each
units
-15 → -32V dc -12V dc 1 -1A - Through Hole - -40°C +85°C 92% - 0.6% 1% -
RS Stock No. 134-6945
Mfr. Part No.TR10S05
BrandXP Power
HK$28.847
Each (In a Tube of 40)
units
8 → 28V dc 5V dc 1 1A - Through Hole SIP -40°C +85°C 90% 3.8 (Minimum)Mh 1.5% 1% 100mV Pk-Pk
RS Stock No. 755-3431
Mfr. Part No.TSRN 1-2465A
BrandTRACOPOWER
HK$138.92
Each
units
8 → 29 V dc, 8 → 42 V dc ±6.5V dc 1 1 A, 300 mA - Through Hole SIP -40°C +85°C 80 %, 86 % 6000000h ±0.4% ±0.2% 50mV Pk-Pk
RS Stock No. 174-4659
Mfr. Part No.SRH05S05
BrandXP Power
HK$62.803
Each (In a Tube of 40)
units
9 → 72V dc 5V dc 1 500mA - Through Hole SIP -40°C +85°C 80 %, 88 % 4.5Mh 0.6% 1% 75mV Pk-Pk
RS Stock No. 876-2484
Mfr. Part No.TSR 0.5-2450SM
BrandTRACOPOWER
HK$66.70
Each
units
6.5 → 32V dc 5V dc 1 500mA - Surface Mount SIP -40°C +90°C 86 % @ 32 V dc, 94 % @ Vin min >2000000h 0.6% 0.4% 30mV Pk-Pk
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