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. 173-6925
Mfr. Part No.OKI-78SR-3.3/1.5-W36-C
HK$36.942
Each (On a Reel of 360)
units
12V dc 3.3V dc 1 1.5A 4.95W Through Hole TO-220 -40°C +85°C 85.5% 78700000h ±0.4 ±0.25% 40mV Pk-Pk
RS Stock No. 166-8983
Mfr. Part No.R-783.3-0.5
BrandRecom
HK$60.691
Each (In a Tube of 42)
units
4.75 → 32V dc 3.3V dc 1 500mA 2.5W Through Hole SIP -40°C +85°C 91% 21098000h ±0.6% ±0.4% 20mV Pk-Pk
RS Stock No. 166-9086
Mfr. Part No.R-7812-0.5
BrandRecom
HK$66.70
Each (In a Tube of 42)
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. 466-7584
Mfr. Part No.PSB246-2IRG
HK$1,331.07
Each
units
29 → 60V dc 24V dc 1 6A 144W Screw Mount - -10°C +50°C - - - - -
RS Stock No. 532-8044
Mfr. Part No.R-783.3-0.5
BrandRecom
HK$61.35
Each
units
4.75 → 32V dc 3.3V dc 1 500mA 2.5W Through Hole SIP -40°C +85°C 91% 21098000h ±0.6% ±0.4% 20mV Pk-Pk
RS Stock No. 672-7085
Mfr. Part No.R-725.0P
BrandRecom
HK$204.70
Each
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. 666-4388
Mfr. Part No.TSR 1-24150
BrandTRACOPOWER
HK$81.70
Each
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. 163-704
Mfr. Part No.R-723.3P
BrandRecom
HK$221.32
Each
units
4.5 → 28V dc 3.3V dc 1 2A 11W Through Hole SIP -40°C +85°C 95% - ±1% ±1% -
RS Stock No. 827-5580
Mfr. Part No.TSR 1-24120SM
BrandTRACOPOWER
HK$71.46
Each
units
15 → 36V dc 12V dc 1 1A - Through Hole TO-220 -40°C +85°C 92 % @ Vin max, 95 % @ Vin min >5350000h 0.6% 0.2% 50 (1.2 → 6.5 VDC Models) mV, 75 (9 → 15 VDC Models) mV
RS Stock No. 167-1978
Mfr. Part No.STR05S15
BrandXP Power
HK$68.774
Each (In a Tube of 10)
units
18 → 32V dc 15V dc 1 500mA 7.5W Surface Mount SMD -40°C +100°C 95% 2Mh ±0.4% ±0.2% 40mV Pk-Pk
RS Stock No. 828-9270
Mfr. Part No.R-78B15-1.0L
BrandRecom
HK$89.27
Each
units
20 → 32V dc 15V dc 1 1A 0.65W Through Hole SIP 3 -40°C +85°C 96% 6584 x 10³ (+25 °C)h 0.4% 0.2% 35mV Pk-Pk
RS Stock No. 672-7127
Mfr. Part No.R-782.5-1.0
BrandRecom
HK$61.08
Each
units
4.75 → 18V dc 2.5V dc 1 1A - Through Hole SIP -40°C +85°C 87% 13338000h 0.4% 0.2% 20mV Pk-Pk
RS Stock No. 166-8987
Mfr. Part No.R-78HB24-0.3L
BrandRecom
HK$137.834
Each (In a Tube of 42)
units
36 → 72V dc 24V dc 1 300mA - Through Hole SIP -40°C +85°C 92% - ±0.6% ±1% -
RS Stock No. 122-7220
Mfr. Part No.SR10S2V5
BrandXP Power
HK$57.22
Each
units
4.75 → 18V dc 2.5V dc 1 1A 2.5W Through Hole SIP -40°C +60°C 87% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 145-0922
Mfr. Part No.LT1767EMS8E#PBF
HK$39.179
Each (In a Tube of 50)
units
- - - - - - - - - - - - - -
RS Stock No. 166-6138
Mfr. Part No.TSN 1-24150
BrandTRACOPOWER
HK$112.71
Each (In a Tube of 10)
units
-18 → -32V dc -15V dc 1 -1A - Through Hole - -40°C +85°C 92% - 0.6% 1% -
RS Stock No. 186-1401
Mfr. Part No.NCP4306AAAZZZAMN1TBG
HK$8.751
Each (In a Pack of 10)
units
35 (Maximum)V dc - 1 2 (Source) A, 7 (Sink) A - Surface Mount DFN (CASE 506BP) -40°C +125°C - - - - -
New
RS Stock No. 188-2977
Mfr. Part No.STH0548S7V2
BrandXP Power
HK$2,954.74
1 Tube of 40
Tube(s)
14 → 72V dc 7.2V dc 1 500mA - Surface Mount SMD -40°C +100°C 81 % @ 72 V 4.8 (Minimum)Mh ±1% ±1% 75mV Pk-Pk
RS Stock No. 122-7214
Mfr. Part No.SR05S15
BrandXP Power
HK$53.64
Each
units
18 → 34V dc 15V dc 1 500mA 7.5W Through Hole SIP -40°C +85°C 97% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
New
RS Stock No. 190-4476
Mfr. Part No.MAX15021ATI+
BrandMaxim
HK$42.967
Each (In a Tube of 60)
units
2.5 → 5.5V dc 1.5 V dc, 3.3 V dc 2 4A - Surface Mount - -40°C +125°C - - - - -
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