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. 166-8999
Mfr. Part No.R-78B5.0-1.0L
BrandRecom
HK$84.53
Each (In a Tube of 42)
units
32V dc 5V dc 1 1A 5W Through Hole SIP -40°C +85°C 93% 6584000h ±0.6% ±0.4% 20mV 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
RS Stock No. 817-9393
Mfr. Part No.TSR 0.5-2418
BrandTRACOPOWER
HK$55.25
Each
units
4.75 → 32V dc 1.8V dc 1 500mA - Through Hole SIP 3 -40°C +90°C 82% 2000000h ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 923-2401
Mfr. Part No.TPS5450DDA
HK$38.399
Each (In a Tube of 75)
units
- - - - - - - - - - - - - -
RS Stock No. 163-451
Mfr. Part No.R-78B5.0-1.0
BrandRecom
HK$69.45
Each
units
32V dc 5V dc 1 1A 5W Through Hole SIP -40°C +85°C 93% 6584000h 0.2% 0.4% 15mV Pk-Pk
RS Stock No. 830-0036
Mfr. Part No.R-78AA5.0-0.5SMD-R
BrandRecom
HK$56.487
Each (On a Reel of 250)
units
6.5 → 32V dc 5V dc 1 500mA 0.4W Surface Mount SMD 10 -40°C +85°C 94% 29253 x 10³h 0.4% 0.4% 40mV Pk-Pk
RS Stock No. 178-3480
Mfr. Part No.STS1024S12
BrandXP Power
HK$80.75
Each
units
15 → 36V dc 12V dc 1 1A 1W Surface Mount SMD -40°C +105°C 95% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk
RS Stock No. 706-3932
Mfr. Part No.R-78AA5.0-0.5SMD
BrandRecom
HK$73.98
Each
units
6.5 → 32V dc 5V dc 1 500mA 2.5W Surface Mount DIP -40°C +85°C 94% 29253000h ±1% ±0.4% 30mV Pk-Pk
RS Stock No. 173-6923
Mfr. Part No.OKI-78SR-12/1.0-W36HE-C
HK$55.459
Each (In a Box of 126)
units
24V dc 12V dc 1 1A 12W Through Hole TO-220 -40°C +85°C 95.3% 78700000h ±0.25 ±0.25% 75mV 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. 672-7082
Mfr. Part No.R-6212P
BrandRecom
HK$149.56
Each
units
14 → 32V dc 12V dc 1 2A 18W Through Hole SIP -40°C +85°C 93% - ±1% ±0.5% -
New
RS Stock No. 190-4521
Mfr. Part No.MAX5035DUSA+
BrandMaxim
HK$21.053
Each (In a Tube of 100)
units
7.5 → 76V dc 3.18 → 12.36V dc 1 1A - Surface Mount - 0°C +85°C 94 (Typ.)% - - - -
RS Stock No. 828-9264
Mfr. Part No.R1Z-0505/P
BrandRecom
HK$121.33
Each
units
4.5 → 5.5V dc 5V dc 1 200mA 1W Surface Mount SMD -40°C +70°C 60% 2387 x 10³ (+25 °C)h 1% 1% 100mV Pk-Pk
RS Stock No. 174-4720
Mfr. Part No.SRH05S09
BrandXP Power
HK$71.83
Each
units
14 → 72V dc 9V dc 1 500mA - Through Hole SIP -40°C +85°C 86 %, 92 % 4.5Mh 0.6% 1% 75mV Pk-Pk
New
RS Stock No. 190-4549
Mfr. Part No.MAX861ISA+
BrandMaxim
HK$15.266
Each (In a Tube of 100)
units
1.5 → 5.5V dc 2.5 → 5.5V dc 1 100mA - Surface Mount - -25°C +85°C 99.9 (Typ.)% - - - -
New
RS Stock No. 190-7881
Mfr. Part No.MAX15062CATA+T
BrandMaxim
HK$26.24
Each (In a Pack of 5)
units
4.5 → 60V dc 4.75 → 5.25V dc 1 300mA - Surface Mount - -40°C +125°C 92% - 0.936V dc - -
RS Stock No. 162-2691
Mfr. Part No.R-78B3.3-1.0L
BrandRecom
HK$66.485
Each (In a Tube of 42)
units
32V dc 3.3V dc 1 1A 3.3W Through Hole SIP -40°C +85°C 89% 6584000h ±0.6% ±0.4% 20mV Pk-Pk
RS Stock No. 739-8304
Mfr. Part No.R-78C12-1.0
BrandRecom
HK$72.33
Each
units
15 → 42V dc 12V dc 1 1A 12W Through Hole SIP 3 -40°C +85°C 92% 3880000h ±0.4% ±0.2% 100mV Pk-Pk
RS Stock No. 178-3477
Mfr. Part No.STS1005S2V5
BrandXP Power
HK$80.75
Each
units
3.8 → 5.5V dc 2.5V dc 1 1A 1W Surface Mount SMD -40°C +105°C 94.5% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk
RS Stock No. 161-9865
Mfr. Part No.TSR 2-0515
BrandTRACOPOWER
HK$74.436
Each (In a Tube of 10)
units
3 → 5.5V dc 1.5V dc 1 2A - Through Hole SIP -40°C +85°C 91% 13520000h Maximum of 1% Maximum of 0.5% 50mV Pk-Pk
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