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. 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. 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. 167-2726
Mfr. Part No.SR10S3V3
BrandXP Power
HK$72.355
Each (In a Tube of 40)
units
4.75 → 18V dc 3.3V dc 1 1A 3.3W Through Hole SIP -40°C +60°C 90% >4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 167-2786
Mfr. Part No.SR05S15
BrandXP Power
HK$65.973
Each (In a Tube of 40)
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. 122-4612
Mfr. Part No.STR05S12
BrandXP Power
HK$62.16
Each
units
15 → 32V dc 12V dc 1 500mA 6W Surface Mount SMD -40°C +100°C 94% 2Mh ±0.4% ±0.2% 40mV Pk-Pk
RS Stock No. 178-3483
Mfr. Part No.STS1024S1V2
BrandXP Power
HK$80.75
Each
units
4.6 → 36V dc 1.2V dc 1 1A 1W Surface Mount SMD -40°C +105°C 87% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk
New
RS Stock No. 188-3377
Mfr. Part No.STH0548S12
BrandXP Power
HK$83.89
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 188-2979
Mfr. Part No.STH0548S12
BrandXP Power
HK$2,954.74
1 Tube of 40
Tube(s)
17 → 72V dc 12V dc 1 500mA - Surface Mount SMD -40°C +100°C 86 % @ 72 V 4.8 (Minimum)Mh ±1% ±1% 75mV Pk-Pk
RS Stock No. 174-4673
Mfr. Part No.SRH05S6V5
BrandXP Power
HK$71.83
Each
units
9 → 72V dc 6.5V dc 1 500mA - Through Hole SIP -40°C +85°C 83 %, 91 % 4.5Mh 0.6% 1% 75mV Pk-Pk
RS Stock No. 122-4614
Mfr. Part No.STR05S1V5
BrandXP Power
HK$54.41
Each
units
4.75 → 32V dc 1.5V dc 1 500mA 0.75W Surface Mount SMD -40°C +100°C 63% 2Mh ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 174-4670
Mfr. Part No.SRH05S3V3
BrandXP Power
HK$71.83
Each
units
9 → 72V dc 3.3V dc 1 500mA - Through Hole SIP -40°C +85°C 75 %, 82 % 4.5Mh 0.6% 1% 75mV Pk-Pk
RS Stock No. 161-9259
Mfr. Part No.SR10S2V5
BrandXP Power
HK$56.56
Each (In a Tube of 40)
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. 178-3484
Mfr. Part No.STS1024S1V5
BrandXP Power
HK$80.75
Each
units
4.6 → 36V dc 1.5V dc 1 1A 1W Surface Mount SMD -40°C +105°C 89% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk
New
RS Stock No. 188-3380
Mfr. Part No.STH0548S15
BrandXP Power
HK$83.89
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 188-2980
Mfr. Part No.STH0548S15
BrandXP Power
HK$2,954.74
1 Tube of 40
Tube(s)
21 → 72V dc 15V dc 1 400mA - Surface Mount SMD -40°C +100°C 84 % @ 72 V 4.8 (Minimum)Mh ±1% ±1% 75mV Pk-Pk
RS Stock No. 174-4660
Mfr. Part No.SRH05S09
BrandXP Power
HK$62.803
Each (In a Tube of 40)
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
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. 178-3487
Mfr. Part No.STS1024S3V3
BrandXP Power
HK$80.75
Each
units
4.75 → 36V dc 3.3V dc 1 1A 1W Surface Mount SMD -40°C +105°C 94% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk
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. 178-3462
Mfr. Part No.STS1005S1V8
BrandXP Power
HK$1,926.93
1 Tube of 30
Tube(s)
3 → 5.5V dc 1.8V dc 1 1A 1W Surface Mount SMD -40°C +105°C 92.5% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk