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. 122-4616
Mfr. Part No.STR05S2V5
BrandXP Power
HK$68.36
Each
units
4.75 → 32V dc 2.5V dc 1 500mA 1.25W Surface Mount SMD -40°C +100°C 77% 2Mh ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 781-3106
Mfr. Part No.TSR 1-2412
BrandTRACOPOWER
HK$77.79
Each
units
4.6 → 36V dc 1.2V dc 1 1A - Through Hole SIP 3 -40°C +85°C 62 %, 74 % 5350000h ±0.6% ±0.2% 50mV Pk-Pk
RS Stock No. 190-4520
Mfr. Part No.MAX5033DASA+
HK$17.513
Each (In a Tube of 100)
units
7.5 → 76V dc - - 500mA - Surface Mount - -40°C +125°C 94 (Typ.)% - - - -
RS Stock No. 190-4499
Mfr. Part No.MAX1721EUT+T
HK$7.795
Each (On a Reel of 2500)
units
1.5 → 5.5V dc -0.3 → 0.3V dc 1 25mA - Surface Mount - -40°C +85°C 99.9 (Typ.)% - - - -
RS Stock No. 161-6602
Mfr. Part No.TSR 1-2415
BrandTRACOPOWER
HK$739.08
1 Tube of 10
Tube(s)
4.6 → 36V dc 1.5V dc 1 1A 1.5W Through Hole SIP 3 -40°C +85°C 78 → 65% 5350000h ±0.6% ±0.2% 50mV Pk-Pk
RS Stock No. 672-7149
Mfr. Part No.R-78B5.0-1.0L
BrandRecom
HK$78.66
Each
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. 761-8434
Mfr. Part No.LT1767EMS8E#PBF
HK$63.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 190-8247
Mfr. Part No.MAX669EUB+
HK$42.22
Each (In a Pack of 2)
units
1.8 → 28V dc 4.5 → 5.5V dc 1 20mA - Surface Mount - -40°C +85°C 90% - - 0.012% -
RS Stock No. 186-1432
Mfr. Part No.FAN48685UC08X
HK$3.448
Each (In a Pack of 15)
units
2.5 → 5.5V dc 3.6 V dc, 5 V dc, 5.45 V dc 1 800mA - Surface Mount WLCSP -40°C +85°C 93% - - - 30mV
RS Stock No. 161-6617
Mfr. Part No.TSRN 1-24120SM
BrandTRACOPOWER
HK$980.46
1 Tube of 10
Tube(s)
13.5 → 42V dc ±12V dc 1 1 A, 300 mA - Surface Mount SMD -40°C +85°C 86 %, 91 % 6000000h ±0.6% ±0.2% 75mV Pk-Pk
RS Stock No. 532-8066
Mfr. Part No.R-789.0-0.5
BrandRecom
HK$64.41
Each
units
11 → 32V dc 9V dc 1 500mA 2.5W Through Hole SIP -40°C +85°C 96% 21098000h ±0.4% ±0.2% 25mV Pk-Pk
RS Stock No. 876-2478
Mfr. Part No.TSR 0.5-2418SM
BrandTRACOPOWER
HK$68.73
Each
units
4.75 → 32V dc 1.8V dc 1 500mA - Surface Mount SIP -40°C +90°C 71 % @ 32 V dc, 82 % @ Vin min >2000000h 0.6% 0.4% 30mV Pk-Pk
RS Stock No. 184-6587
Mfr. Part No.R-78S1.8-0.1
BrandRecom
HK$45.19
Each
units
0.65 → 1.3V dc 1.8V 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. 166-6056
Mfr. Part No.TSR 1-2433SM
BrandTRACOPOWER
HK$768.97
1 Tube of 10
Tube(s)
4.75 → 36V dc 3.3V dc 1 1A - Through Hole TO-220 -40°C +85°C 78 % @ Vin max, 91 % @ Vin min >5350000h 0.6% 0.2% 50 (1.2 to 6.5 VDC Models) mV, 75 (9 to 15 VDC Models) mV
New
RS Stock No. 193-4010
BrandRS PRO
HK$41.95
Each
units
16 → 36V dc 12V dc 1 1A - PCB Mount - -40°C +85°C 95/92% 2000 (Minimum)kh ±0.6% ±0.4% 75mV Pk-Pk
RS Stock No. 166-6671
Mfr. Part No.R-78C3.3-1.0
BrandRecom
HK$3,384.15
1 Tube of 42
Tube(s)
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. 178-3486
Mfr. Part No.STS1024S2V5
BrandXP Power
HK$69.85
Each
units
4.6 → 36V dc 2.5V dc 1 1A 1W Surface Mount SMD -40°C +105°C 92.5% 3.5 (Minimum)Mh ±0.6% ±0.2% 75mV Pk-Pk
RS Stock No. 190-8143
Mfr. Part No.MAX1692EUB+
HK$45.61
Each (In a Pack of 2)
units
2.7 → 5.5V dc 1.22 → 1.27V dc 1 600mA - Surface Mount - -40°C +85°C 95% - -1.3% 1% -
New
RS Stock No. 193-4022
BrandRS PRO
HK$2,640.01
1 Tube of 44
Tube(s)
6 → 36V dc 3.3V dc 1 1A - PCB Mount - -40°C +85°C 90/81% 2000 (Minimum)kh ±0.6% ±0.4% 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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