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. 190-4521
Mfr. Part No.MAX5035DUSA+
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. 122-7212
Mfr. Part No.SR05S09
BrandXP Power
HK$56.71
Each
units
11 → 34V dc 9V dc 1 500mA 4.5W Through Hole SIP -40°C +85°C 96% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 166-8999
Mfr. Part No.R-78B5.0-1.0L
BrandRecom
HK$3,432.43
1 Tube of 42
Tube(s)
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. 122-4615
Mfr. Part No.STR05S1V8
BrandXP Power
HK$68.36
Each
units
4.75 → 32V dc 1.8V dc 1 500mA 0.9W Surface Mount SMD -40°C +100°C 71% 2Mh ±0.6% ±0.4% 30mV Pk-Pk
RS Stock No. 122-7219
Mfr. Part No.SR10S05
BrandXP Power
HK$64.68
Each
units
6.5 → 18V dc 5V dc 1 1A 5W Through Hole SIP -40°C +60°C 93% 4.5Mh ±0.6% ±0.5% 60mV Pk-Pk
RS Stock No. 190-4496
Mfr. Part No.MAX1692EUB+
HK$36.688
Each (In a Tube of 50)
units
2.7 → 5.5V dc 1.22 → 1.27V dc 1 600mA - Surface Mount - -40°C +85°C 95% - -1.3% 1% -
RS Stock No. 190-4534
Mfr. Part No.MAX770ESA+
HK$31.024
Each (In a Tube of 100)
units
2 → 16.5V dc 14.4 → 15.6V dc 1 - 15W Surface Mount - -40°C +85°C 90% - - - -
RS Stock No. 190-4490
Mfr. Part No.MAX1683EUK+T
HK$7.695
Each (On a Reel of 2500)
units
2 → 5.5V dc 12V dc 1 45mA - Surface Mount - -40°C +85°C 99.9 (Typ.)% - - - -
RS Stock No. 173-6966
Mfr. Part No.OKI-78SR-12/1.0-W36HE-C
HK$51.92
Each
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. 190-8201
Mfr. Part No.MAX17503ATP+T
HK$33.135
Each (In a Pack of 2)
units
4.5 → 60V dc 4.75 → 5.25V dc 1 2.5A - Surface Mount - -40°C +125°C >90% - - - -
RS Stock No. 817-9397
Mfr. Part No.TSR 0.5-2425
BrandTRACOPOWER
HK$55.25
Each
units
4.75 → 32V dc 2.5V dc 1 500mA - Through Hole SIP 3 -40°C +90°C 87% 2000000h ±0.6% ±0.4% 30mV 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
New
RS Stock No. 193-3969
BrandRS PRO
HK$17.82
Each
units
6.5 → 36V dc 5V dc 1 500mA - PCB Mount - -40°C +85°C 90/84% 2000 (Minimum)kh ±0.6 (Typ.)% ±0.4% 75mV Pk-Pk
RS Stock No. 166-6674
Mfr. Part No.R-78C15-1.0
BrandRecom
HK$4,050.36
1 Tube of 42
Tube(s)
18 → 42V dc 15V dc 1 1A 15W Through Hole SIP 3 -40°C +85°C 94% 3880000h ±0.4% ±0.2% 100mV Pk-Pk
RS Stock No. 188-3365
Mfr. Part No.STH0548S05
BrandXP Power
HK$80.54
Each
units
9 → 72V dc 5V dc 1 500mA - Surface Mount SMD -40°C +100°C 74 % @ 72 V 4.8 (Minimum) Mh ±1% ±1% 75mV Pk-Pk
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. 166-5671
Mfr. Part No.TSRN 1-2490SM
BrandTRACOPOWER
HK$981.61
1 Tube of 10
Tube(s)
7 → 27 V dc, 10.5 → 42 V dc ±9V dc 1 1 A, 300 mA - Surface Mount SMD -40°C +85°C 82 %, 89 % 6000000h ±0.6% ±0.2% 75mV Pk-Pk
RS Stock No. 166-5663
Mfr. Part No.TSRN 1-2433
BrandTRACOPOWER
HK$927.59
1 Tube of 10
Tube(s)
4.6 → 32 V dc, 4.6 → 42 V dc ±3.3V dc 1 1 A, 600 mA - Through Hole SIP -40°C +85°C 77 %, 79 % 6000000h ±0.4% ±0.2% 50mV Pk-Pk
RS Stock No. 166-6144
Mfr. Part No.TSR 2-0518
BrandTRACOPOWER
HK$911.50
1 Tube of 10
Tube(s)
3 → 5.5V dc 1.8V dc 1 2A - Through Hole SIP -40°C +85°C 92% 13520000h Maximum of 1% Maximum of 0.5% 50mV Pk-Pk
RS Stock No. 161-9259
Mfr. Part No.SR10S2V5
BrandXP Power
HK$2,501.16
1 Tube of 40
Tube(s)
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
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