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庫存編號 161-6565
製造零件編號TSR 0.5-2490SM
BrandTRACOPOWER
HK$66.49
毎管:10 個
Tube(s)
11 → 32V dc 9V dc 1 500mA - Surface Mount SIP -40°C +90°C 92 % @ 32 V dc, 96 % @ Vin min >2000000h 0.4% 0.2% 40mV Pk-Pk
RS庫存編號 178-3480
製造零件編號STS1024S12
BrandXP Power
HK$80.75
單位
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庫存編號 777-3301
製造零件編號ROF-78E3.3-0.5SMD
BrandRecom
HK$30.17
單位
5 → 36V dc 3.3V dc 1 500mA 1.65W Surface Mount SMD -40°C +85°C 84% 3500 x 10³h ±3% ±1% 100mV
全新
RS庫存編號 190-4487
製造零件編號MAX1644EAE+
HK$68.575
毎管:76 個
單位
3 5.5V dc 3.3 3.36V dc 1 2.5A - Surface Mount - -40°C +85°C 95% - 1mV - -
RS庫存編號 145-9655
製造零件編號L7986A
HK$15.739
毎管:100 個
單位
4.5 → 38V dc 0.6 → 38V dc 1 3A 2W Surface Mount HSOP -40°C +150°C - - - - -
RS庫存編號 186-1405
製造零件編號NCP4306AAAZZZAMNTWG
HK$9.946
/個 (每包:10個)
單位
35 (Maximum)V dc - 1 2 (Source) A, 7 (Sink) A - Surface Mount DFN (CASE 488AF) -40°C +125°C - - - - -
RS庫存編號 166-6624
製造零件編號R-78AA9.0-0.5SMD
BrandRecom
HK$79.541
毎管:33 個
Tube(s)
11 → 32V dc 9V dc 1 500mA 5W Surface Mount DIP -40°C +85°C 96% 21098000h 0.7% 0.1% 30mV Pk-Pk
RS庫存編號 124-7712
製造零件編號TSR 0.5-24120
BrandTRACOPOWER
HK$41.117
毎管:10 個
Tube(s)
15 → 32V dc 12V dc 1 500mA - Through Hole SIP 3 -40°C +90°C 97% 2000000h ±0.4% ±0.2% 40mV Pk-Pk
全新
RS庫存編號 190-8002
製造零件編號MAX770ESA+
HK$66.265
/個 (每包:2個)
單位
2 → 16.5V dc 14.4 → 15.6V dc 1 - 15W Surface Mount - -40°C +85°C 90% - - - -
RS庫存編號 166-6621
製造零件編號R-78AA3.3-0.5SMD
BrandRecom
HK$73.05
毎管:33 個
Tube(s)
4.75 → 32V dc 3.3V dc 1 500mA 1.65W Surface Mount DIP -40°C +85°C 91% 29253000h ±1% ±0.4% 30mV Pk-Pk
RS庫存編號 161-6752
製造零件編號TSR 2-2433
BrandTRACOPOWER
HK$94.55
毎管:10 個
Tube(s)
4.75 → 36V dc 3.3V dc 1 2A - Through Hole SIP -40°C +85°C 91% 13520000h Maximum of 1% Maximum of 0.5% 50mV Pk-Pk
RS庫存編號 166-6497
製造零件編號R-78E3.3-0.5
BrandRecom
HK$25.397
毎管:42 個
Tube(s)
6 → 28V dc 3.3V dc 1 500mA 1.65W Through Hole SIP 3 -40°C +85°C 88% 4185000h ±1% ±0.5% 50mV Pk-Pk
RS庫存編號 188-2978
製造零件編號STH0548S09
BrandXP Power
HK$3,150.23
毎管:40 個
Tube(s)
14 → 72V dc 9V dc 1 500mA - Surface Mount SMD -40°C +100°C 84 % @ 72 V 4.8 (Minimum)Mh ±1% ±1% 75mV Pk-Pk
RS庫存編號 139-2986
製造零件編號R-78S3.3-0.1
BrandRecom
HK$50.45
單位
0.65 → 3.15V dc 3.3V dc 1 100mA 0.33W Through Hole SIP 4 -40°C +100°C 93% 78172000h ±1% ±0.3% 100mV Pk-Pk
全新
RS庫存編號 190-8149
製造零件編號MAX17543ATP+
HK$35.172
/個 (每包:5個)
單位
4.5 → 42V dc 4.75 → 5.25V dc 1 2.5A - Surface Mount - -40°C +125°C 90% - - - -
RS庫存編號 178-3477
製造零件編號STS1005S2V5
BrandXP Power
HK$80.75
單位
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庫存編號 186-1305
製造零件編號NCP4306AAAZZZAMNTWG
HK$3.44
個 (在毎卷:4000)
單位
35 (Maximum)V dc - 1 2 (Source) A, 7 (Sink) A - Surface Mount DFN (CASE 488AF) -40°C +125°C - - - - -
RS庫存編號 755-3422
製造零件編號TSRN 1-24150
BrandTRACOPOWER
HK$131.58
單位
16.5 21 V dc, 16.5 42 V dc 15V dc 1 1 A, 200 mA - Through Hole SIP -40°C +85°C 84 %, 92 % 6000000h ±0.4% ±0.2% 75mV Pk-Pk
RS庫存編號 917-6626
製造零件編號R-78E3.3-1.0
BrandRecom
HK$28.44
單位
7 → 28V dc 3.3V dc 1 1A - Through Hole SIP -40°C +85°C 87% 3875000h ±1.5% ±1% 120mV Pk-Pk
RS庫存編號 166-5661
製造零件編號TSRN 1-2415
BrandTRACOPOWER
HK$93.60
毎管:10 個
Tube(s)
4.6 → 32 V dc, 4.6 → 42 V dc ±1.5V dc 1 1 A, 600 mA - Through Hole SIP -40°C +85°C 64 %, 66 % 6000000h ±0.4% ±0.2% 50mV Pk-Pk