Frequency - Switching is 100kHz ~ 1MHz - PMIC - Voltage Regulators - DC DC Switching Controllers Distributor - L6730 L6730D LM1771SMM/NOPB

Part Number	Manufacturer / Brand	Brife Description	Part Status	Output Type	Function	Output Configuration	Topology	Number of Outputs	Output Phases	Voltage - Supply (Vcc/Vdd)	Frequency - Switching	Duty Cycle (Max)	Synchronous Rectifier	Clock Sync	Serial Interfaces	Control Features	Operating Temperature	Package / Case	Supplier Device Package
L6730	STMicroelectronics	IC Regulators Controller BUCK 20TSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 14 V	100kHz ~ 1MHz	100%	Yes	Yes	-	Enable, Frequency Control, Phase Control, Power Good, Soft Start	-40°C ~ 85°C (TA)	20-TSSOP (0.173", 4.40mm Width) Exposed Pad	20-HTSSOP
L6730D	STMicroelectronics	IC Regulators Controller BUCK 20TSSOP	Obsolete	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 14 V	100kHz ~ 1MHz	100%	Yes	Yes	-	Enable, Frequency Control, Phase Control, Power Good, Soft Start	-40°C ~ 85°C (TA)	20-TSSOP (0.173", 4.40mm Width) Exposed Pad	20-HTSSOP
LM1771SMM/NOPB	Texas Instruments	IC Regulators Controller BUCK 8VSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	2.8 V ~ 5.5 V	100kHz ~ 1MHz	-	Yes	No	-	Enable	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM1771TMM/NOPB	Texas Instruments	IC Regulators Controller BUCK 8VSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	2.8 V ~ 5.5 V	100kHz ~ 1MHz	-	Yes	No	-	Enable	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM1771TSD/NOPB	Texas Instruments	IC Regulators Controller BUCK 6WSON	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	2.8 V ~ 5.5 V	100kHz ~ 1MHz	-	Yes	No	-	Enable	-40°C ~ 125°C (TJ)	6-WDFN Exposed Pad	6-WSON (3x3)
LM1771UMM/NOPB	Texas Instruments	IC Regulators Controller BUCK 8VSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	2.8 V ~ 5.5 V	100kHz ~ 1MHz	-	Yes	No	-	Enable	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM3478MA/NOPB	Texas Instruments	IC Regulators Controller MULT TOPOLOGY 8SOIC	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	No	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-SOIC (0.154", 3.90mm Width)	8-SOIC
LM3478MAX/NOPB	Texas Instruments	IC Regulators Controller MULT TOPOLOGY 8SOIC	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	No	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-SOIC (0.154", 3.90mm Width)	8-SOIC
LM3478MM	Texas Instruments	IC Regulators Controller MULT TOP 8VSSOP	Not For New Designs	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	No	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM3478MM/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 8VSSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	No	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM3478MMX/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 8VSSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	No	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM3478QMM/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 8VSSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	No	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LM3481MM/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	85%	No	Yes	-	Enable, Frequency Control, Ramp, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-VSSOP
LM3481MMX/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	85%	No	Yes	-	Enable, Frequency Control, Ramp, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-VSSOP
LM3481QMM/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	85%	No	Yes	-	Enable, Frequency Control, Ramp, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-VSSOP
LM3481QMMX/NOPB	Texas Instruments	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	85%	No	Yes	-	Enable, Frequency Control, Ramp, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-VSSOP
LM3488MMX	Texas Instruments	IC Regulators Controller MULT TOP 8VSSOP	Obsolete	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, SEPIC	1	1	2.97 V ~ 40 V	100kHz ~ 1MHz	100%	No	Yes	-	Enable, Frequency Control	-40°C ~ 125°C (TJ)	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
LT3757AEDD#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOPOLOGY 10DFN	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-WFDFN Exposed Pad	10-DFN (3x3)
LT3757AEMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3757AEMSE#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3757EDD#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOPOLOGY 10DFN	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-WFDFN Exposed Pad	10-DFN (3x3)
LT3757EDD#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOPOLOGY 10DFN	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-WFDFN Exposed Pad	10-DFN (3x3)
LT3757EMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3757EMSE#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3757HMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 150°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3757IDD#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOPOLOGY 10DFN	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-WFDFN Exposed Pad	10-DFN (3x3)
LT3757IMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3757MPMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive and Negative	Boost, Flyback, SEPIC	1	1	2.9 V ~ 40 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-55°C ~ 150°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3758AEMSE#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3758AHMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 150°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3758EDD#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOPOLOGY 10DFN	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-WFDFN Exposed Pad	10-DFN (3x3)
LT3758EMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3758EMSE#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3758IDD#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOPOLOGY 10DFN	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-WFDFN Exposed Pad	10-DFN (3x3)
LT3758IMSE#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 10MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	5.5 V ~ 100 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad	10-MSOP-EP
LT3759EMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 12MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	1.6 V ~ 42 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	12-TSSOP (0.118", 3.00mm Width) Exposed Pad	12-MSOP-EP
LT3759EMSE#TRPBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 12MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	1.6 V ~ 42 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	12-TSSOP (0.118", 3.00mm Width) Exposed Pad	12-MSOP-EP
LT3759HMSE#PBF	Linear Technology/Analog Devices	IC Regulators Controller MULT TOP 12MSOP	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive or Negative, Isolation Capable	Boost, Flyback, SEPIC	1	1	1.6 V ~ 42 V	100kHz ~ 1MHz	-	No	Yes	-	Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 150°C (TJ)	12-TSSOP (0.118", 3.00mm Width) Exposed Pad	12-MSOP-EP
LTC3785EUF#PBF	Linear Technology/Analog Devices	IC Regulators Controller BUCK-BOOST 24QFN	Active	Transistor Driver	Step-Up/Step-Down	Positive	Buck-Boost	2	1	2.7 V ~ 10 V	100kHz ~ 1MHz	99%	Yes	No	-	Current Limit, Enable, Soft Start	-40°C ~ 85°C (TA)	24-WFQFN Exposed Pad	24-QFN (4x4)
LTC3785EUF-1#PBF	Linear Technology/Analog Devices	IC Regulators Controller BUCK-BOOST 24QFN	Active	Transistor Driver	Step-Up/Step-Down	Positive	Buck-Boost	2	1	2.7 V ~ 10 V	100kHz ~ 1MHz	99%	Yes	No	-	Current Limit, Enable, Soft Start	-40°C ~ 85°C (TA)	24-WFQFN Exposed Pad	24-QFN (4x4)
LTC7820EUFD#PBF	Linear Technology/Analog Devices	IC CHARGE PUMP DC/DC Controller 28QFN	Active	Transistor Driver	Step-Up, Step-Down	Positive	Buck, Boost	1	2	6 V ~ 72 V	100kHz ~ 1MHz	50%	No	No	-	Current Limit, Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	28-WFQFN Exposed Pad	28-QFN (4x5)
MAX15046BAEE+	Maxim Integrated	IC Regulators Controller BUCK 16QSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 40 V	100kHz ~ 1MHz	87.5%	Yes	No	-	Current Limit, Enable, Frequency Control, Power Good	-40°C ~ 125°C (TJ)	16-LSSOP (0.154", 3.90mm Width) Exposed Pad	16-QSOP-EP
MAX15046BAEE+T	Maxim Integrated	IC Regulators Controller BUCK 16QSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 40 V	100kHz ~ 1MHz	87.5%	Yes	No	-	Current Limit, Enable, Frequency Control, Power Good	-40°C ~ 125°C (TJ)	16-LSSOP (0.154", 3.90mm Width) Exposed Pad	16-QSOP-EP
MAX17599ATE+	Maxim Integrated	IC Regulators Controller BUCK 16TQFN	Active	Transistor Driver	Step-Down	Positive, Isolation Capable	Buck	1	1	4.5 V ~ 36 V	100kHz ~ 1MHz	72.5%	No	Yes	-	Dead Time Control, Enable, Frequency Control, Soft Start	-40°C ~ 125°C (TJ)	16-WFQFN Exposed Pad	16-TQFN (3x3)
MAX5066EUI+	Maxim Integrated	IC Regulators Controller BUCK 28TSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	2	2	4.75 V ~ 28 V	100kHz ~ 1MHz	-	Yes	No	-	Enable, Frequency Control	-40°C ~ 85°C (TA)	28-TSSOP (0.173", 4.40mm Width) Exposed Pad	28-TSSOP-EP
MAX5066EUI+T	Maxim Integrated	IC Regulators Controller BUCK 28TSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	2	2	4.75 V ~ 28 V	100kHz ~ 1MHz	-	Yes	No	-	Enable, Frequency Control	-40°C ~ 85°C (TA)	28-TSSOP (0.173", 4.40mm Width) Exposed Pad	28-TSSOP-EP
NCP5230MNTWG	ON Semiconductor	IC Regulators Controller BUCK 16QFN	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 13.2 V	100kHz ~ 1MHz	95%	No	Yes	-	Enable, Power Good	0°C ~ 85°C (TA)	16-VFQFN Exposed Pad	16-QFN (3x3)
SC4510ITSTRT	Semtech Corporation	IC Regulators Controller BUCK 20TSSOP	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.75 V ~ 16 V	100kHz ~ 1MHz	90%	Yes	Yes	-	Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 85°C (TA)	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
XRP6124HVES0.5-F	MaxLinear, Inc.	IC Regulators Controller BUCK SOT23-5	Obsolete	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 30 V	100kHz ~ 1MHz	-	No	No	-	Enable	-40°C ~ 125°C (TJ)	SC-74A, SOT-753	SOT-23-5
XRP6124HVESTR0.5-F	MaxLinear, Inc.	IC Regulators Controller BUCK SOT23-5	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5 V ~ 30 V	100kHz ~ 1MHz	-	No	No	-	Enable	-40°C ~ 125°C (TJ)	SC-74A, SOT-753	SOT-23-5

Manufacturers for PMIC - Voltage Regulators - DC DC Switching Controllers