Exar Corporation Products - PMIC - Voltage Regulators - DC DC Switching Controllers

SP6126EK1-L
Exar Corporation

IC REG CTRLR BUCK 6TSOT

Package: SOT-23-6 Thin, TSOT-23-6

Stock5,744
XR77129ELBMTR-F
Exar Corporation

IC REG CTRLR BUCK SMBUS 44TQFN

Package: 44-WFQFN Exposed Pad

Stock4,256
XR77129ELBTR-F
Exar Corporation

IC REG CTRLR BUCK SMBUS 44TQFN

Package: 44-WFQFN Exposed Pad

Stock7,600
XR77128ELBMTR-F
Exar Corporation

IC REG CTRLR BUCK SMBUS 44TQFN

Package: 44-WFQFN Exposed Pad

Stock6,160
XR77128ELBTR-F
Exar Corporation

IC REG CTRLR BUCK SMBUS 44TQFN

Package: 44-WFQFN Exposed Pad

Stock2,576
XRP7704ILB-F
Exar Corporation

IC REG CTRLR BUCK I2C 40TQFN

Package: 40-WFQFN Exposed Pad

Stock318,684
XRP7704ILBTR-F
Exar Corporation

IC REG CTRLR BUCK I2C 40TQFN

Package: 40-WFQFN Exposed Pad

Stock594,108
XR71211EH-F
Exar Corporation

IC REG CTRLR BUCK 10DFN

Package: 10-VFDFN Exposed Pad

Stock2,688
XR71211EHMTR-F
Exar Corporation

IC REG CTRLR BUCK 10DFN

Package: 10-VFDFN Exposed Pad

Stock2,752
XR75100ELMTR-F
Exar Corporation

IC REG CTRLR BUCK 16QFN

Package: 16-VFQFN Exposed Pad

Stock3,280
SP6128AEY-L
Exar Corporation

IC REG CTRLR BUCK 14TSSOP

Package: 14-TSSOP (0.173", 4.40mm Width)

Stock204,768
XR71211EHTR-F
Exar Corporation

IC REG CTRLR BUCK 10DFN

Package: 10-VFDFN Exposed Pad

Stock6,736
XR75100ELTR-F
Exar Corporation

IC REG CTRLR BUCK 16QFN

Package: 16-VFQFN Exposed Pad

Stock4,112
XRP6124ES0.5-F
Exar Corporation

IC REG CTRLR BUCK SOT23-5

Package: SC-74A, SOT-753

Stock18,144
SP6128AHY-L/TR
Exar Corporation

IC REG CTRLR BUCK 14TSSOP

Package: 14-TSSOP (0.173", 4.40mm Width)

Stock5,824
SP6128AEY-L/TR
Exar Corporation

IC REG CTRLR BUCK 14TSSOP

Package: 14-TSSOP (0.173", 4.40mm Width)

Stock5,808
SP6136ER1-L/TR
Exar Corporation

IC REG CTRLR BUCK 16QFN

Package: 16-VFQFN Exposed Pad

Stock2,032
XRP6124HVESTR0.5-F
Exar Corporation

IC REG CTRLR BUCK SOT23-5

Package: SC-74A, SOT-753

Stock120,000
SP6133ER1-L/TR
Exar Corporation

IC REG CTRLR BUCK 16QFN

Package: 16-VFQFN Exposed Pad

Stock61,284
SP6132HEU-L/TR
Exar Corporation

IC REG CTRLR BUCK 10MSOP

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Stock25,320

Part Number	Manufacturer	Description	Package	Stock	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
SP6126EK1-L	Exar Corporation	IC REG CTRLR BUCK 6TSOT Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 4.5 V ~ 29 V Frequency - Switching: 600kHz Duty Cycle (Max): 100% Synchronous Rectifier: No Clock Sync: No Serial Interfaces: - Control Features: - Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: SOT-23-6 Thin, TSOT-23-6 Supplier Device Package: 6-TSOT	Package: SOT-23-6 Thin, TSOT-23-6	Stock5,744	Step-Down	Positive	Buck	1	1	4.5 V ~ 29 V	600kHz	100%	No	No	-	-	-40°C ~ 125°C (TJ)	SOT-23-6 Thin, TSOT-23-6	6-TSOT
XR77129ELBMTR-F	Exar Corporation	IC REG CTRLR BUCK SMBUS 44TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 6 V ~ 40 V Frequency - Switching: 105kHz ~ 1.23MHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C, SMBus Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 44-WFQFN Exposed Pad Supplier Device Package: 44-TQFN (7x7)	Package: 44-WFQFN Exposed Pad	Stock4,256	Step-Down	Positive	Buck	4	1	6 V ~ 40 V	105kHz ~ 1.23MHz	-	Yes	No	I2C, SMBus	Enable	-40°C ~ 125°C (TJ)	44-WFQFN Exposed Pad	44-TQFN (7x7)
XR77129ELBTR-F	Exar Corporation	IC REG CTRLR BUCK SMBUS 44TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 6 V ~ 40 V Frequency - Switching: 105kHz ~ 1.23MHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C, SMBus Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 44-WFQFN Exposed Pad Supplier Device Package: 44-TQFN (7x7)	Package: 44-WFQFN Exposed Pad	Stock7,600	Step-Down	Positive	Buck	4	1	6 V ~ 40 V	105kHz ~ 1.23MHz	-	Yes	No	I2C, SMBus	Enable	-40°C ~ 125°C (TJ)	44-WFQFN Exposed Pad	44-TQFN (7x7)
XR77128ELBMTR-F	Exar Corporation	IC REG CTRLR BUCK SMBUS 44TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 25 V Frequency - Switching: 105kHz ~ 1.23MHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C, SMBus Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 44-WFQFN Exposed Pad Supplier Device Package: 44-TQFN (7x7)	Package: 44-WFQFN Exposed Pad	Stock6,160	Step-Down	Positive	Buck	4	1	5.5 V ~ 25 V	105kHz ~ 1.23MHz	-	Yes	No	I2C, SMBus	Enable	-40°C ~ 125°C (TJ)	44-WFQFN Exposed Pad	44-TQFN (7x7)
XR77128ELBTR-F	Exar Corporation	IC REG CTRLR BUCK SMBUS 44TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 25 V Frequency - Switching: 105kHz ~ 1.23MHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C, SMBus Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 44-WFQFN Exposed Pad Supplier Device Package: 44-TQFN (7x7)	Package: 44-WFQFN Exposed Pad	Stock2,576	Step-Down	Positive	Buck	4	1	5.5 V ~ 25 V	105kHz ~ 1.23MHz	-	Yes	No	I2C, SMBus	Enable	-40°C ~ 125°C (TJ)	44-WFQFN Exposed Pad	44-TQFN (7x7)
XRP7704ILB-F	Exar Corporation	IC REG CTRLR BUCK I2C 40TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 4 Voltage - Supply (Vcc/Vdd): 6.5 V ~ 20 V Frequency - Switching: 300kHz ~ 1.5MHz Duty Cycle (Max): 85% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 40-WFQFN Exposed Pad Supplier Device Package: 40-TQFN (6x6)	Package: 40-WFQFN Exposed Pad	Stock318,684	Step-Down	Positive	Buck	4	4	6.5 V ~ 20 V	300kHz ~ 1.5MHz	85%	Yes	No	I2C	Enable	-40°C ~ 125°C (TJ)	40-WFQFN Exposed Pad	40-TQFN (6x6)
XRP7704ILBTR-F	Exar Corporation	IC REG CTRLR BUCK I2C 40TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 4 Voltage - Supply (Vcc/Vdd): 6.5 V ~ 20 V Frequency - Switching: 300kHz ~ 1.5MHz Duty Cycle (Max): 85% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 40-WFQFN Exposed Pad Supplier Device Package: 40-TQFN (6x6)	Package: 40-WFQFN Exposed Pad	Stock594,108	Step-Down	Positive	Buck	4	4	6.5 V ~ 20 V	300kHz ~ 1.5MHz	85%	Yes	No	I2C	Enable	-40°C ~ 125°C (TJ)	40-WFQFN Exposed Pad	40-TQFN (6x6)
XR71211EH-F	Exar Corporation	IC REG CTRLR BUCK 10DFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 40 V Frequency - Switching: 100kHz ~ 800kHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit, Enable, On Time Control, Power Good, Soft Start Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 10-VFDFN Exposed Pad Supplier Device Package: 10-DFN (3x3)	Package: 10-VFDFN Exposed Pad	Stock2,688	Step-Down	Positive	Buck	1	1	5.5 V ~ 40 V	100kHz ~ 800kHz	-	Yes	No	-	Current Limit, Enable, On Time Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	10-VFDFN Exposed Pad	10-DFN (3x3)
XR71211EHMTR-F	Exar Corporation	IC REG CTRLR BUCK 10DFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 40 V Frequency - Switching: 100kHz ~ 800kHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit, Enable, On Time Control, Power Good, Soft Start Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 10-VFDFN Exposed Pad Supplier Device Package: 10-DFN (3x3)	Package: 10-VFDFN Exposed Pad	Stock2,752	Step-Down	Positive	Buck	1	1	5.5 V ~ 40 V	100kHz ~ 800kHz	-	Yes	No	-	Current Limit, Enable, On Time Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	10-VFDFN Exposed Pad	10-DFN (3x3)
XR75100ELMTR-F	Exar Corporation	IC REG CTRLR BUCK 16QFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 40 V Frequency - Switching: - Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit, Enable, On Time Control, Power Good, Soft Start Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3)	Package: 16-VFQFN Exposed Pad	Stock3,280	Step-Down	Positive	Buck	1	1	5.5 V ~ 40 V	-	-	Yes	No	-	Current Limit, Enable, On Time Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	16-VFQFN Exposed Pad	16-QFN (3x3)
SP6128AEY-L	Exar Corporation	IC REG CTRLR BUCK 14TSSOP Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 5.5 V Frequency - Switching: 300kHz Duty Cycle (Max): 90% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit Operating Temperature: -40°C ~ 85°C (TA) Package / Case: 14-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 14-TSSOP	Package: 14-TSSOP (0.173", 4.40mm Width)	Stock204,768	Step-Down	Positive	Buck	1	1	3 V ~ 5.5 V	300kHz	90%	Yes	No	-	Current Limit	-40°C ~ 85°C (TA)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP
XR71211EHTR-F	Exar Corporation	IC REG CTRLR BUCK 10DFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 40 V Frequency - Switching: 100kHz ~ 800kHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit, Enable, On Time Control, Power Good, Soft Start Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 10-VFDFN Exposed Pad Supplier Device Package: 10-DFN (3x3)	Package: 10-VFDFN Exposed Pad	Stock6,736	Step-Down	Positive	Buck	1	1	5.5 V ~ 40 V	100kHz ~ 800kHz	-	Yes	No	-	Current Limit, Enable, On Time Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	10-VFDFN Exposed Pad	10-DFN (3x3)
XR75100ELTR-F	Exar Corporation	IC REG CTRLR BUCK 16QFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 40 V Frequency - Switching: - Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit, Enable, On Time Control, Power Good, Soft Start Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3)	Package: 16-VFQFN Exposed Pad	Stock4,112	Step-Down	Positive	Buck	1	1	5.5 V ~ 40 V	-	-	Yes	No	-	Current Limit, Enable, On Time Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	16-VFQFN Exposed Pad	16-QFN (3x3)
XRP6124ES0.5-F	Exar Corporation	IC REG CTRLR BUCK SOT23-5 Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 18 V Frequency - Switching: 200kHz ~ 833kHz Duty Cycle (Max): - Synchronous Rectifier: No Clock Sync: No Serial Interfaces: - Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: SC-74A, SOT-753 Supplier Device Package: SOT-23-5	Package: SC-74A, SOT-753	Stock18,144	Step-Down	Positive	Buck	1	1	3 V ~ 18 V	200kHz ~ 833kHz	-	No	No	-	Enable	-40°C ~ 125°C (TJ)	SC-74A, SOT-753	SOT-23-5
SP6128AHY-L/TR	Exar Corporation	IC REG CTRLR BUCK 14TSSOP Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 5.5 V Frequency - Switching: 300kHz Duty Cycle (Max): 90% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit Operating Temperature: -40°C ~ 105°C (TA) Package / Case: 14-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 14-TSSOP	Package: 14-TSSOP (0.173", 4.40mm Width)	Stock5,824	Step-Down	Positive	Buck	1	1	3 V ~ 5.5 V	300kHz	90%	Yes	No	-	Current Limit	-40°C ~ 105°C (TA)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP
SP6128AEY-L/TR	Exar Corporation	IC REG CTRLR BUCK 14TSSOP Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 5.5 V Frequency - Switching: 300kHz Duty Cycle (Max): 90% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit Operating Temperature: -40°C ~ 85°C (TA) Package / Case: 14-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 14-TSSOP	Package: 14-TSSOP (0.173", 4.40mm Width)	Stock5,808	Step-Down	Positive	Buck	1	1	3 V ~ 5.5 V	300kHz	90%	Yes	No	-	Current Limit	-40°C ~ 85°C (TA)	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP
SP6136ER1-L/TR	Exar Corporation	IC REG CTRLR BUCK 16QFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5 V ~ 24 V Frequency - Switching: 600kHz Duty Cycle (Max): 100% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Enable, Power Good, Soft Start Operating Temperature: -40°C ~ 85°C (TA) Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3)	Package: 16-VFQFN Exposed Pad	Stock2,032	Step-Down	Positive	Buck	1	1	5 V ~ 24 V	600kHz	100%	Yes	No	-	Enable, Power Good, Soft Start	-40°C ~ 85°C (TA)	16-VFQFN Exposed Pad	16-QFN (3x3)
XRP6124HVESTR0.5-F	Exar Corporation	IC REG CTRLR BUCK SOT23-5 Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 4.5 V ~ 30 V Frequency - Switching: 100kHz ~ 1MHz Duty Cycle (Max): - Synchronous Rectifier: No Clock Sync: No Serial Interfaces: - Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: SC-74A, SOT-753 Supplier Device Package: SOT-23-5	Package: SC-74A, SOT-753	Stock120,000	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
SP6133ER1-L/TR	Exar Corporation	IC REG CTRLR BUCK 16QFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5 V ~ 24 V Frequency - Switching: 300kHz Duty Cycle (Max): 100% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Enable, Power Good, Soft Start Operating Temperature: -40°C ~ 85°C (TA) Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3)	Package: 16-VFQFN Exposed Pad	Stock61,284	Step-Down	Positive	Buck	1	1	5 V ~ 24 V	300kHz	100%	Yes	No	-	Enable, Power Good, Soft Start	-40°C ~ 85°C (TA)	16-VFQFN Exposed Pad	16-QFN (3x3)
SP6132HEU-L/TR	Exar Corporation	IC REG CTRLR BUCK 10MSOP Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 28 V Frequency - Switching: 300kHz Duty Cycle (Max): 100% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Soft Start Operating Temperature: -40°C ~ 85°C (TA) Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock25,320	Step-Down	Positive	Buck	1	1	3 V ~ 28 V	300kHz	100%	Yes	No	-	Soft Start	-40°C ~ 85°C (TA)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
SP6134HEU-L/TR	Exar Corporation	IC REG CTRLR BUCK 10MSOP Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 28 V Frequency - Switching: 600kHz Duty Cycle (Max): 100% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Soft Start Operating Temperature: -40°C ~ 85°C (TA) Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-MSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock40,800	Step-Down	Positive	Buck	1	1	3 V ~ 28 V	600kHz	100%	Yes	No	-	Soft Start	-40°C ~ 85°C (TA)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-MSOP
SP6123CN-L/TR	Exar Corporation	IC REG CTRLR BUCK 8SOIC Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 5.5 V Frequency - Switching: 300kHz Duty Cycle (Max): 93% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: - Operating Temperature: 0°C ~ 70°C (TA) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock63,204	Step-Down	Positive	Buck	1	1	3 V ~ 5.5 V	300kHz	93%	Yes	No	-	-	0°C ~ 70°C (TA)	8-SOIC (0.154", 3.90mm Width)	8-SOIC
SP6123ACN-L/TR	Exar Corporation	IC REG CTRLR BUCK 8SOIC Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 5.5 V Frequency - Switching: 500kHz Duty Cycle (Max): 93% Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: - Operating Temperature: 0°C ~ 70°C (TA) Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock1,779,216	Step-Down	Positive	Buck	1	1	3 V ~ 5.5 V	500kHz	93%	Yes	No	-	-	0°C ~ 70°C (TA)	8-SOIC (0.154", 3.90mm Width)	8-SOIC
XRP6124ESTR0.5-F	Exar Corporation	IC REG CTRLR BUCK SOT23-5 Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 3 V ~ 18 V Frequency - Switching: 200kHz ~ 833kHz Duty Cycle (Max): - Synchronous Rectifier: No Clock Sync: No Serial Interfaces: - Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: SC-74A, SOT-753 Supplier Device Package: SOT-23-5	Package: SC-74A, SOT-753	Stock4,416	Step-Down	Positive	Buck	1	1	3 V ~ 18 V	200kHz ~ 833kHz	-	No	No	-	Enable	-40°C ~ 125°C (TJ)	SC-74A, SOT-753	SOT-23-5
XR75100EL-F	Exar Corporation	IC REG CTRLR BUCK 16QFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 40 V Frequency - Switching: - Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: - Control Features: Current Limit, Enable, On Time Control, Power Good, Soft Start Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3)	Package: 16-VFQFN Exposed Pad	Stock16,056	Step-Down	Positive	Buck	1	1	5.5 V ~ 40 V	-	-	Yes	No	-	Current Limit, Enable, On Time Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	16-VFQFN Exposed Pad	16-QFN (3x3)
XRP6124HVES0.5-F	Exar Corporation	IC REG CTRLR BUCK SOT23-5 Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 1 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 4.5 V ~ 30 V Frequency - Switching: 100kHz ~ 1MHz Duty Cycle (Max): - Synchronous Rectifier: No Clock Sync: No Serial Interfaces: - Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: SC-74A, SOT-753 Supplier Device Package: SOT-23-5	Package: SC-74A, SOT-753	Stock7,520	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
XR77128ELB-F	Exar Corporation	IC REG CTRLR BUCK SMBUS 44TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 5.5 V ~ 25 V Frequency - Switching: 105kHz ~ 1.23MHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C, SMBus Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 44-WFQFN Exposed Pad Supplier Device Package: 44-TQFN (7x7)	Package: 44-WFQFN Exposed Pad	Stock7,296	Step-Down	Positive	Buck	4	1	5.5 V ~ 25 V	105kHz ~ 1.23MHz	-	Yes	No	I2C, SMBus	Enable	-40°C ~ 125°C (TJ)	44-WFQFN Exposed Pad	44-TQFN (7x7)
XR77129ELB-F	Exar Corporation	IC REG CTRLR BUCK SMBUS 44TQFN Output Type: Transistor Driver Function: Step-Down Output Configuration: Positive Topology: Buck Number of Outputs: 4 Output Phases: 1 Voltage - Supply (Vcc/Vdd): 6 V ~ 40 V Frequency - Switching: 105kHz ~ 1.23MHz Duty Cycle (Max): - Synchronous Rectifier: Yes Clock Sync: No Serial Interfaces: I2C, SMBus Control Features: Enable Operating Temperature: -40°C ~ 125°C (TJ) Package / Case: 44-WFQFN Exposed Pad Supplier Device Package: 44-TQFN (7x7)	Package: 44-WFQFN Exposed Pad	Stock16,206	Step-Down	Positive	Buck	4	1	6 V ~ 40 V	105kHz ~ 1.23MHz	-	Yes	No	I2C, SMBus	Enable	-40°C ~ 125°C (TJ)	44-WFQFN Exposed Pad	44-TQFN (7x7)