LM26484 Series

Two DCDC and One LDO Configurable PMIC

Catalog

Two DCDC and One LDO Configurable PMIC

Part	Utilized IC / Part	Main Purpose	Voltage - Output	Outputs and Type	Outputs and Type	Voltage - Input [Max]	Voltage - Input [Min]	Board Type	Regulator Topology	Supplied Contents	Frequency - Switching	Current - Output	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Applications
Texas Instruments LM26484SQEV	LM26484	DC/DC Step Down with LDO	1 V 1.8 V	Non-Isolated	3	5.5 V	3 V	Fully Populated	Buck	Board(s)	2 MHz	1 A 2 A
Texas Instruments LM26484SQ/NOPB													Surface Mount	5.5 V	3 V	24-WQFN (4x5)	24-WFQFN Exposed Pad	125 °C	-40 °C	Digital Cores
Texas Instruments LM26484SQE/NOPB													Surface Mount	5.5 V	3 V	24-WQFN (4x5)	24-WFQFN Exposed Pad	125 °C	-40 °C	Digital Cores

Catalog

Two DCDC and One LDO Configurable PMIC

Key Features

• Step-Down DC/DC Converter (Buck)3.0–5.5V Input RangeExternally Adjustable VOUT:Bucks 1 & 2: 0.8V–3.5V @ 2A180° Phase Shift Between Bucks Clocks2 MHz PWM Switching Frequency±1% feedback Voltage AccuracyAutomatic Soft StartCurrent Overload ProtectionPWM/PFM efficiency Modes AvailableLinear Regulator (LDO) Controller3.0V–5.5V Input RangeExternally Adjustable VOUT±1.5% Feedback Voltage AccuracyRegulated to Low VIN- Low VOUTLI-LO (Low Input Low Output) NFET OperationInput to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2Up to 1000 mA Output Current by Selection of External FETAll trademarks are the property of their respective owners.Step-Down DC/DC Converter (Buck)3.0–5.5V Input RangeExternally Adjustable VOUT:Bucks 1 & 2: 0.8V–3.5V @ 2A180° Phase Shift Between Bucks Clocks2 MHz PWM Switching Frequency±1% feedback Voltage AccuracyAutomatic Soft StartCurrent Overload ProtectionPWM/PFM efficiency Modes AvailableLinear Regulator (LDO) Controller3.0V–5.5V Input RangeExternally Adjustable VOUT±1.5% Feedback Voltage AccuracyRegulated to Low VIN- Low VOUTLI-LO (Low Input Low Output) NFET OperationInput to the LI-LO Configuration, Can Be Post Regulated When Supply is Regulated by Buck2Up to 1000 mA Output Current by Selection of External FETAll trademarks are the property of their respective owners.

Description

The LM26484 is a multi-function, configurable Power Management Unit. This device integrates two highly efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and thermal overload protection circuitry. All regulator output voltages are externally adjustable. The LDO controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-24 pin package. The LM26484 is a multi-function, configurable Power Management Unit. This device integrates two highly efficient 2.0A Step-Down DC/DC converters, one LDO Controller, a POR (Power On Reset) circuit, and thermal overload protection circuitry. All regulator output voltages are externally adjustable. The LDO controller is a low-voltage NMOS voltage regulator. The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-24 pin package.