TPS40100 Series

4.5-V to 18-V, synchronous buck controller with advanced sequencing and output margining

Catalog(3 parts)

Part	Output Phases▲▼	Control Features	Package / Case	Operating Temperature▲▼	Operating Temperature▲▼	Voltage - Supply (Vcc/Vdd)▲▼	Voltage - Supply (Vcc/Vdd)▲▼	Output Type	Supplier Device Package	Frequency - Switching▲▼	Frequency - Switching▲▼	Topology	Number of Outputs▲▼	Function	Mounting Type	Output Configuration
Texas Instruments TPS40100RGET Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-VQFN (4x4)	1 ul	Current Limit, Frequency Control, Power Good, Soft Start, Tracking	24-VFQFN Exposed Pad	85 °C	-40 °C	4.5 V	18 V	Transistor Driver	24-VQFN (4x4)	600000 Hz	100000 Hz	Buck	1 ul	Step-Down	Surface Mount	Positive
Texas Instruments TPS40100RGE Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-VQFN (4x4)	1 ul	Current Limit, Frequency Control, Power Good, Soft Start, Tracking	24-VFQFN Exposed Pad	85 °C	-40 °C	4.5 V	18 V	Transistor Driver	24-VQFN (4x4)	600000 Hz	100000 Hz	Buck	1 ul	Step-Down	Surface Mount	Positive
Texas Instruments TPS40100RGER Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-VQFN (4x4)	1 ul	Current Limit, Frequency Control, Power Good, Soft Start, Tracking	24-VFQFN Exposed Pad	85 °C	-40 °C	4.5 V	18 V	Transistor Driver	24-VQFN (4x4)	600000 Hz	100000 Hz	Buck	1 ul	Step-Down	Surface Mount	Positive

Key Features

• Operation over 4.5 V to 18 V Input RangeAdjustable Frequency (Between 100 kHz and 600 kHz) Current Feedback ControlOutput Voltage Range From 0.7 V to 5.5 VSimultaneous, Ratiometric and Sequential Startup SequencingAdaptive Gate DriveRemote Sensing (Via Separate GND/PGND)Internal Gate Drivers for N-channel MOSFETsInternal 5-V Regulator24-Pin QFN PackageThermal ShutdownProgrammable Overcurrent ProtectionPower Good Indicator1%, 690-mV ReferenceOutput Margining, 3% and 5%Programmable UVLO (with Programmable Hysteresis)Frequency SynchronizationAPPLICATIONSServersNetworking EquipmentCable Modems and RoutersXDSL Modems and RoutersSet-Top BoxesTelecommunications EquipmentPower Supply ModulesOperation over 4.5 V to 18 V Input RangeAdjustable Frequency (Between 100 kHz and 600 kHz) Current Feedback ControlOutput Voltage Range From 0.7 V to 5.5 VSimultaneous, Ratiometric and Sequential Startup SequencingAdaptive Gate DriveRemote Sensing (Via Separate GND/PGND)Internal Gate Drivers for N-channel MOSFETsInternal 5-V Regulator24-Pin QFN PackageThermal ShutdownProgrammable Overcurrent ProtectionPower Good Indicator1%, 690-mV ReferenceOutput Margining, 3% and 5%Programmable UVLO (with Programmable Hysteresis)Frequency SynchronizationAPPLICATIONSServersNetworking EquipmentCable Modems and RoutersXDSL Modems and RoutersSet-Top BoxesTelecommunications EquipmentPower Supply Modules

Description

The TPS40100 is a mid voltage, wide-input (between 4.5 V and 18 V), synchronous, step-down controller. The TPS40100 offers programmable closed loop soft-start, programmable UVLO (with programmable hysteresis), programmable inductor sensed current limit and can be synchronized to other timebases. The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic. The TPS40100 is a mid voltage, wide-input (between 4.5 V and 18 V), synchronous, step-down controller. The TPS40100 offers programmable closed loop soft-start, programmable UVLO (with programmable hysteresis), programmable inductor sensed current limit and can be synchronized to other timebases. The TPS40100 incorporates MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFET. Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing both cross conduction and diode conduction in the rectifier MOSFET. The externally programmable current limit provides a hiccup overcurrent recovery characteristic.