TPS40051 Series

Wide Input Voltage Synchronous Buck Controller

Catalog

Wide Input Voltage Synchronous Buck Controller

Part	Control Features	Supplier Device Package	Number of Outputs	Output Phases	Mounting Type	Frequency - Switching	Output Configuration	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Duty Cycle (Max) [Max]	Package / Case	Package / Case	Function	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Topology
Texas Instruments TPS40051PWPRG4	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	1	1	Surface Mount	500 kHz	Positive	8 V	40 V	94 %	16-PowerTSSOP	0.173 in 4.4 mm Width	Step-Down	Transistor Driver	85 °C	-40 °C	Buck
Texas Instruments TPS40051PWPG4	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	1	1	Surface Mount	500 kHz	Positive	8 V	40 V	94 %	16-PowerTSSOP	0.173 in 4.4 mm Width	Step-Down	Transistor Driver	85 °C	-40 °C	Buck
Texas Instruments TPS40051PWPR	Current Limit Enable Frequency Control Soft Start	16-HTSSOP	1	1	Surface Mount	500 kHz	Positive	8 V	40 V	94 %	16-PowerTSSOP	0.173 in 4.4 mm Width	Step-Down	Transistor Driver	85 °C	-40 °C	Buck

Catalog

Wide Input Voltage Synchronous Buck Controller

Key Features

• Operating Input Voltage 8 V to 40 VInput Voltage Feed-Forward Compensation< 1 % Internal 0.7-V ReferenceProgrammable Fixed-Frequency Up to 1 MHz Voltage Mode ControllerInternal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs16-Pin PowerPAD™ Package (Package (JC= 2°C/W)Thermal ShutdownExternally SynchronizableProgrammable High-Side Current LimitProgrammable Closed-Loop Soft-StartTPS40050 Source OnlyTPS40051 Source/SinkTPS40053 Source/Sink With VOUTPrebiasAPPLICATIONSPower ModulesNetworking/TelecomIndustialServersPowerPAD™ is trademark of Texas Instruments.Operating Input Voltage 8 V to 40 VInput Voltage Feed-Forward Compensation< 1 % Internal 0.7-V ReferenceProgrammable Fixed-Frequency Up to 1 MHz Voltage Mode ControllerInternal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs16-Pin PowerPAD™ Package (Package (JC= 2°C/W)Thermal ShutdownExternally SynchronizableProgrammable High-Side Current LimitProgrammable Closed-Loop Soft-StartTPS40050 Source OnlyTPS40051 Source/SinkTPS40053 Source/Sink With VOUTPrebiasAPPLICATIONSPower ModulesNetworking/TelecomIndustialServersPowerPAD™ is trademark of Texas Instruments.

Description

The TPS4005x is a family of high-voltage, wide input (8 V to 40 V), synchronous, step-down converters. The TPS4005x family offers design flexibility with a variety of user programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit, and loop compensation. The TPS4005x are also synchronizable to an external supply. They incorporate MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction. The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients with near constant gain with input variation which eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads. The TPS4005x is a family of high-voltage, wide input (8 V to 40 V), synchronous, step-down converters. The TPS4005x family offers design flexibility with a variety of user programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit, and loop compensation. The TPS4005x are also synchronizable to an external supply. They incorporate MOSFET gate drivers for external N-channel high-side and synchronous rectifier (SR) MOSFETs. Gate drive logic incorporates anti-cross conduction circuitry to prevent simultaneous high-side and synchronous rectifier conduction. The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients with near constant gain with input variation which eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation utilizing an internal fault counter for longer duration overloads.