TPS40170-EP Series

Enhanced Product 4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller

Catalog

Enhanced Product 4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller

Part	Duty Cycle (Max)	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Mounting Type	Synchronous Rectifier	Topology	Package / Case	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Configuration	Frequency - Switching [Max]	Frequency - Switching [Min]	Clock Sync	Control Features	Number of Outputs	Output Type	Function	Output Phases
Texas Instruments V62/13607-01XE	95 %	125 ¯C	-55 °C	20-VQFN (3.5x4.5)	Surface Mount		Buck	20-VFQFN Exposed Pad	4.5 V	60 V	Positive	600 kHz	100 kHz		Current Limit Enable Frequency Control Power Good Soft Start Tracking	1	Transistor Driver	Step-Down	1

Catalog

Enhanced Product 4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller

Key Features

• Wide-Input Voltage Range from 4.5 V to 60 V600-mV Reference Voltage With 1% AccuracyProgrammable UVLO and HysteresisVoltage-Mode Control With Voltage Feed-ForwardProgrammable Frequency Between 100 kHz and 600 kHzBidirectional Frequency Synchronization With Master/Slave OptionLow-Side FET Sensing Overcurrent Protection and High-Side FET SensingShort-Circuit Protection With Integrated Thermal CompensationProgrammable Closed-Loop Soft-StartSupports Pre-Biased OutputsThermal Shutdown at 165°C With HysteresisVoltage TrackingPower GoodENABLE With 1-µA Low-Current Shutdown8-V and 3.3-V LDO OutputIntegrated Bootstrap Diode20-Pin 3.5-mm × 4.5-mm QFN (RGY) PackageWide-Input Voltage Range from 4.5 V to 60 V600-mV Reference Voltage With 1% AccuracyProgrammable UVLO and HysteresisVoltage-Mode Control With Voltage Feed-ForwardProgrammable Frequency Between 100 kHz and 600 kHzBidirectional Frequency Synchronization With Master/Slave OptionLow-Side FET Sensing Overcurrent Protection and High-Side FET SensingShort-Circuit Protection With Integrated Thermal CompensationProgrammable Closed-Loop Soft-StartSupports Pre-Biased OutputsThermal Shutdown at 165°C With HysteresisVoltage TrackingPower GoodENABLE With 1-µA Low-Current Shutdown8-V and 3.3-V LDO OutputIntegrated Bootstrap Diode20-Pin 3.5-mm × 4.5-mm QFN (RGY) Package

Description

TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-power-density, high-reliability dc-dc converter applications. The controller implements voltage-mode control with input-voltage feed-forward compensation that enables instant response to an input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz. The TPS40170 has a complete set of system protection and monitoring features such as programmable UVLO, programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET, and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1-µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output-voltage tracking, and adaptive dead-time control. TPS40170 provides accurate output-voltage regulation within 1% accuracy. Additionally, the controller implements a novel scheme of bidirectional synchronization with one controller acting as the master and other downstream controllers acting as slaves, synchronized to the master in-phase or 180° out-of-phase. Slave controllers can be synchronized to an external clock within ±30% of the free-running switching frequency. TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-power-density, high-reliability dc-dc converter applications. The controller implements voltage-mode control with input-voltage feed-forward compensation that enables instant response to an input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz. The TPS40170 has a complete set of system protection and monitoring features such as programmable UVLO, programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET, and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1-µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output-voltage tracking, and adaptive dead-time control. TPS40170 provides accurate output-voltage regulation within 1% accuracy. Additionally, the controller implements a novel scheme of bidirectional synchronization with one controller acting as the master and other downstream controllers acting as slaves, synchronized to the master in-phase or 180° out-of-phase. Slave controllers can be synchronized to an external clock within ±30% of the free-running switching frequency.