LM5175-Q1 Series

42-V wide VIN 4-switch synchronous buck-boost controller, AEC-Q100 qualified

Catalog

42-V wide VIN 4-switch synchronous buck-boost controller, AEC-Q100 qualified

Part	Qualification	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Control Features	Operating Temperature [Max]	Operating Temperature [Min]	Function	Output Phases	Output Configuration	Frequency - Switching [Max]	Frequency - Switching [Min]	Supplier Device Package	Topology	Mounting Type	Grade	Package / Case [custom]	Package / Case	Package / Case [custom]	Number of Outputs	Output Type	Voltage - Input [Max]	Voltage - Input [Min]	Frequency - Switching	Main Purpose	Outputs and Type	Outputs and Type	Board Type	Regulator Topology	Utilized IC / Part	Supplied Contents	Current - Output	Voltage - Output
Texas Instruments LM5175QPWPRQ1	AEC-Q100	42 V	3.5 V	Enable Frequency Control Power Good Soft Start	150 °C	-40 °C	Step-Up/Step-Down	1	Positive	600 kHz	100 kHz	28-HTSSOP	Buck-Boost	Surface Mount	Automotive	4.4 mm	28-PowerTSSOP	0.173 "	1	Transistor Driver
Texas Instruments LM5175EVM-HP																					36 V	6 V	260 kHz	DC/DC Step Up or Down	Non-Isolated	1	Fully Populated	Buck-Boost	LM5175	Board(s)	10 A	12 V
Texas Instruments LM5175RHFT		42 V	3.5 V	Enable Frequency Control Power Good Soft Start	125 ¯C	-40 °C	Step-Up/Step-Down	1	Positive	600 kHz	100 kHz	28-VQFN (5x4)	Buck-Boost	Surface Mount			28-VFQFN Exposed Pad		1	Transistor Driver
Texas Instruments LM5175RHFEVM-HD																					42 V	5.5 V	400 kHz	DC/DC Step Up or Down	Non-Isolated	1	Fully Populated	Buck-Boost	LM5175	Board(s)	6 A	12 V
Texas Instruments LM5175PWPT		42 V	3.5 V	Enable Frequency Control Power Good Soft Start	125 ¯C	-40 °C	Step-Up/Step-Down	1	Positive	600 kHz	100 kHz	28-HTSSOP	Buck-Boost	Surface Mount		4.4 mm	28-PowerTSSOP	0.173 "	1	Transistor Driver
Texas Instruments LM5175RHFR		42 V	3.5 V	Enable Frequency Control Power Good Soft Start	125 ¯C	-40 °C	Step-Up/Step-Down	1	Positive	600 kHz	100 kHz	28-VQFN (5x4)	Buck-Boost	Surface Mount			28-VFQFN Exposed Pad		1	Transistor Driver

Catalog

42-V wide VIN 4-switch synchronous buck-boost controller, AEC-Q100 qualified

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified with the following results:Device Temperature Grade 1: –40°C to+125°C Ambient Operating TemperatureRangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BSingle Inductor Buck-Boost Controller for Step-Up/Step-Down DC/DC ConversionWide VINRange: 3.5 V to 42 V, 60 V MaximumFlexible VOUTRange: 0.8 V to 55 VVOUTShort ProtectionHigh Efficiency Buck-Boost TransitionAdjustable Switching FrequencyOptional Frequency Sync and DitheringIntegrated 2-A MOSFET Gate DriversCycle-by-Cycle Current Limit and Optional HiccupOptional Input or Output Average Current LimitingProgrammable Input UVLO and Soft-StartPower Good and Output Overvoltage ProtectionSelectable CCM or DCM with Pulse SkippingHTSSOP-28 PackageQualified for Automotive ApplicationsAEC-Q100 Qualified with the following results:Device Temperature Grade 1: –40°C to+125°C Ambient Operating TemperatureRangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4BSingle Inductor Buck-Boost Controller for Step-Up/Step-Down DC/DC ConversionWide VINRange: 3.5 V to 42 V, 60 V MaximumFlexible VOUTRange: 0.8 V to 55 VVOUTShort ProtectionHigh Efficiency Buck-Boost TransitionAdjustable Switching FrequencyOptional Frequency Sync and DitheringIntegrated 2-A MOSFET Gate DriversCycle-by-Cycle Current Limit and Optional HiccupOptional Input or Output Average Current LimitingProgrammable Input UVLO and Soft-StartPower Good and Output Overvoltage ProtectionSelectable CCM or DCM with Pulse SkippingHTSSOP-28 Package

Description

The LM5175-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5175-Q1 operates over a wide input voltage range of 3.5 V to 42 V (60 V maximum) to support a variety of applications. The LM5175-Q1 employs current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal. The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5175-Q1 features selectable Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM) operation, optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions. The LM5175-Q1 is a synchronous four-switch buck-boost DC/DC controller capable of regulating the output voltage at, above, or below the input voltage. The LM5175-Q1 operates over a wide input voltage range of 3.5 V to 42 V (60 V maximum) to support a variety of applications. The LM5175-Q1 employs current-mode control both in buck and boost modes of operation for superior load and line regulation. The switching frequency is programmed by an external resistor and can be synchronized to an external clock signal. The device also features a programmable soft-start function and offers protection features including cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown. In addition, the LM5175-Q1 features selectable Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM) operation, optional average input or output current limiting, optional spread spectrum to reduce peak EMI, and optional hiccup mode protection in sustained overload conditions.