LM5122-Q1 Series

Automotive, 3-V to 65-V wide VIN, current mode synchronous boost controller with multiphase

Catalog

Automotive, 3-V to 65-V wide VIN, current mode synchronous boost controller with multiphase

Part	Mounting Type	Duty Cycle (Max) [Max]	Number of Outputs	Output Configuration	Topology	Control Features	Function	Output Phases	Package / Case	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Type	Frequency - Switching [Max]	Supplier Device Package	Package / Case [custom]	Qualification	Grade	Frequency - Switching	Board Type	Outputs and Type	Outputs and Type	Main Purpose	Regulator Topology	Current - Output	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Utilized IC / Part	Supplied Contents
Texas Instruments LM5122ZAPWPT	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in 4.4 mm	24-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	24-HTSSOP
Texas Instruments LM5122QMHE/NOPB	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in	20-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	20-HTSSOP	4.4 mm	AEC-Q100	Automotive
Texas Instruments LM5122MHE/NOPB	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in	20-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	20-HTSSOP	4.4 mm
Texas Instruments LM5122ZPWPT	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in 4.4 mm	24-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	24-HTSSOP
Texas Instruments LM5122ZPWPR	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in 4.4 mm	24-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	24-HTSSOP
Texas Instruments LM5122EVM-2PH																					250 kHz	Fully Populated	Non-Isolated	1	DC/DC Step Up	Boost	7 A	20 V	9 VDC	28 V	LM5122	Board(s)
Texas Instruments LM5122MHX/NOPB	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in	20-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	20-HTSSOP	4.4 mm
Texas Instruments LM5122MH/NOPB	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in	20-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	20-HTSSOP	4.4 mm
Texas Instruments LM5122QMH/NOPB	Surface Mount	100 %	1	Positive	Boost	Frequency Control Soft Start	Step-Up	1	0.173 in	20-PowerTSSOP	-40 °C	125 ¯C	65 V	4.5 V	Transistor Driver	1 MHz	20-HTSSOP	4.4 mm	AEC-Q100	Automotive

Catalog

Automotive, 3-V to 65-V wide VIN, current mode synchronous boost controller with multiphase

Key Features

• AEC-Q100 Qualified with the following results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C6Maximum Input Voltage: 65 VMinimum Input Voltage: 3 V (4.5 V for Start-Up)Output Voltage up to 100 VBypass (VOUT= VIN) Operation1.2-V Reference with ±1% AccuracyFree-Run and Synchronizable Switching to 1 MHzPeak-Current-Mode ControlRobust 3-A Integrated Gate DriversAdaptive Dead-Time ControlOptional Diode-Emulation ModeProgrammable Cycle-by-Cycle Current LimitHiccup-Mode Overload ProtectionProgrammable Line UVLOProgrammable Soft StartThermal Shutdown ProtectionLow Shutdown Quiescent Current: 9 µAProgrammable Slope CompensationProgrammable Skip-Cycle Mode Reduces Standby PowerAllows External VCC SupplyInductor DCR Current Sensing CapabilityMulti-phase CapabilityThermally Enhanced 20-Pin HTSSOPCreate a Custom Design Using the LM5122 With theWEBENCH®Power DesignerAEC-Q100 Qualified with the following results:Device Temperature Grade 1: –40°C to +125°C Ambient Operating TemperatureDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C6Maximum Input Voltage: 65 VMinimum Input Voltage: 3 V (4.5 V for Start-Up)Output Voltage up to 100 VBypass (VOUT= VIN) Operation1.2-V Reference with ±1% AccuracyFree-Run and Synchronizable Switching to 1 MHzPeak-Current-Mode ControlRobust 3-A Integrated Gate DriversAdaptive Dead-Time ControlOptional Diode-Emulation ModeProgrammable Cycle-by-Cycle Current LimitHiccup-Mode Overload ProtectionProgrammable Line UVLOProgrammable Soft StartThermal Shutdown ProtectionLow Shutdown Quiescent Current: 9 µAProgrammable Slope CompensationProgrammable Skip-Cycle Mode Reduces Standby PowerAllows External VCC SupplyInductor DCR Current Sensing CapabilityMulti-phase CapabilityThermally Enhanced 20-Pin HTSSOPCreate a Custom Design Using the LM5122 With theWEBENCH®Power Designer

Description

The LM5122ZA is a multi-phase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak-current-mode control. Current-mode control provides inherent line feed forward, cycle-by-cycle current limiting, and ease of loop compensation. The switching frequency is programmable up to 1 MHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode-emulation mode also enables discontinuous-mode operation for improved efficiency at light load conditions. An internal charge pump allows 100% duty cycle for high-side synchronous switch (bypass operation). A 180° phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup-mode current limit, and adjustable line undervoltage lockout. The LM5122ZA is a multi-phase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak-current-mode control. Current-mode control provides inherent line feed forward, cycle-by-cycle current limiting, and ease of loop compensation. The switching frequency is programmable up to 1 MHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode-emulation mode also enables discontinuous-mode operation for improved efficiency at light load conditions. An internal charge pump allows 100% duty cycle for high-side synchronous switch (bypass operation). A 180° phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup-mode current limit, and adjustable line undervoltage lockout.