LM5163H-Q1 Series

Automotive 6V-100-V input, 0.5-A synchronous high-temperature buck DC/DC converter with ultra-low IQ

Catalog

Automotive 6V-100-V input, 0.5-A synchronous high-temperature buck DC/DC converter with ultra-low IQ

Part	Voltage - Output (Min/Fixed)	Function	Synchronous Rectifier	Voltage - Output (Max) [Max]	Package / Case [y]	Package / Case [x]	Package / Case	Voltage - Input (Min) [Min]	Number of Outputs	Topology	Supplier Device Package	Current - Output	Voltage - Input (Max) [Max]	Output Configuration	Frequency - Switching	Output Type	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Grade	Qualification
Texas Instruments LM5163HQDDARQ1	1.2 V	Step-Down		100 V	3.9 mm	0.154 in	8-PowerSOIC	6 V	1	Buck	8-SO PowerPad	500 mA	100 V	Positive	1 MHz	Adjustable	Surface Mount	-40 °C	165 °C	Automotive	AEC-Q100

Catalog

Automotive 6V-100-V input, 0.5-A synchronous high-temperature buck DC/DC converter with ultra-low IQ

Key Features

• AEC-Q100-qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C, ambient temperature rangeDesigned for reliable and rugged applicationsWide input voltage range of 6 V to 100 VJunction temperature range: –40°C to +165°CThermal shutdown that ensures 165°CPeak and valley current-limit protectionInput UVLO and fixed 3-ms soft startOptimized for ultra-low EMI requirementsMeets CISPR 25 class 5 standardSuited for scalable automotive power suppliesLow minimum on- and off-times of 50 nsAdjustable switching frequency up to 1 MHzDiode emulation for high light-load efficiency10.5-µA no-load input quiescent current3-µA shutdown quiescent currentIntegration reduces solution size and costCOT mode control architectureIntegrated 0.725-Ω NFET buck switchIntegrated 0.34-Ω NFET synchronous rectifier eliminates external Schottky diode1.2-V internal voltage referenceNo loop compensation componentsInternal VCC bias regulator and boot diodeCreate a custom regulator design usingWEBENCH power designerAEC-Q100-qualified for automotive applicationsDevice temperature grade 1: –40°C to +125°C, ambient temperature rangeDesigned for reliable and rugged applicationsWide input voltage range of 6 V to 100 VJunction temperature range: –40°C to +165°CThermal shutdown that ensures 165°CPeak and valley current-limit protectionInput UVLO and fixed 3-ms soft startOptimized for ultra-low EMI requirementsMeets CISPR 25 class 5 standardSuited for scalable automotive power suppliesLow minimum on- and off-times of 50 nsAdjustable switching frequency up to 1 MHzDiode emulation for high light-load efficiency10.5-µA no-load input quiescent current3-µA shutdown quiescent currentIntegration reduces solution size and costCOT mode control architectureIntegrated 0.725-Ω NFET buck switchIntegrated 0.34-Ω NFET synchronous rectifier eliminates external Schottky diode1.2-V internal voltage referenceNo loop compensation componentsInternal VCC bias regulator and boot diodeCreate a custom regulator design usingWEBENCH power designer

Description

Coolants in powertrain systems can be expensive. There is an increase in ambient temperature requirements in powertrain applications as manufacturers reduce cost by decreasing the use of coolants in the system (water, air). In addition, power hungry systems in ADAS (camera modules) and powertrain often require high output power in small enclosures. These requirements drive the need for DC-DC converters to operate at high ambient temperatures resulting in the junction temperature to exceed 150°C. The LM5163H-Q1 synchronous buck converter is designed to function at elevated junction temperatures, up to 165°C, to enable high-density solutions that support high ambient temperature and output power specifications. The LM5163H-Q1 operates over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5163H-Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance 48-V battery automotive applications and MHEV/EV systems. The LM5163H-Q1 is qualified to higher temperature profiles than required by automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ integrated circuit package. the device 1.27-mm pin pitch provides adequate spacing for high-voltage applications. Coolants in powertrain systems can be expensive. There is an increase in ambient temperature requirements in powertrain applications as manufacturers reduce cost by decreasing the use of coolants in the system (water, air). In addition, power hungry systems in ADAS (camera modules) and powertrain often require high output power in small enclosures. These requirements drive the need for DC-DC converters to operate at high ambient temperatures resulting in the junction temperature to exceed 150°C. The LM5163H-Q1 synchronous buck converter is designed to function at elevated junction temperatures, up to 165°C, to enable high-density solutions that support high ambient temperature and output power specifications. The LM5163H-Q1 operates over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on-time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5163H-Q1 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance 48-V battery automotive applications and MHEV/EV systems. The LM5163H-Q1 is qualified to higher temperature profiles than required by automotive AEC-Q100 grade 1 and is available in a 8-pin SO PowerPAD™ integrated circuit package. the device 1.27-mm pin pitch provides adequate spacing for high-voltage applications.