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LM5164QDDARQ1 +BOM

Energy-efficient voltage regulator capable of stepping down input voltages ranging from 6 to 100 volts, ideal for use in a variety of applications

Manufacturer:

Texas Instruments
Mfr.Part #:

LM5164QDDARQ1
Datasheet:

LM5164QDDARQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Function:

Step-Down
Output Configuration:

Positive
Topology:

Buck
EDA/CAD Models:

Request Free CAD Models for LM5164QDDARQ1

LM5164QDDARQ1 General Description

The LM5164QDDARQ1 is a synchronous buck DC-DC voltage regulator offered by Texas Instruments. This specific model is part of the LM5164-Q1 series, which is designed for automotive applications, making it suitable for use in vehicles.

Key Features

AEC-Q100-qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, ambient temperature range
Designed for reliable and rugged applications
- Wide input voltage range of 6 V to 100 V
- Junction temperature range: –40°C to +150°C
- Fixed 3-ms internal soft-start timer
- Peak and valley current-limit protection
- Input UVLO and thermal shutdown protection
Suited for scalable automotive power supplies
- Low minimum on- and off-times of 50 ns
- Adjustable switching frequency up to 1 MHz
- Diode emulation for high light-load efficiency
- 10.5-μA no-load input quiescent current
- 3-μA shutdown quiescent current
- Optimized for CISPR 25 EMI standard
Integration reduces solution size and cost
- COT mode control architecture
- Integrated 0.725-Ω NFET buck switch supports wide duty cycle range
- Integrated 0.34-Ω NFET synchronous rectifier eliminates external Schottky diode
- 1.2-V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode

Application

Automotive Power Supplies: These regulators are used to provide power to various automotive systems, including infotainment systems, lighting, and sensors.
Battery-Powered Devices: They are used in battery-powered applications like automotive telematics devices and portable equipment.
Industrial Control: In industrial settings, these regulators provide power to control systems and sensors.
Power Distribution: They are used in power distribution systems in vehicles and industrial equipment.
LED Lighting: LED driver applications for automotive and industrial lighting systems benefit from these regulators.
Power Management: They are used for general power management in automotive and industrial applications to ensure stable voltage levels.
Communication Equipment: These regulators can be used in communication equipment and networking devices.
Point-of-Load (POL) Converters: They are employed as point-of-load converters to provide voltage regulation for specific components in a system.
Automotive Safety Systems: They play a role in automotive safety systems and advanced driver assistance systems (ADAS).

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators	Series	Automotive, AEC-Q100
Function	Step-Down	Output Configuration	Positive
Topology	Buck	Output Type	Adjustable
Number of Outputs	1	Voltage - Input (Min)	6V
Voltage - Input (Max)	100V	Voltage - Output (Min/Fixed)	1.2V
Voltage - Output (Max)	100V	Current - Output	1A
Frequency - Switching	Up to 1MHz	Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 150°C (TJ)	Mounting Type	Surface Mount
Base Product Number	LM5164	Vin (min) (V)	6
Vin (max) (V)	100	Vout (min) (V)	1.2
Vout (max) (V)	90	Iout (max) (A)	1
Iq (typ) (mA)	0.01	Switching frequency (min) (kHz)	75
Switching frequency (max) (kHz)	1000	Features	Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable
Operating temperature range (°C)	-40 to 150	Rating	Automotive
TI functional safety category	Functional Safety-Capable	Regulated outputs (#)	1
Control mode	Constant on-time (COT)	Duty cycle (max) (%)	99
Type	Converter