LM5156QDSSRQ1 TI Switching Voltage Regulators 2.2-MHz wide VIN nonsynchronous boost

1. Features

EC-Q100 qualified for automotive applications
– Temperature grade 1: –40°C to +125°C TA
• Functional Safety-Capable
– Documentation available to aid functional safetysystem design
• Suited for wide input operating range car batteryapplications
– 3.5-V to 60-V Operating range (65-V abs max)
– 2.97-V to 16-V When BIAS = VCC
– Minimum boost supply voltage 1.5 V whenBIAS ≥ 3.5 V
– Input transient protection up to 65 V
– Minimized battery drain
Low shutdown current (IQ ≤ 2.6 μA)
• Low operating current (IQ ≤ 490 μA)
Small solution size and low cost
– Maximum switching frequency of 2.2 MHz
– 12-Pin WSON package (3 mm × 2 mm) withwettable flanks
– Integrated error amplifier allows primary-sideregulation without optocoupler (flyback)
– Minimized undershoot during cranking (start-stop application)
EMI mitigation
– Selectable dual random spread spectrum
– Lead-less package
• Higher efficiency with low-power dissipation
– 100-mV ±7% accurate current limit threshold
– Strong 1.5-A peak standard MOSFET driver
– Supports external VCC supply
• Avoid AM band interference and crosstalk
– Optional clock synchronization
– Dynamically programmable switching frequencyfrom 100 kHz to 2.2 MHz
• Integrated protection features
– Constant peak current limiting over inputvoltage
Optional hiccup mode overload protection (seethe Device Comparison Table)– Programmable line UVLO
– OVP protection
– Thermal shutdown
Accurate ±1% accuracy feedback reference
• Programmable extra slope compensation
Adjustable soft start
• PGOOD indicator

2.Applications

Automotive 12-V or 24-V battery application
• Automotive start-stop application
• High voltage LiDAR power supply
• Multiple-output flyback without optocoupler
• Automotive rear-lights LED bias supply
• Wide input boost, SEPIC, flyback power module

3.Description

The LM5156x-Q1 (LM5156-Q1 and LM51561-Q1)device is a wide input range, non-synchronous boostcontroller that uses peak current mode control. Thedevice can be used in boost, SEPIC, and flybacktopologies.The LM5156x-Q1 device can start up from a 1-cellbattery with a minimum of 2.97 V if the BIAS pin isconnected to the VCC pin. It can operate with theinput supply voltage as low as 1.5 V if the BIAS pin isgreater than 3.5 V

4.Typical Boost Application

5.Pin Configuration and Functions

Shenzhen Hongxinwei Technology Co., Ltd is located in the Bao’an District of Shenzhen.It is a high-tech enterprise setting research and development, production, sales into an integration. The company covers an area of 15 acres, having modern producing workshop and professional production and testing equipments. The company has an existing staff of more than 100 people.The company has set up offices in Shenzhen, Hongkong and Singapore providing worldwide service.