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A6984 Datasheet (PDF) - STMicroelectronics

A6984 Datasheet PDF - STMicroelectronics
Part # A6984
Download  A6984 Download

File Size   4777.1 Kbytes
Page   47 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description 36 V, 400 mA automotive synchronous step-down switching regulator

A6984 Datasheet (PDF)

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A6984 Datasheet PDF - STMicroelectronics

Part # A6984
Download  A6984 Click to download

File Size   4777.1 Kbytes
Page   47 Pages
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics
Description 36 V, 400 mA automotive synchronous step-down switching regulator

A6984 Datasheet (HTML) - STMicroelectronics

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A6984 Product details

Description
The A6984 is a step-down monolithic switching
regulator able to deliver up to 400 mA DC. The
output voltage adjustability ranges from 0.9 V. The
fixed 3.3 V VOUT requires no external resistor
divider. The “low consumption mode” (LCM) is
designed for applications active during car
parking, so it maximizes the efficiency at light load
with controlled output voltage ripple. The “low
noise mode” (LNM) makes the switching
frequency almost constant over the load current
range, serving low noise application
specifications such as car audio/sensors. The
PGOOD open collector output can implement
output voltage sequencing during the power-up
phase. The synchronous rectification, designed
for high efficiency at medium-heavy load, and the
high switching frequency capability make the size
of the application compact. Pulse-by-pulse
current sensing on the low-side power element
implements effective constant current protection.
The package lead finishing guarantees side
solderability, thus allowing visual inspection
during manufacturing.

Features
 AEC-Q100 qualified
 400 mA DC output current
 4.5 V to 36 V operating input voltage
 Synchronous rectification
 Low consumption mode or low noise mode
 100 µA IQ at light load (LCM VOUT = 3.3 V)
 13 µA IQ-SHTDWN
 Adjustable fSW (250 kHz - 600 kHz)
 Output voltage adjustable from 0.9 V
 No resistor divider required for 3.3 V VOUT
 VBIAS maximizes efficiency at light load
 350 mA valley current limit
 Constant on-time control scheme
 PGOOD open collector
 Thermal shutdown

Applications
 Car body and ADAS applications (LCM)
 Car audio and low noise applications (LNM)




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About STMicroelectronics


STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.

The company offers a wide range of products including microcontrollers, sensors, power amplifiers, and integrated circuits for various applications in the automotive, industrial, and consumer markets.

Founded in 1987, STMicroelectronics has operations in over 100 countries and is one of the largest semiconductor companies in the world.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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