A7986A - 3 A step-down switching regulator for automotive applications - STMicroelectronics

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Product overview

Description

The A7986A is a step-down switching regulator with a 3.7 A (min.) current limited embedded power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions.

The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.

Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

The HSOP8 package with exposed pad allows the reduction of R_th(JA) down to 40 °C/W.

All features
AEC-Q100 qualified

3 A DC output current

4.5 V to 38 V input voltage

Output voltage adjustable from 0.6 V

250 kHz switching frequency, programmable up to 1 MHz

Internal soft-start and enable
Low dropout operation: 100% duty cycle

Voltage feed-forward

Zero load current operation

Overcurrent and thermal protection

HSOP8 package
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	Resource title	Version	Latest update

SPICE models (1)

	Resource title	Version	Latest update
ZIP	X798X Pspice model		22 Sep 2016	22 Sep 2016 X798X Pspice model

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
A7986A	NRND	PowerSO-8	Automotive	Ecopack2	PDF XML
A7986ATR	Active	PowerSO-8	Automotive	Ecopack2	PDF XML

A7986A

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PowerSO-8

Material Declaration**:

A7986ATR

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PowerSO-8

Material Declaration**:

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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