STMicroelectronics R7986A

Description

The R7986A 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 large ambient temperature range makes it ideal for aerospace and defense applications.

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

Features

• General features
• 3 A DC output current
• 4.5 V to 38 V input voltage
• Large ambient temperature range: -40 °C to 125 °C
• 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
• Aerospace and defense features
• Suitable for use in aerospace and defense applications
• Dedicated traceability and part marking
• Production parts approval documents available
• Adapted extended life time and obsolescence management
• Extended product change notification process
• Designed and manufactured to meet sub-ppm quality goals
• Advanced mold and frame designs for superior resilience in harsh environments (acceleration, EMI, thermal, humidity)
• Extended screening capability on request

Remarks:List of inductorsRefer page no.17

Typical applications

• Dedicated to aerospace applications
• Aerospace LED driving

More information

• Datasheet
• IC product information