R7986A数据手册ST中文资料规格书

描述 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.

特性 Features

General features3 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 featuresSuitable 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