A7986A Datasheet, PDF (1/42 Pages) STMicroelectronics – 3 A step-down switching regulator for automotive applications

A7986A
3 A step-down switching regulator for automotive applications
Datasheet - production data
Applications
• Dedicated to automotive applications
• Automotive LED driving
HSOP8 exposed pad
Features
• Qualified following AEC-Q100 requirements
• 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
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 V_IN.
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.
Figure 1. Application circuit
August 2013
This is information on a product in full production.
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