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2A buck switch demonstration board based on L7985A

STEVAL-ISA098V1

Overview

The STEVAL-ISA098V1 demonstration board is a step-down switching power supply based on the L7985A in HSOP8 package.

The L7985A is a step-down regulator with a 2.5 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2 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.

Main features

2 A DC output current
From 4.5 V to 38 V range 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
RoHS compliant

Design Files

Related Devices

Devices	Class	introduce	Datasheet
L7985	Power/power management;The power supply circuit	Switching Voltage Regulators 2A Step Down REG 4.5V to 38V 250 KHz	Download

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Update:2024-11-22 12:34:45

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