L5980：Up to 0.7 A step down switching regulator _ BDTIC a Leading Distributor in China

L5980：Up to 0.7 A step down switching regulator

The L5980 is a step-down switching regulator with a 1 A (min.) current limited embedded Power MOSFET, so it is able to deliver in excess of 0.7 A DC current to the load depending on the application condition.

The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to V_IN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus.

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 VFQFPN8 package with an exposed pad allows reducing the R_thJAdown to approximately 60 °C/W.

Key Features

0.7 A DC output current
2.9 V to 18 V input voltage
Output voltage adjustable from 0.6 V
250 kHz switching frequency, programmable up to 1 MHz
Internal soft-start and inhibit
Low dropout operation: 100% duty cycle
Voltage feedforward
Zero load current operation
Overcurrent and thermal protection
VFQFPN8 3 x 3 mm package

Product Specifications

Description	Version	Size
DS5035: 0.7 A step-down switching regulator	7.0	1 MB

Design Notes & Tips

Description	Version	Size
DN0011: ST1S03 alternative topology: Using a buck in a negative buck-boost configuration	1.1	359 KB

Brochures

Description	Version	Size
Brochure Power management guide	05.2016	4 MB

Solution Evaluation Tools

Part Number	Manufacturer	Description
EVAL5980		L5980, 0.7 A step-down switching regulator, evaluation board
STEVAL-ISA154V1		0.7 A step-down switching regulator evaluation board based on the L5980