STEVAL-ISA198V1：2 A step down DC - DC switching regulator (VIN = 4.5 V to 60 V) based on the L7987L
The STEVAL-ISA198V1 product evaluation board is a step-down switching power supply based
on the L7987L regulator in an HTSSOP16 package. The output voltage can be set starting
from 0.8 V. Low drop-out operation, due to the advanced integrated switch management,
can be achieved.
The L7987L is a 61 V, 2 A step-down asynchronous switching regulator with embedded power
MOSFET capable of delivering up to 2 A of current, depending on the application
conditions.
The embedded switch-over feature on the VBIAS pin and the light load
management (pulse skipping) help maximize power conversion efficiency across the entire
load range.
The soft-start, current limit threshold and switching frequency are adjustable for
application optimization.
The device includes an internal 250 kHz oscillator that can be externally adjusted up to
1.5 MHz; two L7987L regulators can be synchronized in a 180° out-of-phase configuration
for reduced total input RMS current.
Key Features
- 4.5 V to 60 V input voltage
- Step-down (buck) conversion
- 5 V output voltage (VIN
> 6 V)
- Up to 2 A DC output current
- 500 kHz switching frequency
- 5 ms programmed soft-start
- Compliant with ceramic output capacitors
- 180° out of phase synchronization available
- Auto recovery overcurrent and thermal protection
- RoHS compliant
Product Specifications
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
License Agreement
Sample & Buy
| Part Number | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STEVAL-ISA198V1 | L7987L | 30 | 1 | NEC | EAR99 | ITALY |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STEVAL-ISA198V1 | CARD | Industrial | Ecopack2 | |
