STEVAL-ISA152V1：3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987
The STEVAL-ISA152V1 product evaluation board is a step-down switching
power supply based on the L7987 regulator in an HTSSOP16 package. The output voltage can be set
starting from 0.8 V. Low drop-out operation, with almost 100% duty cycle, can be
achieved.
The L7987 is a 61 V, 3 A step-down asynchronous switching regulator with
embedded power MOSFET caable of delivering up to 3 A of current, depending on the application
conditions.
The embedded switch-over feature on the VBIAS pin and the light load
management (pulse skipping) are intended to maximize power conversion efficiency across the
entire load range.
The soft-start, current limit threshold and the 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 L7987 regulators can be synchronized in a 180°
out-of-phase configuration for reduced total input RMS current
Key Features
- 3.3 V output voltage
- 3 A DC output current
- 4.5 V to 60 V input voltage
- 500 kHz switching frequency
- 3.5 ms programmed soft-start
- VBIAS switch-over for improved efficiency at light load
- 180° out of phase synchronization available
- Open drain PGOOD available
- Auto recovery overcurrent and thermal protection
- RoHS compliant
产品规格
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
许可协议
样片和购买
| 型号 | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STEVAL-ISA152V1 | L7987 | 79.63 | 1 | NEC | EAR99 | ITALY |
质量和可靠性
| 型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STEVAL-ISA152V1 | CARD | Industrial | Ecopack2 | |
