Product overview
Description
The EVAL5986/A demonstration board provides the design engineer with a fully functional stepdown switching regulator with an output current of up to 2.5 A. The board integrates STMicroelectronics L5986\\A step-down switching regulator, together with all the external components required for a typical application. The rated voltage of the input capacitor and the Schottky diode rectifier repetitive peak reverse voltage are both 25 V, making the board capable of covering the entire 2.9 V - 18 V input voltage range of the L5986/A device.The board features an external resistor divider (R1 and R2) designed for an output voltage of 1.8 V.
The output voltage can be set to a level from 0.6 V up to the input voltage.
The compensation network on the demonstration board allows the use of MLCC as output filter to keep the loop stable. The inductor saturation current and forward current of the Schottky diode are within the current limit values.
The switching frequency on the demonstration board is set to 500 kHz by means of the R5 resistor connected to pin Fsw.
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All features
- Zero-load current operation
- Low dropout operation: 100% duty cycle
- VFQFPN8 3 mm x 3 mm package or HSOP8 for the L5986A
- 2.5 A DC output current
- Output voltage adjustable from 0.6 V to 16 V
- 2.9 V to 18 V input voltage
- Internal soft-start and inhibit
- Overcurrent and thermal protection
- 250 kHz switching frequency, programmable up to 1 MHz
All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.1 | 19 Sep 2016 | 19 Sep 2016 |
Evaluation Board Terms of Use (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.7 | 28 Apr 2021 | 28 Apr 2021 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Material Declaration** |
|---|---|---|---|---|---|---|
| EVAL5986A | Active | CARD | Industrial | Not compliant | - | |
EVAL5986A
Package:
CARDMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Core Product | Marketing Status | Supplier | ECCN (US) | ECCN (EU) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EVAL5986A | No availability of distributors reported, please contact our sales office | Buy Direct | L5986A | Active | - | EAR99 | NEC | ITALY | - |
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
