Product overview
Description
The STEVAL-ISA207V1 evaluation board is a step-down switching power supply based on the A7987 regulator in an HTSSOP16 package. It is designed for automotive system battery-powered applications. The output voltage can be set starting from 0.8 V. Almost low drop-out operation, due to the advanced integrated switch management, can be achieved.
The A7987 is a 61 V, 3 A step-down asynchronous switching regulator with embedded high-side power MOSFET is capable of delivering up to 3 A of current, depending on the application conditions.
The embedded switchover feature on the VBIAS pin and the light load management (pulse skipping) are included to maximize power conversion efficiency across the entire load range, and the soft-start current limit threshold and switching frequency can be adjusted according to specific application requirements.
The device includes an internal 250 kHz oscillator that can be set up to 1.5 MHz by changing an on-board resistor. Two A7987 regulators can be synchronized in a 180° out-of-phase configuration for reduced total input RMS current.
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All features
- 4.5 V to 60 V input voltage
- Step-down (buck) conversion
- 3.3 V output voltage
- Up to 3 A DC output current
- 500 kHz switching frequency
- 3.5 ms programmed soft-start
- Compliant with ceramic output capacitors
- 180° out-of-phase synchronization available
- Auto recovery overcurrent and thermal protection
- RoHS and China RoHS compliant
- WEEE compliant (2012/19/UE RAEE II)
Recommended for you
All resources
| Resource title | Version | Latest update |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 12 Apr 2019 | 12 Apr 2019 |
Bill of Materials (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 12 Apr 2019 | 12 Apr 2019 |
Schematic Pack (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 12 Apr 2019 | 12 Apr 2019 |
Quality and Reliability
| Part Number | Marketing Status | RoHS Compliance Grade | WEEE Compliant | Material Declaration** |
|---|---|---|---|---|
| STEVAL-ISA207V1 | Active | Ecopack2 | Yes | |
STEVAL-ISA207V1
Package:
Ecopack2Material 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 | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA207V1 | | | distributors No availability of distributors reported, please contact our sales office |
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STEVAL-ISA207V1 Active
(*) 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