STEVAL-ISA098V1
2 A step-down switching demonstration board based on the L7985A in HSOP8 package-
Active
The STEVAL-ISA098V1 demonstration board is a step-down switching power supply based on the L7985A in HSOP8 package.
The L7985A is a step-down regulator with a 2.5 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 2 A current to the load depending on the application conditions.
The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN.
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.
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Datasheet
Key Features
- 2 A DC output current
- From 4.5 V to 38 V range input voltage
- Output voltage adjustable from 0.6 V
- 250 kHz switching frequency programmable up to 1 MHz
- Internal soft-start and enable
- Low dropout operation: 100% duty cycle
- Voltage feed-forward
- Zero load current operation
- Overcurrent and thermal protection
- RoHS compliant
Image
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DB1621: 2 A step-down switching demonstration board based on the L7985A in HSOP8 package
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1.0 | 286 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
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AN3358: Turbo2 600 V diodes: optimized solutions for PFC and other applications
|
1.0 | 228 KB |
Hardware Resources
Board Manufacturing Specification
| Description | Version | Size |
|---|---|---|
STEVAL-ISA098V1 gerber files
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1.0.0 | 94 KB |
Bill of Materials
| Description | Version | Size |
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STEVAL-ISA098V1 BOM
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1.0.0 | 31 KB |
Schematic Pack
| Description | Version | Size |
|---|---|---|
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STEVAL-ISA098V1 schematics
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1.0.0 | 25 KB |
Sample & Buy
Top| Part Number | Marketing Status | Core Product | Order From ST | Unit Price (US$)* @ | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA098V1 | Active | L7985A | 33.12 |
| Ecopack2 | - | |||||||||||||||||||||
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors (**) 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. |
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