STEVAL-ISA046V2：2 A / 3.3 V high-efficiency synchronous buck converter evaluation board based on the ST1S09I with inhibit
This evaluation board, based on the ST1S09I family of synchronous step-down DC-DC converters, is optimized for powering all lowvoltage applications and, generally, replaces high current linear solutions when power dissipation may cause high heating of the application environment. It provides up to 2 A over an input voltage range of 2.7 V to 5.5 V.
A high 1.5 MHz switching frequency allows the use of tiny surface-mount components and in addition to the resistor divider to set the output voltage value, an inductor and two capacitors are required.
The ST1S09I features an inhibit function.
A low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR surface-mount ceramic capacitors.
The device is thermally protected and current limited to prevent damage due to accidental shortcircuit.
The ST1S09 family is available in the DFN6 3x3 package.
Key Features
- ST1S09I in the DFN6 3x3 package
- Short-circuit protection
- Input voltage range: 2.7 V to 5.5 V
- Max Iout : 2 A
- Output voltage: 3.3 V
- Inhibit function
- High internal switching frequency: 1.5 MHz
Product Specifications
| Description | Version | Size |
|---|---|---|
| DB0581: 2 A / 3.3 V high-efficiency synchronous buck converter evaluation board based on the ST1S09 with inhibit | 1.3 | 82 KB |
Board Manufacturing Specifications
| Description | Version | Size |
|---|---|---|
| PCB layout | 1.0 | 55 KB |
Bill of Materials
| Description | Version | Size |
|---|---|---|
| Bill of materials | 1.0 | 46 KB |
Schematic Packs
| Description | Version | Size |
|---|---|---|
| Board schematic | 1.0 | 34 KB |
License Agreement
| Description | Version | Size |
|---|---|---|
| Evaluation products license agreement | 1.0 | 125 KB |
Sample & Buy
| Part Number | Core Product | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|
| STEVAL-ISA046V2 | ST1S09IPUR | 46 | 1 | NEC | EAR99 | ITALY |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| STEVAL-ISA046V2 | CARD | Industrial | Ecopack2 |
- 2 A / 3.3 V high-efficiency synchronous buck converter evaluation board based on the ST1S09 with inhibit STEVAL-ISA046V2
- 2 A / 3.3 V high-efficiency synchronous buck converter evaluation board based on the ST1S09 with inhibit STEVAL-ISA046V2
- 2 A / 3.3 V high-efficiency synchronous buck converter evaluation board based on the ST1S09 with inhibit STEVAL-ISA046V2
- 2 A / 3.3 V high-efficiency synchronous buck converter evaluation board based on the ST1S09 with inhibit STEVAL-ISA046V2
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