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This evaluation board, based on the ST1S09 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.
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
- ST1S09 in the DFN6 3x3 package
- Input voltage range: 2.7 V to 5.5 V
- Max Iout: 2 A
- Output voltage: 3.3 V
- Short-circuit protection
- High internal switching frequency: 1.5 MHz
All resources
Product Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Sep 2016 |
19 Sep 2016
|
Board Manufacturing Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| ZIP | 06 Aug 2015 |
06 Aug 2015
|
Bill of Materials (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 06 Aug 2015 |
06 Aug 2015
|
Schematics (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 06 Aug 2015 |
06 Aug 2015
|
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Material Declaration** |
|---|---|---|---|---|---|---|
| STEVAL-ISA045V2 |
Active
|
CARD | Industrial | Ecopack2 | - |
|
STEVAL-ISA045V2
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA045V2 | 1 distributors | Buy Direct | ST1S09PUR |
Active
|
- | EAR99 | NEC | ITALY | - | 46.0 / 1 |
(*) 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
