STEVAL-ISA048V2: 9.5V @ 1A, 4 ~ 6V in, Boost
Summary
This demonstration board is based on the ST8R00W family of synchronous step-up DC-DC converters with current output cut-off function that provide up to 1 A over an input voltage range of 4 V to 6 V and an output voltage range of 6 V to 12 V.
The ST8R00W is the continuous mode version, that guarantees the lowest switching ripple when the device is used at light load conditions.
The high switching frequency (1.2 MHz) allows the use of tiny surface-mount components.
Along with 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-mounted ceramic capacitors.
The ST8R00W is the continuous mode version, that guarantees the lowest switching ripple when the device is used at light load conditions.
The high switching frequency (1.2 MHz) allows the use of tiny surface-mount components.
Along with 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-mounted ceramic capacitors.
Specifications
| Manufacturer | STMicroelectronics |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | 497-6377-ND |
| Eval Board Supplier | STMicroelectronics |
| Eval Board |
Board not Stocked
|
| Topology |
Step Up
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
9.5 V
|
| Current Out |
1 A
|
| Voltage In |
4 ~ 6 V
|
| Efficiency @ Conditions |
>88%, 5V in, 8V @ 0.6 ~ 1 A
|
| Voltage Out Range |
6 ~ 12 V
|
| Features |
Light Load Mode
Shutdown, Enable, Standby Thermal Protection |
| Switching Frequency |
1.2 MHz
|
| Standby Current [Typical] |
750 µA
|
| Quiescent Current [Typical] |
10 mA
|
| Component Count + Extras |
6 + 2
|
| Internal Switch |
Yes
|
| Design Author |
STMicroelectronics
|
| Application / Target Market | |
| Standby Current [Maximum] | |
| Quiescent Current [Maximum] | |
| Main I.C. Base Part |
ST8R00W
|
| Date Created By Author | |
| Date Added To Library | 2017-05 |
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