The BD70522GUL-EVK-101 evaluation board is a power supply solution designed for battery powered devices. 180nA quiescent current and ULP (Ultra Low Power) mode enable excellent light load efficiency at 10µA load, extending battery life, while output currents up to 500mA are supported. Users can select from among 9 preset output voltages via the VSEL pin. And when the input voltage gets close to the output voltage, the IC enters 100% ON mode that stops switching operation.
The BD70522GUL is a Buck Converter featuring 180nA quiescent current and supports output current up to 500mA. The Constant ON-Time (COT) control with ULP (Ultra Low Power) mode provides superior transient response and extends battery life by providing excellent light load efficiency below 10µA load range. The output voltage can be selected from 9 pre-set voltages by VSEL pins. When the input voltage gets close to the output voltage, the IC enters 100% ON mode where the switching operation stops.
Manufacturer | Rohm Semiconductor |
---|---|
Category | AC/DC and DC/DC Conversion |
Sub-Category | DC/DC SMPS - Single Output |
Eval Board Part Number | BD70522GUL-EVK-101-ND |
Eval Board Supplier | Rohm Semiconductor |
Eval Board |
Normally In Stock
|
Topology |
Step Down
|
Outputs and Type |
1 Non-Isolated
|
Voltage Out: Factory Set |
1.2 V
1.5 V 1.8 V 2 V 2.5 V 2.8 V 3 V 3.2 V 3.3 V |
Current Out |
500 mA
|
Voltage In |
2.5 ~ 5.5 V
|
Efficiency @ Conditions |
>90%, 5V in, 3.6V @ 0.01 ~ 500 mA
>90%, 3.6V in, 2.5V @ 0.004 ~ 500 mA >90%, 3.6V in, 1.8V @ 0.1 ~ 500 mA >85%, 2.6V in, 1.2V @ 0.008 ~ 400 mA |
Voltage Out Range |
1.2 ~ 3.3 V
|
Features |
Light Load Mode
Power Good Output Shutdown, Enable, Standby |
Switching Frequency |
Up to 1 MHz
|
Standby Current [Typical] |
50 nA
|
Quiescent Current [Typical] |
180 nA
|
Component Count + Extras |
9 + 9
|
Internal Switch |
Yes
|
Design Author |
Rohm
|
Application / Target Market |
Energy Harvesting
Portable Devices RF: Home Automation Wearable Devices |
Standby Current [Maximum] |
1 µA
|
Quiescent Current [Maximum] |
1 µA
|
Main I.C. Base Part |
BD70522GUL
|
Date Created By Author | 2017-11 |
Date Added To Library | 2020-03 |