BD9G101G-EVK-101: 5V @ 500mA, 6 ~ 42V in
Summary
The BD9G101G-EVK-101-ND evaluation board has been specifically developed to evaluate the BD9G101G non-synchronous buck DC/DC converter with integrated 45V/800mΩ power MOSFET. Features include wide input (6V to 42V) and output (1V to VCC x 0.7V) voltage ranges and a switching frequency of 1.5MHz. Multiple protection functions are also built in, including a soft start circuit that prevents inrush current during startup, UVLO (Under Voltage Lock Out), TSD (Thermal Shutdown), and OCP (Overcurrent Protection). An EN pin allows for simple ON/OFF control to reduce standby current consumption.
The BD9G101G is high voltage input 42V step-down switching regulator with integrated internal Power MOSFET. It provides maximum 0.5A output with small SSOP6 package. It is allowing the use of small inductor by high frequency operation of 1.5MHz. Also, it is implemented to downsize by incorporation of phase compensation parts with current mode.
Specifications
| Manufacturer | Rohm Semiconductor |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | BD9G101G-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 |
5 V
|
| Current Out |
500 mA
|
| Voltage In |
6 ~ 42 V
|
| Efficiency @ Conditions |
>80%, 8V in, 5V @ 20 ~ 500 mA
>80%, 12V in, 5V @ 50 ~ 500 mA >70%, 42V in, 5V @ 80 ~ 500 mA >70%, 24V in, 5V @ 45 ~ 500 mA |
| Voltage Out Range |
1 ~ Vin x 0.7
|
| Features |
Current Limit (Adj. or Fixed)
Over Current Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
1.5 MHz
|
| Standby Current [Typical] |
0 µA
|
| Quiescent Current [Typical] |
700 µA
|
| Component Count + Extras |
9 + 1
|
| Internal Switch |
Yes
|
| Design Author |
Rohm
|
| Application / Target Market |
Distributed Power Systems
Power: Auxiliary Power Supply Power: Industrial Power |
| Standby Current [Maximum] |
5 µA
|
| Quiescent Current [Maximum] |
1.2 mA
|
| Main I.C. Base Part |
BD9G101G
|
| Date Created By Author | 2013-06 |
| Date Added To Library | 2014-10 |
