REF69003 - Reference Design
BD83070GWL Ultra-Compact Buck-Boost DC-DC Converter IC Reference Board
The BD83070GWL is a buck-boost DC-DC converter IC designed for battery-powered compact electronic devices, achieving up to 97% efficiency and an ultra-low quiescent current of 2.8µA. The BD83070GWL-EVK-002 is a reference design board for evaluating the BD83070GWL in a compact mounting configuration. It consists of only five components, including the IC, inductor, and capacitors, enabling an ultra-compact 3.3mm × 3.9mm mounting area. This board is suitable for evaluating power supply designs in space-constrained, low-power applications such as wearable devices, IoT devices, and mobile equipment. It also supports PFM/PWM control via the MODE pin and two preset output voltage selections via the VSEL pin, allowing flexible evaluation under different operating conditions.
Design Resources
Specifications
| Board Number | PFM/PWM | Input Voltage Range | Output Current | Selectable Output Voltage | Efficiency | Switching Frequency | Quiescent VIN Current | Package | UVLO Detection | Protection Circuits | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BD83070GWL-EVK-002 | Automatic PFM/PWM Mode Switching and Fixed PWM Mode | 2.0V to 5.5V | Up to 1A（VIN > 2.7V, VOUT = 3.3V） | 2.5V or 3.3V | Up to 95% | 1.5MHz（Typ） | 2.8μA（Typ） | UCSP50L1C（1.20mm × 1.60mm × 0.57mm） | 1.61V（Max） | Built-in TSD and OVP, OCP |
Distribution Inventory
| Board Number | Distributor | Quantity Available |
|---|---|---|
| BD83070GWL-EVK-002 | CoreStaff Co., Ltd. | 2 |
Key Components
| Board Number | Product Category | Part Number | Datasheet | Status | SPICE | LTspice® ? | Thermal Model | Symbol & Footprint | 3D STEP | Samacsys ECAD Library | Calc Tool | ROHM Solution Simulator |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BD83070GWL-EVK-002 | DC-DC Converter ICs | BD83070GWL | - | Recommended | - |