Boost DC/DC converter BD83070GWL

buckICSMD

Product Overview
The BD83070GWL-E2 is a synchronous buck-boost DC/DC converter designed for ultra-low-power, compact battery-driven applications. Its X Ramp PWM control enables seamless buck-to-boost transitions and the low-current circuitry yields extremely low quiescent consumption (typ. 2.8 µA), with measured conversion efficiency up to 97% at 200 mA. These characteristics extend operating time in small devices and reduce standby power compared with standard solutions.

Features

• Synchronous Buck-Boost DC/DC converter with integrated FET
• Automatic PFM/PWM transition for light-load efficiency
• Output current up to 1 A (VIN > 2.7 V, VOUT = 3.3 V)
• Selectable output voltage: 2.5 V or 3.3 V
• Typical efficiency up to 95% (up to 97% reported at 200 mA under specific conditions)
• UVLO detection: 1.61 V (max)
• Built-in thermal, over-voltage and over-current protection; EN pin provided; no PGOOD

Package / Basic Info
Part number: BD83070GWL-E2
Status: Recommended
Package: UCSP50L1C
Package size: 1.2 × 1.6 mm (t = 0.57 mm)
Packing type: Taping
Unit quantity per reel: 3000
RoHS: Yes | MSL: 1

Key Specifications

• Channels: 1
• Integrated FET / Controller: Integrated FET
• Topology: Buck / Boost (synchronous)
• Vin range: 2.0 V (min) – 5.5 V (max)
• Vout: selectable 2.5 V or 3.3 V
• Iout (max): 1.0 A
• Switch frequency setting (max): 1.65 MHz
• Quiescent current (PFM, no load): typ. 2.8 µA
• Light-load mode: Yes (automatic PFM/PWM)
• EN (enable): Yes | PGOOD: No
• Operating temperature: -40 °C to +85 °C

Evaluation Boards / Reference
BD83070GWL-EVK-002: ultra-compact evaluation board for space-constrained implementations; minimal component count (IC, inductor, capacitors) enabling approximate PCB mounting area of 3.3 mm × 3.9 mm. Target use: wearables, IoT and mobile battery-powered devices.
BD83070GWL-EVK-001: evaluation board demonstrating PFM operation for ultra-low light-load consumption (typ. quiescent 2.8 µA at no load) and PWM operation supporting up to 1 A with high efficiency.

Applications

• Wearable devices and small IoT sensors
• Battery-powered consumer electronics (e.g., electric toothbrushes, shavers)
• Portable and mobile devices requiring compact, high-efficiency power conversion