Automatic buck-boost DC-DC converter 2.5–15 V to 3.3 V, 600 mA, compact module – DFRobot DFR0568

Key features

• Automatic buck-boost function: fixed 3.3 V output whether the input voltage is higher or lower
• Wide 2.5 to 15 V DC input range, ideal for battery power
• Quiescent current of just 150 µA and switching frequency up to 1.2 MHz
• Stable output voltage even in long-term operation
• Tiny surface-mount format with Vi+, Vi-, Vo+ and Vo- pads
• The DM13B and DM14 silkscreen marks are production codes only: both are version V2.0 with no difference in performance
• Notes: do not exceed 15 V input and avoid prolonged loads of 600 mA or more; with high load currents, raise the minimum input voltage

Technical specifications

• Input voltage: 2.5–15 V DC
• Output voltage: 3.3 V ± 0.1 V
• Maximum (peak) output current: 600 mA
• No-load current: 150 µA
• Switching frequency: up to 1.2 MHz
• Isolation: non-isolated
• Shutdown (enable) function: not available
• Mounting: SMD
• Operating temperature: -40 to +85 °C
• Operating humidity: 20–90% RH, non-condensing
• Storage temperature: -10 to +50 °C
• Service life: 50,000 h
• Dimensions: 17 × 13 mm

Typical uses

3.3 V supply for microcontrollers and sensors from batteries, DIY power banks, power for controller boards, LED floodlights, models, communication devices and digital radios.

Package contents

• 1 × 3.3 V buck-boost DC-DC converter module