• Alternate parts in the family(Compare): RP509
  • Moisture sensitivity level: 1
  • RoHS 3(EU 2015/863)
  • Pack sizes & weights (for bulk orders)
    REEL 5000
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RP509N001D-TR-FE DC/DC converter with Synchronous Rectifier

Sku:

RP509N001D-TR-FE

Features
0.5A/1A Step-down DC/DC Converter

The RP509x is a low supply current PWM/VFM step-down DC/DC converter with synchronous rectifier featuring 0.5 A/1 A output current. Internally, a single converter consists of a reference voltage unit, an error amplifier, a switching control circuit, a mode control circuit, a soft-start circuit, an undervoltage lockout (UVLO) circuit, a thermal shutdown circuit, and switching transistors. The RP509x employs synchronous rectification to improve rectification efficiency by replacing diodes with built-in switching transistors. Using synchronous rectification not only increases circuit performance but also allows an engineer to reduce the part count in their design.

Output voltage control is selectable between PWM/VFM auto-switching and forced PWM control. The second further reduces noise compared to normal PWM control under a light load. The output voltage type is selectable between an internally fixed and an externally adjustable output voltage . The RP509x contains both current limit and thermal shutdown protection circuits where the LX current limit value (Typ.) is selectable between 1.6 A and 1.0 A.  The RP509Z is available in both WLCSP-6-P6 and SOT-23-6.

Technical Specification
Supply Voltage (min) 2.3V
Supply Voltage (max) 6.5V
Frequency (max) 7.2MHz
Quiescent Current -
Voltage Reference Tolerance 1.5%
Drive Type Internal transistor

Applications

US/Canadian Customers

Orders below $110.00 can be delivered by Airmail at a rate of $9.00 (allow up to 10 working days) or by tracked courier at a rate of $30.00 (1-3 working days).

Orders above $110.00 are delivered by a tracked courier at a rate of $30.00 (1-3 working days).

 

Rest of World

Orders below $120.00 can be delivered by post (allowing up to 28 working days) at a rate of $18.00 or by a tracked courier at a rate of $49.00.

Orders above $120.00 are delivered by tracked courier at a rate of $49.00.

 

All prices shown exclude VAT.

 

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