RP509Z Overview
RP509x Series 0.5A/1A PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier No. EA-362-220819 OUTLINE 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(1). 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...
RP509Z Key Features
- Input Voltage Range (Maximum Rating) ---------------------------- 2.3 V to 5.5 V (6.5 V)
- Output Voltage Range (Fixed Output Voltage Type) ------------- 0.6 V to 3.3 V, settable in 0.1 V steps
- Output Voltage Accuracy (Fixed Output Voltage Type) ---------- ±1.5% (VSET(2) ≥ 1.2 V), ±18 mV (VSET < 1.2 V)
- Feedback Voltage Accuracy (Adjustable Output Voltage Type) ---- ±9 mV (VFB = 0.6 V)
- Output Voltage/Feedback Voltage Temperature Coefficient ---- ±100 ppm/°C
- Selectable Oscillator Frequency -------------------------------------- Typ. 6.0 MHz
- Oscillator Maximum Duty ----------------------------------------------- Min. 100%
- Built-in Driver ON Resistance (VIN = 3.6 V)------------------------- Typ. Pch. 0.175 Ω, Nch. 0.155 Ω (RP509Z)
- Standby Current ----------------------------------------------------------- Typ. 0 µA
- UVLO Detector Threshold ---------------------------------------------- Typ. 2.0 V