RP506K series 2A PWM/VFM step-down DC/DC converter with synchronous rectifier. RP506K can be selected from two control types by input signal to the MODE pin - forced PWM control or PWM/VFM auto switching control in which mode automatically switches to high-efficiency VFM mode in low output current. The xx1A/B/D/E version with an internally fixed output voltage type and the 001C/F version with an externally adjustable output voltage type are available. RP506K includes a soft start circuit, an under-voltage lockout circuit (UVLO), thermal shutdown circuit and a latch protection circuit. By simply using an inductor, (resistors) and capacitors as external components, a high-efficiency step-down DC/DC converter can be easily configured. The oscillator frequency can be selected from 1.2MHz or 2.25MHz.The soft start time is Typ. 0.15ms, and by connecting an external capacitor to TSS pin, soft start time is adjustable. VOUT/VFB pin voltage is monitored, and the output voltage errors can be output from PG pin. The PG pin is N-channel open drain output type. The DFN(PLP)2527-10 package is available.
The RP506K Series consists of low supply current CMOS-based PWM/VFM step-down DC/DC converters featuring a synchronous rectifier. Users can select between forced PWM control and PWM/VFM auto switching control via the MODE pin, allowing the device to automatically switch to high-efficiency VFM mode at low output currents. The series includes xx1A/B/D/E versions with internally fixed output voltages and 001G/F versions with externally adjustable output voltages.
Key features include a soft start circuit, under-voltage lockout (UVLO), thermal shutdown, and latch protection. The oscillator frequency is selectable between 1.2MHz and 2.25MHz depending on the version. The device is available in a DFN(PLP)2527-10 package and is RoHS compliant.
| Output Current | 2A |
|---|---|
| Output Voltage Range (Fixed) | 0.8V to 3.3V |
| Output Voltage Range (Adjustable) | 0.6V to 3.3V |
| Oscillator Frequency | 1.2MHz or 2.25MHz |
| Package | DFN(PLP)2527-10 |
| Coil-current Limit | Typ. 2.8A |
| Thermal Shutdown | Stops at 150°C |
The RP506K can be selected from two control types by input signal to the MODE pin: forced PWM control or PWM/VFM auto switching control.
The 001G/F versions have an externally adjustable output voltage type.
The typical soft start time is 0.15ms, which can be adjusted by connecting an external capacitor to the TSS pin.
Yes, all products shipped from April 1, 2006, comply with the RoHS Directive.