Nisshinbo R1272S032A050-0500EV Evaluation Board
Nisshinbo R1272S032A050-0500EV Evaluation Board is used to evaluate the R1272S step-down DC/DC controller. The controller can generate an output voltage of 0.7V to 5.3V by driving external high- and low-side NMOSs. Nisshinbo R1272S can make up a stable DC/DC converter with high efficiency even if adding low Ron MOSFETs and a low DCR inductor externally by adopting a unique current mode PWM architecture without an external current sense resistor.
Features
- 4.0V to 34V (36V) operating voltage (maximum rating)
- -40°C ≤ Ta ≤ 105°C operating temperature range
- 4.5V start-up voltage
- 3.3V output voltage
- 0.64V ± 1% feedback voltage tolerance
- 15µA typical consumption current at No Load (at VFM mode)
- 500kHz adjustable oscillation frequency
- 250kHz to 1MHz synchronizable clock frequency
- ±3.6% typ. spreading rate for SSCG
- 100ns typ. minimum on-time
- 120ns typ. (at regulation mode) at dropout, actual minimum off-time is reduced minimum off-time
- 500µs typ. adjustable soft-start time
- Pre-bias start-up
- Anti-phase clock output
- Tj = +160°C (typ.) thermal shutdown function
- 3.3V typ. under-voltage lockout (UVLO) function
- FB pin voltage (VFB) + 10% (typ.) over voltage detection (OVD) function
- FB pin voltage (VFB) x 3% (typ.) detection/release hysteresis
- FB pin voltage (VFB) - 10% (typ.) under voltage detection (UVD) Function
- FB pin voltage (VFB) x 3% (typ.) detection/release hysteresis
- Hiccup-mode / Latch mode over-current protection
- 70mV selectable current limit threshold
- NMOS open-drain output Power Good Output
- HSOP-18 package
Related Products
Nisshinbo R1272S Synchronous Step-down DC / DC Controllers
Generates an output voltage of 0.7V to 5.3V by driving external high- / low-side NMOSs.
Nisshinbo R1272S032A033-0500EV Evaluation Board
Used to evaluate the R1272S step-down DC/DC controller.
Published: 2020-10-28
| Updated: 2024-05-02