Altera ER3105DI
ER3105DI is a 500mA Synchronous buck regulator with an input range of 3V to 36V. It provides an easy to use, high efficiency low BOM count solution for a variety of applications. The ER3105DI integrates both high-side and low-side NMOS FET's and features a PFM mode for improved efficiency at light loads.| Part No. | ER3105DI |
|---|---|
| Datasheet | ER3105DI Download |
| Manufacturer |  Altera |
| Description | Synchronous Buck Regulator |
| Buy | Stock & Price |
FEATURES
● Wide input voltage range 3V to 36V● Synchronous Operation for high efficiency
● No compensation required
● Integrated High-side and Low-side NMOS devices
● Selectable PFM or forced PWM mode at light loads
● Internal fixed (500kHz) or adjustable Switching frequency 300kHz to 2MHz
● Continuous output current up to 500mA
● Internal or external Soft-start
● Minimal external components required
● Power-good and enable functions available.
APPLICATIONS
● FPGA power● Digital processor power
● Mixed-signal ASIC power
● Industrial control
● Medical devices
● Portable instrumentation
● Distributed Power supplies
● Cloud Infrastructure C BOOT 100nF VOUT COU T 10µ F L1 2 2µH CVIN 10µ F 1 SS 2 SYN C 3 BOOT 4 PVIN 5 SW 6 PGN D GND FSW 12 11 COM P 10 FB 9 AVIN O POK EN R2 C AVINO 1µ F R3 CFB INTERNAL DEFAULT PARAM ETER SELECTION FIGURE 1. TYPICAL APPLICATION EFFICIENCY (%) 100 95 VIN = 15V VIN = 12V VIN = 5V 90 85 80 75 70 VIN = 24V 65 VIN = 33V 60 55 50 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 OUTPUT LOAD (A) FIGURE 2.
