Richtek

RT2862
Demoboard RT2862GSP

RT2862 Step-Down Converter Evaluation Board

Topology: Buck
Input Voltage (min.): 4.50 V
Input Voltage (max.): 36.00 V
Switching Frequency (min.): 300.00 kHz
Switching Frequency (max.): 1000.00 kHz
Output 1: 3.30 V / 3.000 A

Description

The RT2862 is a high efficiency, current mode synchronous step-down DC/DC converter that can deliver up to 3Aoutput current over a wide input voltage range from 4.5V to 36V. The device integrates a 105mΩ high side and an80mΩ low side MOSFET to achieve high conversion efficiency up to 95%. The current mode control architecturesupports fast transient response and uses a simple compensation circuit.A cycle-by-cycle current limit function provides protection against a shorted output and an internal soft-starteliminates input surge current during start-up. The RT2862 provides complete protection functions such as inputunder voltage lockout, output under voltage protection, over current protection and thermal shutdown.The RT2862 is available in the thermal enhanced SOP-8 (Exposed Pad) package.

Characteristics

  • 4.5V to 36V Input Voltage Range
  • 3A Output Current
  • Internal N-MOSFETs
  • Current Mode Control
  • Frequency Operation : 300kHz to 1MHz
  • Adjustable Output Voltage from 0.8V to 30V
  • High Efficiency Up to 95%
  • Stable with Low ESR Ceramic Output Capacitors
  • Cycle-by-Cycle Current Limit

Products

  Order Code SPEC Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Bauform Version Samples
7447714047 PDF WE-PD SMT Power Inductor 4.7 7 8 10.4 12.4 34 1050 Performance