XYSemi

XR3403

1.2 MHz, 26V Step-up DC/DC Converter

Topology: Boost
Input Voltage (min.): 2.30 V
Input Voltage (max.): 6.00 V
Switching Frequency (min.): 900.00 kHz
Switching Frequency (max.): 1500.00 kHz
Output 1: 26.00 V / 3.000 A

Original publication on 2013-08-09, revision 0.6 on

Description

The XR3403 is a high frequency, high efficiency DC to DC converter with an integrated 3A, 0.1Ω power switch capable of providing an output voltage up to 26V. The fixed 1.2MHz allows the use of small external inductions and capacitors and provides fast transient response. It integrates Soft start, Comp,. only need few components outside. It can be adjusted SW current limit by one resistor or analog voltage.

Characteristics

  • 2.3V to 6V input voltage Rangel
  • Efficiency up to 96%
  • 26V Boost converter with adjusted switch current
  • 1.2Mhz fixed Switching Frequency
  • Integrated soft-start
  • Thermal Shutdown
  • Under voltage Lockout
  • SOT23-6 Package

Products

  Order Code SPEC Simu-
lation
Product family L1
(µH)
IR 1
(A)
ISAT 1
(A)
RDC1 typ
(mΩ)
RDC1 max.
(mΩ)
fres 1
(MHz)
L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Version Samples
74437324022 PDF RE WE-LHMI SMD Power Inductor 2.2 3.25 6.5 51 61 49
744777004 PDF RE WE-PD SMT Power Inductor 4.7 3.2 4 25 40 37 Standard