XYSemi

XR3402

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 2012-10-25, revision 0.4 on

Description

The XR3402 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.

Characteristics

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

Products

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