Richtek

RT2825

4.5V to 18V, 5A/5A Dual Synchronous Step-Down Converter

Topology: Buck
Input Voltage (min.): 4.50 V
Input Voltage (max.): 18.00 V
Switching Frequency (min.): 200.00 kHz
Switching Frequency (max.): 1000.00 kHz
Output 1: 1.80 V / 5.000 A
Output 2: 1.20 V / 5.000 A

Original publication on 2017-06-29, revision Datasheet

Description

4.5V to 18V, 5A/5A Dual Synchronous Step-Down ConverterThe RT2825 features two synchronous wide input rangehigh efficiency buck converters that cab deliver up to 5A/5A output current from a 4.5V to 18V input supply. Theconverters are designed to simplify its application whilegiving the designer the option to optimize their usageaccording to the target application.DS2825-00 May 2017

Characteristics

  •  Wide Input Supply Voltage Range : 4.5V to 18V Fully Integrated Dual-Buck, Up to 5A/5A Adjustable Switching Frequency 200kHz to 1MHzSet by External Resistor or SYNC Signal Dedicated Enable/Soft-Start for Each Buck Current Mode Control with Simple CompensationCircuit Adjustable Cycle-by-Cycle Current Limit Set byExternal Resistor Over-Temperature Protection Power Good Indicator Discontinuous Operating Mode at Light Load whenLOWP = L 1% VREF Accuracy RoHS Compliant and Halogen Free

Products

  Order Code SPEC Product series L
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Material Version Samples
7443551200 PDF WE-HCI SMT Flat Wire High Current Inductor 2 23 1.4 22 2.6 45 WE-PERM SMT
7443551280 PDF WE-HCI SMT Flat Wire High Current Inductor 2.8 20 1.85 17.5 3.3 35 WE-PERM SMT
7443551130 PDF WE-HCI SMT Flat Wire High Current Inductor 1.3 25 0.9 25 1.8 59 WE-PERM SMT
7443551370 PDF WE-HCI SMT Flat Wire High Current Inductor 3.7 17 2.6 16 4.9 26 WE-PERM SMT
7443551470 PDF WE-HCI SMT Flat Wire High Current Inductor 4.7 13 3.4 15 7 30 WE-PERM SMT
744325330 PDF WE-HCI SMT Flat Wire High Current Inductor 3.3 12 2.4 15 5.9 54 Superflux SMT
744325240 PDF WE-HCI SMT Flat Wire High Current Inductor 2.4 14 1.8 17 4.75 67 Superflux SMT
744325420 PDF WE-HCI SMT Flat Wire High Current Inductor 4.2 11 3.3 14 7.1 33 Superflux SMT
744325120 PDF WE-HCI SMT Flat Wire High Current Inductor 1.2 20 1 25 1.8 75 Superflux SMT
744325180 PDF WE-HCI SMT Flat Wire High Current Inductor 1.8 16 1.4 18 3.5 70 Superflux SMT