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Microchip LX7104 | Demoboard LX7104

LX7104 1.4MHz 1.5A Asynchronous Buck Converter

Overview

TopologyBuck Converter
Input voltage4.5-18 V
Output 115 V / 1.5 A
IC revision1.0

Description

The LX7104 is a 1.4MHz fixed frequency, current mode, PWM buck (step-down) DC-DC converter, capable of driving a 1.5A load with high efficiency, excellent line and load regulation. The device integrates a N-channel power MOSFET switch with low on-resistance. The converter accepts a wide input voltage range from 4.5V to 18V, and provides an output voltage adjustable typically from 0.81 to 15V.Soft-start is built in, and current mode control provides fast transient response and cycle-by-cycle current limit. Short circuit protection will be triggered when current is over limit and FB is below 0.25V.The LX7104ISF is available in SOT23-6 package.

Features

  • Input Supply Range: 4.5V to 18V
  • Output Voltage Adjustable from 0.81V to 15V
  • Integrated High-Side NMOS Switch
  • Current Mode Control
  • Output Current: 1.5A
  • Fixed 1.4MHz Frequency
  • High Efficiency: Up To 92%
  • Built-in Soft-start
  • Built-in OV, UV & OT Protection
  • Cycle-by-cycle Over Current Protection
  • Short Circuit Protection
  • RoHS Compliant & Halogen Free

Typical applications

  • LCD TV’s / Monitor/DPF
  • Portable DVD

Products

Order Code Data­sheet Simu­lation Downloads Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureQDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingL
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
fres
(MHz)
VOP
(V)
Mount Samples
885012007009SPEC
8 files WCAP-CSGP MLCCs 10 V(DC)10 nF ±5% 10 0805 -55 °C up to +125 °C 100010 GΩ NP0 Class I 2 1.25 1.25 0.5 7" Tape & Reel
885012207016SPEC
8 files WCAP-CSGP MLCCs 10 V(DC)100 nF ±10% 10 0805 -55 °C up to +125 °C 55 GΩ X7R Class II 2 1.25 0.8 0.5 7" Tape & Reel
885012208069SPEC
8 files WCAP-CSGP MLCCs 25 V(DC)10 µF ±10% 25 1206 -55 °C up to +125 °C 100.01 GΩ X7R Class II 3.2 1.6 1.6 0.5 7" Tape & Reel
885012107005SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

8 files WCAP-CSGP MLCCs 6.3 V(DC)22 µF ±20% 6.3 0805 -55 °C up to +85 °C 100.005 GΩ X5R Class II 2 1.25 1.25 0.5 7" Tape & Reel
74438357047SPEC
9 files WE-MAPI SMT Power Inductor 4030 -40 °C up to +125 °C 4.3 4.3 3.1 4.7 5.1 8.2 39.9 24 80 SMT
Order Code Data­sheet Simu­lation
885012007009SPEC
885012207016SPEC
885012208069SPEC
885012107005SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

74438357047SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureQDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingL
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
fres
(MHz)
VOP
(V)
Mount Samples