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Step-Down Converter. MXT2482SXA Datasheet

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Step-Down Converter. MXT2482SXA Datasheet






MXT2482SXA Converter. Datasheet pdf. Equivalent




MXT2482SXA Converter. Datasheet pdf. Equivalent





Part

MXT2482SXA

Description

450 kHz Synchronous Rectified Step-Down Converter



Feature


2-2.5A, 23V, 450 kHz Synchronous Rectifi ed Step-Down Converter MXT2482SX/A DE SCRIPTION The MXT2482SX is amonolithic synchronous buck regulator. The device integrates 150mΩ MOSFETS that provide 2A continuous load current over a wide operating input voltage of 4.5 to 23V. Current mode control provides fast tra nsient response and cycle-by-cycle curr ent limit. An adjust.
Manufacture

ETC

Datasheet
Download MXT2482SXA Datasheet


ETC MXT2482SXA

MXT2482SXA; able soft-start prevents inrush current at turn-on. In shutdown mode, the suppl y current drops below 1µA. This device , available in an 8-pin SOIC package, p rovides a very compact system solution with minimal reliance on external compo nents. PACKAGE REFERENCE FEATURES . . . . . . . . . . . • 2-2.5A Output Cur rent • Wide 4.5-23V Operating Input R ange • Integrated 150mΩ.


ETC MXT2482SXA

Power MOSFET Switches • Output Adjust able from from 0.925 to 20V • Up to 9 5% Efficiency • Programmable Soft-Sta rt • Stable with Low ESR Ceramic Outp ut Capacitors • Fixed 450KHz Frequenc y • Cycle-by-Cycle Over Current Prote ction • Input Under Voltage Lockout Thermally Enhanced 8-Pin SOIC/SOIC-E Package APPLICATIONS . . . . . • Di stributed Power Systems • Networking.


ETC MXT2482SXA

Systems • FPGA, DSP, ASIC Power Suppl ies • Green Electronics/ Appliances Notebook Computers 1/1 Free Datash eet http://www.datasheet4u.com/ 2-2.5A , 23V, 450 kHz Synchronous Rectified St ep-Down Converter MXT2482SX/A MXT2482 SX MXT2482SX MXT2482SX MXT2482SX MXT2 482SX MXT2482SX MXT2482SX MXT2482SXA ABSOLUTE MAXIMUM RATINGS (1) Supply V oltage (VIN).............

Part

MXT2482SXA

Description

450 kHz Synchronous Rectified Step-Down Converter



Feature


2-2.5A, 23V, 450 kHz Synchronous Rectifi ed Step-Down Converter MXT2482SX/A DE SCRIPTION The MXT2482SX is amonolithic synchronous buck regulator. The device integrates 150mΩ MOSFETS that provide 2A continuous load current over a wide operating input voltage of 4.5 to 23V. Current mode control provides fast tra nsient response and cycle-by-cycle curr ent limit. An adjust.
Manufacture

ETC

Datasheet
Download MXT2482SXA Datasheet




 MXT2482SXA
MXT2482SX/A
2-2.5A, 23V, 450 kHz Synchronous Rectified Step-Down Converter
DESCRIPTION
The MXT2482SX is amonolithic synchronous buck regulator. The device integrates 150m
MOSFETS that provide 2A continuous load current over a wide operating input voltage of
4.5 to 23V. Current mode control provides fast transient response and cycle-by-cycle
current limit.
An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply
current drops below 1µA.
This device, available in an 8-pin SOIC package, provides a very compact system solution
with minimal reliance on external components.
PACKAGE REFERENCE FEATURES
. • 2-2.5A Output Current
. • Wide 4.5-23V Operating Input Range
. • Integrated 150mPower MOSFET Switches
. • Output Adjustable from from 0.925 to 20V
. • Up to 95% Efficiency
. • Programmable Soft-Start
. • Stable with Low ESR Ceramic Output Capacitors
. • Fixed 450KHz Frequency
. • Cycle-by-Cycle Over Current Protection
. • Input Under Voltage Lockout
. • Thermally Enhanced 8-Pin SOIC/SOIC-E Package
APPLICATIONS
. • Distributed Power Systems
. • Networking Systems
. • FPGA, DSP, ASIC Power Supplies
. • Green Electronics/ Appliances
. • Notebook Computers
1/1
Free Datasheet http://www.datasheet4u.com/




 MXT2482SXA
MXT2482SX/A
2-2.5A, 23V, 450 kHz Synchronous Rectified Step-Down Converter
MXT2482SX
MXT2482SX
MXT2482SX
MXT2482SX
MXT2482SXA
MXT2482SX
MXT2482SX
MXT2482SX
(1)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VIN).......................-0.3V to 26V
Switch Voltage (VSW)............. –1V to VIN + 0.3V
Bootstrap Voltage (VBS) ...Vsw-0.3V to VSW + 6V
Enable/UVLO Voltage (VEN)...........–0.3V to +6V
Comp Voltage (VCOMP) ...................–0.3V to +6V
Feedback Voltage (VFB) ................–0.3V to +6V
Junction Temperature ........................... +150°C
Lead Temperature ................................. +260°C
Storage Temperature.............. –55°C to +150°C
MXT2482SX
(2)
Recommended Operating Conditions
Input Voltage (VIN) ......................... 4.5V to 23V
Output Voltage (VSW) ....................... 0.925 to 20V
Operating Temperature...............–20°C to +85°C
Thermal Resistance(3) θJA θJC
SOIC8N(4) .............................. 50...... 10... °C/W
Notes:
1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its
operating conditions. 3) Measured on approximately 1” square of 1 oz copper. 4) Measured only with solder exposed pad to
board
2/2
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 MXT2482SXA
MXT2482SX/A
2-2.5A, 23V, 450 kHz Synchronous Rectified Step-Down Converter
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameter
Shutdown Supply Current
Supply Current
Feedback Voltage
Feedback Overvoltage Threshold
Error Amplifier Voltage
Error Amplifier Transconductance
High-Side Switch-On Resistance
Low-Side Switch-On Resistance
High-Side Switch Leakage
Upper Switch Current Limit
Lower Switch Current Limit
COMP to Current Sense
Transconductance
Oscillator Frequency
Short Circuit Frequency
Maximum Duty Cycle
Minimum On Time
EN Shutdown Threshold Voltage
EN Shutdown Threshold Voltage
Hysterisis
EN Lockout Threshold Voltage
EN Lockout Hysterisis
Input UVLO Threshold Rising
Input UVLO Threshold Hysteresis
Soft-start Current
Soft-start Period
Thermal Shutdown4
Note:
4) Guaranteed by design
Condition
VEN 0.3V
VEN 2.6V, VFB = 1.0V
4.5V VIN 23V
Min
900
IC = 10µA
VEN = 0V, VSW = 0V
2.4
VFB = 0V
VFB = 0.8V
VEN Rising
VIN Rising
VSS = 0V
CSS = 0.1µF
400
1.1
2.2
3.80
Typ
0.3
1.3
925
1.1
480
800
150(4)
150(4)
0.1
3.7
0.9
4.0
450
160
90
120
1.5
140(4)
2.5
140(4)
4.10
210
6.0
15
160
Max
3.0
1.5
950
10
500
2.0
2.7
4.40
Units
µA
mA
mV
V
V/V
µA/V
m
m
µA
A
A
А/V
KHz
KHz
%
nS
V
mV
V
mV
V
mV
µA
ms
C
3/3
Free Datasheet http://www.datasheet4u.com/






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