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PDF AX3051A Data sheet ( Hoja de datos )
| Número de pieza | AX3051A | |
| Descripción | Wide-Input Sensorless CC/CV Step-Down DC/DC Converter | |
| Fabricantes | AXElite | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AX3051A (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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AX3051/A
2.8A,Wide-Input Sensorless CC/CV Step-Down
GENERAL DESCRIPTION
DC/DC Converter
AX3051/A is a wide input voltage, high efficiency Active CC step-down DC/DC
converter that operates in either CV (Constant Output Voltage) mode or CC (Constant
Output Current) mode.
AX3051/A consists of step-down switching regulator with PWM control. The device
includes a reference voltage source, oscillation circuit, error amplifier and etc.
AX3051/A provides low-ripple power, high efficiency, and excellent transient
characteristics. The PWM control circuit is able to the duty ratio linearly forms 0 up to 90%.
An over current protection and short circuit protection functions are built outside that it can
set by a resistance. An external compensation is easily to system stable; the low ESR
output capacitor can be used.
With the addition of an internal N-channel Power MOS, a coil, capacitors, and a
diode connected externally, these ICs can function as step-down switching regulators.
They serve as ideal power supply units for portable devices when coupled with the
SOP-8L-EP packages, providing such outstanding features as low current consumption.
Since this converter can accommodate an input voltage up to 36V.
1/14
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.1 Apr.09, 2013
1 page  
AX3051/A
APPLICATION CIRCUIT
AL CAPACITOR
(1) Frequency=100KHz
VIN=8~36V
C1
100μF/35V
R2
8.2KΩ
C2
2.2nF
C8
0.1μF
C3
0.1μF
D1
40V/3A
IN BS
COMP
C7
Option
GND
LX
SENSE1
SENSE2
FB
L1
68μH
C4
470μF
R1
40mΩ
Vout=5V/2.5A
C5
R3 2.2nF
4kΩ
C6
10μF
R4
1KΩ
(2) Frequency=250KHz
VIN=8~36V
C1
100μF/35V
R2
10KΩ
C2
4.7nF
C8
0.1μF
C3
0.1μF
D1
40V/3A
IN BS
COMP
GND
C7
39pF
LX
SENSE1
SENSE2
FB
L1
22μH
C4
47μF
R1
40mΩ
Vout=5V/2.5A
C5
R3 Option
4kΩ
C6
Option
R4
1KΩ
5/14
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.1 Apr.09, 2013
5 Page 
TYPICAL CHARACTERISTICS
AX3051/A
11/14
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.1 Apr.09, 2013
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet AX3051A.PDF ] | |
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