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PDF AX3112 Data sheet ( Hoja de datos )
| Número de pieza | AX3112 | |
| Descripción | PWM Control 3A Step-Down Converter | |
| Fabricantes | AXE | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AX3112 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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AX3112
PWM Control 3A Step-Down Converter
GENERAL DESCRIPTION
AX3112 consists of step-down switching regulator with PWM control. The device
includes a reference voltage source, oscillation circuit, error amplifier, internal PMOS and
etc.
AX3112 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 100%.
With the addition of an internal P-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
package, providing such outstanding features as low current consumption. Since this
converter can accommodate an input voltage up to 40V, it is also suitable for the operation
via an AC adapter.
FEATURES
www.DataSheet.net/
- Input voltage：8V to 40V
- Adjustable version output voltage range from 3.3V to 38V
- Duty ratio：0% to 100% PWM control
- Oscillation frequency：100K/350 KHz
- Enable and auto restart function.
- Thermal Shutdown function / Internal OVP.
- Short Circuit Protect (SCP).
- Built-in internal SW P-channel MOS.
- SOP-8L-EP Pb-Free package.
1/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.3 May.23, 2011
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
AX3112
APPLICATION CIRCUIT
(1) AL CAPACITOR
VCC=10~36V
C3 C4 C5
U1
470u 0.1u 0.1u
4 VCC
SW 5
36
VGATE SENSE1
2 VSS
SENSE2 7
1
EN/CT
8
FB
C9
AX3112 / A
0.1u
L1
D1
B340A
C1 10N
R-sense 50mR
C7
470u
C8
0.1u
VOUT=5.0V/2.05A
R3
C2
39K
Option
R4
11K
VOUT
= 1.1V × (1+
R3
R4 )
L1 recommend value (VIN=10~36V ,VOUT=5V)
Version
AX3112
AX3112A
L1 Value (H)
66u
22u
(2) MLCC
VCC=10~36V
C3 C4 C5
U1
22u 0.1u 0.1u
4
VCC
5
SW
3 VGATE SENSE1 6
2 VSS
SENSE2 7
1 EN/CT
FB 8
C9
AX3112A
0.1u
www.DataSheet.net/
L1
D1
22uH
B340A
R1 470R/Option C1 10N
R-sense 50mR
C6 C7 C8
22u 22u 0.1u
VOUT=5.0V/2.05A
R3
C2
39K
Option
R4
11K
5/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.3 May.23, 2011
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
AX3112
PACKAGE OUTLINES
X
Expose Pad
b
D
7 (4X)
L
DETAIL A
θ
e
y
Symbol
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Dimensions in Millimeters
Min. Nom. Max.
A - - 1.75
A1 0
- 0.15
A2 1.25
-
-
C 0.1 0.2 0.25
D 4.7 4.9 5.1
E 3.7 3.9 4.1
H 5.8 6 6.2
L 0.4 - 1.27
b 0.31 0.41 0.51
e 1.27 BSC
y - - 0.1
X - 2.34 -
Y - 2.34 -
θ 0O - 8O
Mold flash shall not exceed 0.25mm per side
JEDEC outline: MS-012 BA
DETAIL A
Dimensions in Inches
Min. Nom. Max.
- - 0.069
0 - 0.06
0.049
-
-
0.0075
0.008
0.01
0.185
0.193
0.2
0.146
0.154
0.161
0.228
0.236
0.244
0.015
-
0.05
0.012
0.016
0.02
0.050 BSC
- - 0.004
- 0.092 -
- 0.092 -
0O - 8O
11/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.3 May.23, 2011
Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AX3112.PDF ] | |
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