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PDF AX3833 Data sheet ( Hoja de datos )
| Número de pieza | AX3833 | |
| Descripción | Synchronous Step Down Regulator | |
| Fabricantes | AXElite | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AX3833 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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AX3833
High Efficiency, 500KHz, 2.6A, 18V Input
Synchronous Step Down Regulator
GENERAL DESCRIPTION
The AX3833 is a high efficiency 500 kHz synchronous step-down DC-DC converter
capable of delivering 2.6A current. The AX3833 operates over a wide input voltage range
from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to
minimize the conduction loss.
Low output voltage ripple and small external inductor and capacitor sizes are achieved
with 500 kHz switching frequency. It adopts the instant PWM architecture to achieve fast
transient responses for high step down applications.
FEATURES
- Low RDS(ON) for internal switches (top/bottom): 80mΩ/40mΩ
- 4.5-18V input voltage range
- 2.6A output current capability
- 500 kHz switching frequency
- Instant PWM architecture to achieve fast transient responses.
- Cycle-by-cycle peak current limitation
- Internal softstart limits the inrush current
- ±1.5% 0.6V reference
- TSOT-23-6L package
Applications
- Set Top Box
- Portable TV
- Access Point Router
- DSL Modem
- LCD TV
1/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Oct.14, 2013
1 page  
AX3833
APPLICATION CIRCUIT
C1
VIN
CIN
ON/
OFF
BS
IN LX
AX3833
EN FB
GND
L1 VOUT
R1 C4 COUT
R2
Figure 1. Schematic Diagram
Efficiency vs. Load Current
100
96
92
88
84
80
0.01
VIN=5V,VOUT=3.3V
VIN=12V,VOUT=3.3V
VIN=16V,VOUT=3.3V
0.10 1.00
Load Current (A)
10.00
Figure 2. Efficiency Figure
5/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Oct.14, 2013
5 Page 
PACKAGE OUTLINES
1.90
AX3833
2.80 - 3.10
0.95 0.60
Recommended Pad Layout
0.3 - 0.6
1.00 (max)
0.30 - 0.50
0.95 TYP
1.90 TYP
Notes:
All dimension in MM
All dimension don’t not include mold flash and metal burr
11/11
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Oct.14, 2013
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AX3833.PDF ] | |
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