B230A-FDICT-ND AOSMD [Alpha & Omega Semiconductors], B230A-FDICT-ND Datasheet

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B230A-FDICT-ND

Manufacturer Part Number
B230A-FDICT-ND
Description
Manufacturer
AOSMD [Alpha & Omega Semiconductors]
Datasheet
1.B230A-FDICT-ND.pdf (4 pages)
General Description
The AOZ1019 evaluation board is a fully assembled and
tested circuit board built with the AOZ1019 buck regulator
IC. It outputs a preset or adjustable voltage and up to 2A
of continuous current. The evaluation board requires an
input voltage from 4.5V to 16V. The output voltage is
preset and can be adjusted from 0.8V to V
The AOZ1019-EVA circuit features include; current limit,
short circuit protection, input under voltage lock out,
internal soft start and thermal shut down. It operates at a
fixed 500kHz switching frequency. The current mode
control and integrated internal MOSFET minimize
component count, board area and total cost.
The AOZ1019 comes in an SO-8 package and is rated
over a -40°C to +85°C ambient temperature range.
Evaluation Board Schematic
Rev. 1.0 October 2007
From µPC
VIN
C1
22µF
Ceramic
C
R
C
C
C6
1µF
C5
EN
COMP
IN
–0.4V
AGND
AOZ1019
www.aosmd.com
Figure 1.
VIN
PGND
Features
Applications
4.5V to 16V operating input voltage range
Output voltage was preset to 3.3V, adjustable down to
0.8V
2A continuous output current
Fixed 500kHz PWM operation
Internal soft start
Cycle-by-cycle current limit
Short-circuit protection
Thermal shutdown
Point of load DC/DC conversion
PCIe graphics cards
Set top boxes
DVD drives and HDD
LCD panels
Cable modems
Telecom/networking/datacom equipment
FB
LX
L1 4.7µH
AOZ1019-EVA
EZBuck™ 2A Simple Buck Regulator
D1
C4
R1
R2
Evaluation Board Note
VOUT
C2, C3
22µF
Ceramic
+3.3V Output
Page 1 of 4
@2A

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B230A-FDICT-ND Summary of contents

Page 1

General Description The AOZ1019 evaluation board is a fully assembled and tested circuit board built with the AOZ1019 buck regulator IC. It outputs a preset or adjustable voltage and continuous current. The evaluation board requires an ...

Page 2

... 1.2 4.99 1.8 12.7 2.5 21.5 3.3 31.6 5.0 52.3 Rev. 1.0 October 2007 Description GRM32ER61E226KE15L GRM32ER61E226KE15L GRM32ER61E226KE15L GRM188R71E102K GRM188R61E105KA12D GRM188R71E102K CRCW060331K6FKTAP CRCW060321K0FKTAP CRCW060321K0FKTAP LQH55DN3R3M03 B230A-FDICT-ND AOZ1019AI Table 1 shows that the value of R1 with typical output voltages. www.aosmd.com AOZ1019-EVA Manufacturer Part Number Manufacturer Murata DALE Murata DIODES AOS Page ...

Page 3

PCB Layout Rev. 1.0 October 2007 Figure 1. Top Silk Screen Figure 2. Top Layer Figure 3. Bottom Layer www.aosmd.com AOZ1019-EVA Page ...

Page 4

Quick Start Guide 1. Connect the terminals of load Connect the DC power supply Connect EN pin any voltage source which is higher than 2V and less than 16V ...

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