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GRM32ER61E226KE15L

Part # GRM32ER61E226KE15L
Description CAP,22UF,25V,X5R,10%,SMD,1210,TR - Cut TR (SOS)
Additional Information:


Category CAPACITOR
Availability Out of Stock
Qty 0
Qty Price
1 + $4.48661

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

Rev. 1.0 October 2007
www.aosmd.com
Page 1 of 4
AOZ1019-EVA
EZBuck™ 2A Simple Buck Regulator
Evaluation Board Note
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
IN
–0.4V
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.
Features
●
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
Applications
●
Point of load DC/DC conversion
●
PCIe graphics cards
●
Set top boxes
●
DVD drives and HDD
●
LCD panels
●
Cable modems
●
Telecom/networking/datacom equipment
Evaluation Board Schematic
Figure 1.
LX
VIN
VOUT
+3.3V Output
@2A
VIN
From µPC
FB
PGND
EN
COMP
AGND
C2, C3
22µF
Ceramic
R1
R2
R
C
C
C
D1
C5
C4
L1 4.7µH
AOZ1019
C1
22µF
Ceramic
C6
1µF
AOZ1019-EVA
Rev. 1.0 October 2007
www.aosmd.com
Page 2 of 4
Component List
Note:
1. Output voltage is set by R1; R1 = . Table 1 shows that the value of R1 with typical output voltages.
Table 1.
Ref
Designation Value Description
Manufacturer
Part Number Manufacturer
C1 22µF Ceramic Cap, 22µF, 25V, 1210, X5R GRM32ER61E226KE15L Murata
C2 22µF Ceramic Cap, 22µF, 25V, 1210, X5R GRM32ER61E226KE15L
C3 22µF Ceramic Cap, 22µF, 25V, 1210, X5R GRM32ER61E226KE15L
C4 NU
C5 1000pF Ceramic Cap, 1000pF, 50V, 0603, X7R GRM188R71E102K
C6 1µF Ceramic Cap, 1µF, 25V, 0603, X5R GRM188R61E105KA12D
C
C
1000pF Ceramic Cap, 1000pF, 50V, 0603, X7R GRM188R71E102K
R1
(1)
31.6k
Ω
Thick Film Res, 1%, 31.6k, 0603 CRCW060331K6FKTAP DALE
R2 20k
Ω
Thick Film Res, 1%, 20k, 0603 CRCW060321K0FKTAP
R
C
20k
Ω
Thick Film Res, 1%, 20k, 0603 CRCW060321K0FKTAP
L1 4.7µH Inductor, 4.7µH, 2.9A LQH55DN3R3M03 Murata
D1 Schottky Barrier Diode, 2A, 30V, SMA B230A-FDICT-ND DIODES
U1 AOZ1019AI Buck Regulator IC, 2A, 16V AOZ1019AI AOS
V
O
(V)
R1 (k
Ω
)
1.2 4.99
1.8 12.7
2.5 21.5
3.3 31.6
5.0 52.3
810V
O
×()+
0.8kΩ
-----------------------------------
AOZ1019-EVA
Rev. 1.0 October 2007
www.aosmd.com
Page 3 of 4
PCB Layout
Figure 1. Top Silk Screen
Figure 2. Top Layer
Figure 3. Bottom Layer
12NEXT
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