MPS EV3209DJ-00A Manuale utente

EV3209DJ-00A

1.3MHz 350mA

Boost Converter Evaluation Board

EV3209DJ-00A Rev. 1.3 www.MonolithicPower.com 1

12/25/2013 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

The Future of Analog IC Technology

GENERAL DESCRIPTION

The EV3209DJ-00A is the evaluation board for

the MP3209. The MP3209 is a current mode

step up converter intended for small, low power

applications. The MP3209 switches at 1.3MHz

and allows the use of tiny, low cost capacitors

and inductors to achieve a solution less than

1mm in height. Internal soft start results in small

inrush current and extends battery life.

The MP3209 includes under-voltage lockout,

current limiting, and thermal overload protection

to prevent damage in the event of an output

overload. The MP3209 is available in small

5-pin TSOT23 and 2mm x 2mm ultra-thin QFN

8-pin packages.

ELECTRICAL SPECIFICATION

Parameter Symbol Value Units

Input Voltage VIN 2.5 to 6 V

Output Voltage VOUT 15 V

FEATURES

•2.5V to 6V Input Voltage Range

•On Board Power MOSFET

•Uses Tiny Capacitors and Inductors

•1.3MHz Fixed Switching Frequency

•Internally Compensated

•Internal Soft-Start

•Operates with Input Voltage as Low as 2.5V

and Output Voltage as High as 22V

•UVLO, Thermal Shutdown

•Internal Current Limit

•Available in TSOT23-5 and Ultra-Thin 2x2

QFN Packages

APPLICATIONS

•Cell Phones

•External Modems

•Small LCD Displays

•OLED Drivers

“MPS” and “The Future of Analog IC Technology” are Registered

Trademarks of Monolithic Power Systems, Inc.

EV3209DJ-00A EVALUATION BOARD

Dimensions (1.6" by 1.8"”X x 1.8”Y x 0.4”Z)

Board Number MPS IC Number

EV3209DJ-00A MP3209DJ

EFFICIENCY (%)

10 20 30 40 50 60

LOAD CURRENT (mA)

Efficiency vs

Load Current

=4v

OUT

=15v

EV3209DJ-00A – 1.3MHz 350MA BOOST CONVERTER

EV3209DJ-00A Rev. 1.3 www.MonolithicPower.com 2

12/25/2013 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

EVALUATION BOARD SCHEMATIC

VOUT

B0530W

MP3209

SWIN

FBGND

VIN

GND

EV3209DJ-00A BILL OF MATERIALS

Qty Ref Value Description Package Manufacturer Manufacturer P/N

1 C1 10μF Ceramic Cap., 10V, X5R 1210 TDK

C3225X5R1A106K

1 C3 4.7μF Ceramic Cap., 25V, X7R 1210 TDK

C3225X7R1E475M

1 C2 100pF Ceramic Cap., 50V, COG 0603 TDK

C16-8COG1H101J

1 L1 22μH 22μH, 0.49A, SMD SMD TDK

VLCF4018-220MR49-2

1 D1 B0530W Schottky Diode 30V,0.5A SOD-123 Diodes Inc B0530W

1 R1 100k Film Res., 5% 0603 Royalohm 0603J0104T5E

1 R2 499k Film Res., 1% 0603 Yageo RC0603FR-07499KL

1 R3 26.1k Film Res., 1% 0603 Yageo

RC0603FR-0726K1L

1 R4 45.3k Film Res., 1% 0603 Yageo

RC0603FR-0745K3L

1 U1 MP3209DJ

Step-Up Converter SOT23-5 MPS MP3209DJ-R16

EV3209DJ-00A – 1.3MHz 350MA BOOST CONVERTER

EV3209DJ-00A Rev. 1.3 www.MonolithicPower.com 3

12/25/2013 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

PRINTED CIRCUIT BOARD LAYOUT

Figure 1—Top Layer Figure 2—Bottom Layer

EV3209DJ-00A – 1.3MHz 350MA BOOST CONVERTER

NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.

Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS

products into any application. MPS will not assume any legal responsibility for any said applications.

EV3209DJ-00A Rev. 1.3 www.MonolithicPower.com 4

12/25/2013 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

QUICK START GUIDE

The output voltage of this board is set to 15V. The board layout accommodates most commonly used

inductors and output capacitors.

1. Preset Power Supply to 2.5V ≤VIN ≤6V.

2. Turn Power Supply off.

3. Connect Power Supply terminals to:

Positive (+): IN

Negative (–): GND

4. Connect Load to:

Positive (+): OUT

Negative (–): GND

5. Turn Power Supply on after making connections.

6. The MP3209 is enabled on the evaluation board once VIN is applied. To disable the MP3209,

short EN to GND.

7. The output voltage VOUT can be changed by varying R4. Calculate the new value using the

fomula:

FBO

FB ×

⎟

⎠

⎞

⎜

⎝

⎛

−

Where VFB = 1.25V and R2 = 499kΩ

For example, for VOUT = 15V

1.25

R4 499k 45.3k

15 1.25

⎛⎞

×Ω= Ω

⎜⎟

−

⎝⎠

Therefore use a 45.3 kΩstandard 1% value.

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