STEVAL-ISA045V2 STMicroelectronics, STEVAL-ISA045V2 Datasheet

STEVAL-ISA045V2

Manufacturer Part Number

STEVAL-ISA045V2

Description

BOARD EVAL BASED ON ST1S09

Manufacturer

STMicroelectronics

Type

DC/DC Switching Converters, Regulators & Controllersr

Datasheets

1.ST1S09IPUR.pdf (18 pages)

2.STEVAL-ISA045V2.pdf (4 pages)

Specifications of STEVAL-ISA045V2

Design Resources

STEVAL-ISA045V2 Gerber Files STEVAL-ISA045V2 Schematic STEVAL-ISA045V2 Bill of Material

Main Purpose

DC/DC, Step Down

Outputs And Type

1, Non-Isolated

Voltage - Output

3.3V

Current - Output

Voltage - Input

2.7 ~ 5.5 V

Regulator Topology

Buck

Frequency - Switching

1.5MHz

Board Type

Fully Populated

Utilized Ic / Part

ST1S09

Input Voltage

2.7 V to 5.5 V

Output Voltage

3.3 V

Product

Power Management Modules

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Power - Output

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

For Use With/related Products

ST1S09

Other names

497-6371

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

STEVAL-ISA045V2

Manufacturer:

STMicroelectronics

Quantity:

Current page: 1 of 4
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Features

■

Description

This evaluation board, based on the ST1S09

family of synchronous step-down DC-DC

converters, is optimized for powering all low-

voltage applications and, generally, replaces high

current linear solutions when power dissipation

may cause high heating of the application

environment.

It provides up to 2 A over an input voltage range

of 2.7 V to 5.5 V.

A high 1.5 MHz switching frequency allows the

use of tiny surface-mount components and in

addition to the resistor divider to set the output

voltage value, an inductor and two capacitors are

required.

A low output ripple is guaranteed by the current

mode PWM topology and by the use of low ESR

surface-mount ceramic capacitors.

The device is thermally protected and current

limited to prevent damage due to accidental short-

circuit.

The ST1S09 family is available in the DFN6 3x3

package.

March 2008

For further information contact your local STMicroelectronics sales office.

Input voltage range: 2.7 V to 5.5 V

Output voltage: 3.3 V

Max I

High internal switching frequency: 1.5 MHz

Short-circuit protection

ST1S09 in the DFN6 3x3 package

out

: 2 A

2 A / 3.3 V high-efficiency synchronous buck converter

evaluation board based on the ST1S09

Rev 1

STEVAL-ISA045V2

Data Brief

www.st.com

1/4

Related parts for STEVAL-ISA045V2

STEVAL-ISA045V2 Summary of contents

Page 1

... The device is thermally protected and current limited to prevent damage due to accidental short- circuit. The ST1S09 family is available in the DFN6 3x3 package. March 2008 For further information contact your local STMicroelectronics sales office. STEVAL-ISA045V2 evaluation board based on the ST1S09 STEVAL-ISA045V2 Rev 1 Data Brief 1/4 www.st.com 4 ...

Page 2

... Circuit schematic 1 Circuit schematic Figure 1. Schematic Vin R3 C1 2/4 VIN_A 5 ST1S09 VIN_SW GND VF VFB STEVAL-ISA045V2 GND Vou out ...

Page 3

... STEVAL-ISA045V2 2 Revision history Table 1. Document revision history Date 03-Mar-2008 Revision 1 Initial release. Revision history Changes 3/4 ...

Page 4

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com STEVAL-ISA045V2 ...

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