STEVAL-ISA049V1 STMicroelectronics, STEVAL-ISA049V1 Datasheet

STEVAL-ISA049V1

Manufacturer Part Number

STEVAL-ISA049V1

Description

BOARD EVAL BASED ON ST2S06A

Manufacturer

STMicroelectronics

Datasheets

1.ST2S06A33PQR.pdf (18 pages)

2.STEVAL-ISA049V1.pdf (4 pages)

Specifications of STEVAL-ISA049V1

Mfg Application Notes

ST2S06A33, ST2S06B AppNote

Main Purpose

DC/DC, Step Down

Outputs And Type

2, Non-Isolated

Current - Output

500mA

Voltage - Input

2.5 ~ 5.5V

Regulator Topology

Buck

Frequency - Switching

1.5MHz

Board Type

Fully Populated

Utilized Ic / Part

ST2S06A

Product

Power Management Modules

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Voltage - Output

Power - Output

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

497-8217

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

STEVAL-ISA049V1

Manufacturer:

STMicroelectronics

Quantity:

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Features

■

Description

This demonstration board is based on the

ST2S06A, a dual synchronous step-down DC-DC

converter optimized for powering low-voltage

digital cores in ODD applications and, generally,

used to replace the high current linear solution

when the power dissipation may cause a high

heating of the application environment.

It provides up to 0.5 A over an input voltage range

of 2.5 V to 5.5 V.

A high switching frequency (1.5 MHz) allows the

use of tiny surface-mount components. A resistor

divider to set the output voltage value, an inductor

and two capacitors are required for every channel.

In addition, a low output ripple is guaranteed by

the current mode PWM topology and by the use

of low ESR surface-mount ceramic capacitors.

The demonstration board is thermal protected

and current limited to prevent damage due to

accidental short-circuit.

July 2009

For further information contact your local STMicroelectronics sales office.

Step-down current mode PWM (1.5 MHz)

DC-DC converter

Fixed or adjustable output voltage from 0.8 V

2% DC output voltage tolerance

Synchronous rectification

Reset function

Internal soft start for start-up current limitation

and power ON delay of 50-100 µs

Typical efficiency: > 90%

0.5 A output current capability

Non-switching quiescent current: max 1 mA

over temperature range

Uses tiny capacitors and inductors

RoHS compliant

DS(on)

150 mΩ (typ.)

demonstration board based on the ST2S06A

Synchronous dual buck converter with reset

Doc ID 15976 Rev 1

STEVAL-ISA049V1

www.st.com

Data brief

1/4

Related parts for STEVAL-ISA049V1

STEVAL-ISA049V1 Summary of contents

Page 1

... The demonstration board is thermal protected and current limited to prevent damage due to accidental short-circuit. July 2009 For further information contact your local STMicroelectronics sales office. Synchronous dual buck converter with reset demonstration board based on the ST2S06A Doc ID 15976 Rev 1 STEVAL-ISA049V1 STEVAL-ISA049V1 Data brief 1/4 www.st.com 4 ...

Page 2

... Circuit schematic 1 Circuit schematic Figure 1. Schematic diagram 2/4 Doc ID 15976 Rev 1 STEVAL-ISA049V1 ...

Page 3

... STEVAL-ISA049V1 2 Revision history Table 1. Document revision history Date 01-Jul-2009 Revision 1 Initial release. Doc ID 15976 Rev 1 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 - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 15976 Rev 1 STEVAL-ISA049V1 ...

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