STEVAL-ISA051V1 STMicroelectronics, STEVAL-ISA051V1 Datasheet

STEVAL-ISA051V1

Manufacturer Part Number

STEVAL-ISA051V1

Description

BOARD EVAL PM6670S DDR2/3

Manufacturer

STMicroelectronics

Type

DC/DC Switching Converters, Regulators & Controllersr

Datasheets

1.PM6670STR.pdf (54 pages)

2.STEVAL-ISA051V1.pdf (4 pages)

Specifications of STEVAL-ISA051V1

Design Resources

STEVAL-ISA051V1 Gerber Files STEVAL-ISA051V1 Schematic STEVAL-ISA051V1 Bill of Material

Main Purpose

Special Purpose DC/DC, DDR Memory Supply

Outputs And Type

4, Non-Isolated

Voltage - Output

1.5V, 1.8V

Voltage - Input

4.5 ~ 28V

Regulator Topology

Buck

Board Type

Fully Populated

Utilized Ic / Part

PM6670

Input Voltage

4.5 V to 28 V

Output Voltage

1.8 V, 1.5 V

Product

Power Management Modules

Silicon Manufacturer

ST Micro

Silicon Core Number

PM6670S

Kit Application Type

Power Management

Application Sub Type

DDR2/3 Memory Power Supply Controller

Kit Contents

Board

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Output

Power - Output

Frequency - Switching

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

For Use With/related Products

PM6670S

Other names

497-8411

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

STEVAL-ISA051V1

Manufacturer:

STMicroelectronics

Quantity:

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Features

■

Description

This evaluation board is based on the PM6670S

and represents a complete DDR2/3 power supply

regulator for portable applications designed to

meet JEDEC specifications. It integrates a

constant on-time (COT) buck controller, a 2 Apk

sink/source low drop-out regulator and a 15 mA

low noise buffered reference. The COT

architecture assures fast transient response

supporting both polymeric and ceramic output

capacitors. An embedded integrator control loop

compensates the DC voltage error due to the

output ripple. The 2 Apk sink/source linear

regulator provides the memory termination

voltage with fast load transient response.

February 2008

For further information contact your local STMicroelectronics sales office.

4.5 V to 28 V input voltage range

0.9 V, ±1% voltage reference

1.8 V (DDR2) or 1.5 V (DDR3) fixed output

voltages

0.9 V to 2.6 V adjustable output voltage

1.237 V ±1% reference voltage available

Very fast load transient response

Constant on-time loop control

No R

of the low-side MOSFETs

Negative current limit

Latched OVP, UVP and thermal shutdown

Fixed 3 ms soft-start

Selectable pulse-skipping at light load

Selectable no-audible (33 kHz) pulse-skip

mode

All ceramic output capacitors application

supported

Output voltage ripple compensation

SENSE

current sensing using the R

Complete DDR2/3 memory power supply controller

evaluation board based on the PM6670S

DS(on)

Rev 1

The device is fully compliant with system sleep

states S3 and S4/S5, providing LDO output high

impedance in suspend-to-RAM and tracking

discharge of all outputs in suspend-to-disk.

STEVAL-ISA051V1

Data Brief

www.st.com

1/4

Related parts for STEVAL-ISA051V1

STEVAL-ISA051V1 Summary of contents

Page 1

... For further information contact your local STMicroelectronics sales office. STEVAL-ISA051V1 evaluation board based on the PM6670S DS(on) The device is fully compliant with system sleep states S3 and S4/S5, providing LDO output high impedance in suspend-to-RAM and tracking discharge of all outputs in suspend-to-disk. Rev 1 Data Brief STEVAL-ISA051V1 www.st.com 1/4 4 ...

Page 2

... EN_1S8 2 37 ND_3 AGND 38 SET_PH1 SE 39 ND_2 AGND 40 AVCC 41 VTT_GND 42 VTT 43 LDO_IN 44 VTTREF 45 DSCG 46 VTT_FB 47 VCC 48 AVCC AV AVCC STEVAL-ISA051V1 _1S8 PG_1 24 _1S05 PG_1 23 _1S05_2 VIN_1 22 _1S05_1 VIN_1 21 5_2 VSW_1S05_ 5_1 VSW_1S05_ 19 _1S05_2 ND_1 SGND 18 _1S05_1 ND_1 SGND 17 _1S05 VFB_1 16 COMP_1S05 ...

Page 3

... STEVAL-ISA051V1 2 Revision history Table 1. Document revision history Date 11-Feb-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-ISA051V1 ...

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