EL7532EVAL1Z Intersil, EL7532EVAL1Z Datasheet

EL7532EVAL1Z

Manufacturer Part Number

EL7532EVAL1Z

Description

EVALUATION BOARD FOR EL7532

Manufacturer

Intersil

Datasheets

1.EL7532IYZ.pdf (8 pages)

2.EL7532EVAL1Z.pdf (2 pages)

Specifications of EL7532EVAL1Z

Main Purpose

DC/DC, Step Down

Outputs And Type

1, Non-Isolated

Voltage - Output

1.8V

Current - Output

Voltage - Input

2.5 ~ 5.5V

Regulator Topology

Buck

Frequency - Switching

1.5MHz

Board Type

Fully Populated

Utilized Ic / Part

EL7532

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Power - Output

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Monolithic 2A Step-Down Regulator

The EL7532 is a synchronous, integrated FET 2A step-down

regulator with internal compensation. It operates with an

input voltage range from 2.5V to 5.5V, which accommodates

supplies of 3.3V, 5V, or a single Li-Ion battery source. The

output can be externally set from 0.8V to V

divider.

The EL7532 features PWM mode control. The operating

frequency is typically 1.5MHz. Additional features include a

100ms Power-On-Reset output, <1µA shut-down current

and over-temperature protection.

The EL7532 is available in the 10-pin MSOP package,

making the entire converter occupy less than 0.18 in

PCB area with components on one side only. The package is

specified for operation over the full -40°C to +85°C

temperature range.

Ordering Information

Pinout

EL7532IY

EL7532IYZ

(Note)

*Add -T7 and -T13 for tape and reel. Please refer to TB347 for details

on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets; molding compounds/die attach materials

and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which

is RoHS compliant and compatible with both SnPb and Pb-free

soldering operations. Intersil Pb-free products are MSL classified at Pb-

free peak reflow temperatures that meet or exceed the Pb-free

requirements of IPC/JEDEC J STD-020.

PART NUMBER

BABAA

BAARA

MARKING

PART

(10 LD MSOP)

SGND

PGND

VIN

VDD

TOP VIEW

EL7532

RANGE (°C)

-40 to +85 10 Ld MSOP

TEMP.

POR

RSI

Data Sheet

(Pb-free)

PACKAGE

with a resistive

MDP0043

1-888-INTERSIL or 1-888-468-3774

DWG. #

PKG.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

*C4 is optional. Make sure that loop response are

measured in actual application.

Features

• 2A continuous current (from -40°C to +85°C)

• Less than 0.18 in

• Max height 1.1mm MSOP10

• 1.5MHz (typ.) switching frequency

• 100ms Power-On-Reset output (POR)

• Internally-compensated voltage mode controller

• Up to 94% efficiency

• <1µA shut-down current

• Over-temperature protection

• Pb-free available (RoHS compliant)

Applications

• PDA and pocket PC computers

• Bar code readers

• ADSL modems

• Portable instruments

• Li-Ion battery powered devices

• ASIC/FPGA/DSP supplies

• Set top boxes

Typical Application Schematic

= 0.8V * (1 + R

November 2, 2007

10µF

All other trademarks mentioned are the property of their respective owners.

(2.5V to 5.5V)

100kΩ

Intersil (and design) is a registered trademark of Intersil Americas Inc.

100kΩ

0.1µF

100Ω

/ R

)

footprint for the complete 2A converter

VIN

VDD

POR

RSI

PGND

SGND

EL7532

100kΩ

124kΩ

1.8µH

10µF

(1.8V @ 2A)

EL7532

FN7435.8

SIGNAL

GROUND

POWER

GROUND

470pF

Related parts for EL7532EVAL1Z

EL7532EVAL1Z Summary of contents

Page 1

... C 3 0.1µF EL7532 100kΩ POR 124kΩ 100kΩ RSI 100kΩ 6 100kΩ PGND SGND VO (1.8V @ 2A) SIGNAL GROUND / POWER GROUND | Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2004-2007. All Rights Reserved 470pF ...

Page 2

Absolute Maximum Ratings ( POR to SGND . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6. ...

Page 3

Pin Descriptions PIN NUMBER PIN NAME 1 SGND Negative supply for the controller stage 2 PGND Negative supply for the power stage 3 LX Inductor drive pin; high current digital output with average voltage equal to the regulator output voltage ...

Page 4

Typical Performance Curves 100 1. MAXIMUM EFFICIENCY, η 0.5 1.0 1.5 I (A) OUT FIGURE 1. EFFICIENCY vs I OUT 100 MAXIMUM EFFICIENCY, η = ...

Page 5

Typical Performance Curves 1.0 0.5 0 -0.5 -1.0 0 0.5 1.0 1.5 I (A) OUT FIGURE 7. LOAD REGULATION @ V 0.5ms/d FIGURE 9. START-UP 1 50ms/d FIGURE 11. POR FUNCTION 5 EL7532 (Continued) Δ 0.8V O ...

Page 6

Applications Information Product Description The EL7532 is a synchronous, integrated FET 2A step-down regulator which operates from an input of 2.5V to 5.5V. The output voltage is user-adjustable with a pair of external resistors. The internally-compensated controller makes it possible ...

Page 7

... Thermal Information section in spec table) can be improved by maximizing the copper area around the pins. A θ and +125°C 2-layer board. Refer to Intersil’s Tech Brief, TB379, for more information on thermal resistance. for the RMS load O Layout Considerations The layout is very important for the converter to function properly ...

Page 8

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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