EL7534EVAL1 Intersil, EL7534EVAL1 Datasheet

EL7534EVAL1

Manufacturer Part Number

EL7534EVAL1

Description

EVALUATION BOARD FOR EL7534

Manufacturer

Intersil

Datasheets

1.EL7534IYZ.pdf (9 pages)

2.EL7534EVAL1.pdf (2 pages)

Specifications of EL7534EVAL1

Main Purpose

DC/DC, Step Down

Outputs And Type

1, Non-Isolated

Voltage - Output

1.8V

Current - Output

600mA

Voltage - Input

2.5 ~ 5.5V

Regulator Topology

Buck

Board Type

Fully Populated

Utilized Ic / Part

EL7534

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Power - Output

Frequency - Switching

Current page: 1 of 9
Download datasheet (194Kb)

Monolithic 600mA Step-Down Regulator

The EL7534 is a synchronous, integrated FET 600mA 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 Li-Ion battery

source. The output can be externally set from 0.8V to V

with a resistive divider.

The EL7534 features PWM mode control. The operating

frequency is typically 1.5MHz. Additional features include a

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

short-circuit protection, and over-temperature protection.

The EL7534 is available in the 10 Ld MSOP package,

making the entire converter occupy less than 0.15 in

PCB area with components on one side only. Both packages

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

temperature range.

Ordering Information

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100% matte

tin plate termination finish, which are 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.

Pinout

EL7534IY

EL7534IY-T7

EL7534IY-T13

EL7534IYZ

(Note)

EL7534IYZ-T7

(Note)

EL7534IYZ-T13

(Note)

NUMBER

PART

BPAAA

BGAAA

MARKING

PART

EL7534 (10 LD MSOP)

SGND

PGND

VIN

VDD

TOP VIEW

TAPE &

REEL

13”

7”

POR

RSI

10 Ld MSOP

Data Sheet

10 Ld MSOP

(Pb-free)

10 Ld MSOP

(Pb-free)

PACKAGE

MDP0043

DWG. #

PKG.

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

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

Features

• Less than 0.15 in

• Components on one side of PCB

• Max height 1.1 mm MSOP10

• 100ms Power-On-Reset output (POR)

• Internally-compensated voltage mode controller

• Up to 94% efficiency

• <1µA shut-down current

• Overcurrent and over-temperature protection

• Pb-free plus anneal available (RoHS compliant)

Applications

• PDA and pocket PC computers

• Bar code readers

• Cellular phones

• Portable test equipment

• Li-Ion battery powered devices

• Small form factor (SFP) modules

Typical Application Diagram

600mA converter

10µF

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

July 12, 2006

(2.5V to 5.5V)

100kΩ

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

0.1µF

100Ω

* V

(0.97 cm

= 0.8V * (1 + R

VIN

VDD

POR

RSI

PGND

SGND

TOP VIEW

EL7534

) footprint for the complete

/ R

)

100kΩ

124kΩ

1.8µH

10µF

(1.8V @ 600mA)

EL7534

FN7431.8

470pF

Related parts for EL7534EVAL1

EL7534EVAL1 Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2004, 2005, 2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ...

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

Performance Curves and Waveforms All waveforms are taken 3.3V otherwise noted. V =5V IN 100 V =3. =1. 200 I (mA) O ...

Page 5

Performance Curves and Waveforms All waveforms are taken 3.3V otherwise noted. 0.5ms/DIV FIGURE 7. START-UP 1 50ms/DIV FIGURE 9. POR FUNCTION 5 EL7534 (Continued) = 1.8V 600mA with component values shown on ...

Page 6

Performance Curves and Waveforms All waveforms are taken 3.3V otherwise noted. JEDEC JESD51-3 LOW EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 0.6 0.5 0.4 0.3 0.2 0 AMBIENT TEMPERATURE (°C) ...

Page 7

Applications Information Product Description The EL7534 is a synchronous, integrated FET 600mA step- down regulator which operates from an input of 2.5V to 6V. The output voltage is user-adjustable with a pair of external resistors. The internally-compensated controller makes it ...

Page 8

The RMS current present at the input capacitor is decided by the following formula: × × ----------------------------------------------- - INRMS This is about half of the ...

Page 9

... 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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