EL7530IL INTERSIL [Intersil Corporation], EL7530IL Datasheet

EL7530IL

Manufacturer Part Number

EL7530IL

Description

Monolithic 600mA Step-Down Regulator with Low Quiescent Current

Manufacturer

INTERSIL [Intersil Corporation]

Datasheet

1.EL7530IL.pdf (11 pages)

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Monolithic 600mA Step-Down Regulator

with Low Quiescent Current

The EL7530 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 EL7530 features automatic PFM/PWM mode control, or

PWM mode only. The PWM frequency is typically 1.4MHz

and can be synchronized up to 12MHz. The typical no load

quiescent current is only 120µA. Additional features include

a Power-Good output, <1µA shut-down current, short-circuit

protection, and over-temperature protection.

The EL7530 is available in the 10-pin MSOP package,

making the the entire converter occupy less than 0.18n

PCB area with components on one side only. The 10-pin

MSOP package is 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.

EL7530IY

(BYAAA)

EL7530IY-T7

(BYAAA)

EL7530IY-T13

(BYAAA)

EL7530IYZ

(BAADA) (Note)

EL7530IYZ-T7

(BAADA) (Note)

EL7530IYZ-T13

(BAADA) (Note)

PART NUMBER

(BRAND)

10-Pin MSOP

PACKAGE

(Pb-free)

TAPE &

Data Sheet

REEL

13”

7”

MDP0043

DWG. #

PKG.

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

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

(1.8V@600mA)

* V

(2.5V-6V)

Features

• Less than 0.18in

• Components on one side of PCB

• Max height 1.1mm MSOP10

• Power-Good (PG) output

• Internally-compensated voltage mode controller

• Up to 95% efficiency

• <1µA shut-down current

• 120µA quiescent current

• Overcurrent and over-temperature protection

• External synchronizable up to 12MHz

• 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

Pinout and Typical Application Diagram

= 0.8V * (1 + R

converter

10µF

August 10, 2005

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

1.8µH

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

/ R

0.1µF

10µF

100Ω

)

footprint for the complete 600mA

TOP VIEW

EL7530

SGND

PGND

VIN

VDD

SYNC

100kΩ

EL7530

FN7434.3

100kΩ

124kΩ

100kΩ

470pF

SYNC

Related parts for EL7530IL

EL7530IL Summary of contents

Page 1

Data Sheet Monolithic 600mA Step-Down Regulator with Low Quiescent Current The EL7530 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 ...

Page 2

Absolute Maximum Ratings ( 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 at V =3.3V, V =1.8V otherwise noted. 100 V =3. =2. =1. =0.8V 60 ...

Page 5

Performance Curves and Waveforms All waveforms are taken at V =3.3V, V =1.8V otherwise noted. 0.1% 0.0% V =3. -0.1% -0.2% V =3.3V I =600mA IN O -0.3% -0.4% -0.5% -0.6% V =5V ...

Page 6

Performance Curves and Waveforms All waveforms are taken at V =3.3V, V =1.8V otherwise noted. 2µs/DIV FIGURE 12. PFM STEADY-STATE OPERATION WAVEFORM (I = 100mA) O 0.2µs/DIV FIGURE 14. EXTERNAL SYNCHRONIZATION TO 2MHz 100µs/DIV FIGURE 16. LOAD ...

Page 7

Performance Curves and Waveforms All waveforms are taken at V =3.3V, V =1.8V otherwise noted. 50µs/DIV FIGURE 18. PWM LOAD TRANSIENT RESPONSE (100mA TO 500mA) 1 0.6 0.2 0 -0.2 -0.6 0 200 400 600 800 I ...

Page 8

Performance Curves and Waveforms All waveforms are taken at V =3.3V, V =1.8V otherwise noted. JEDEC JESD51-3 LOW EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD 0.6 486mW 0.5 0.4 0.3 0.2 0 AMBIENT TEMPERATURE ...

Page 9

Applications Information Product Description The EL7530 is a synchronous, integrated FET 600mA 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. When the load is very ...

Page 10

Output Voltage Selection Users can set the output voltage of the variable version with a resister divider, which can be chosen based on the following formula:  R  2 × 0.8  ------ -  ...

Page 11

MSOP Package Outline Drawing NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at <http://www.intersil.com/design/packages/index.asp> All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 ...

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