EL7512CY Intersil, EL7512CY Datasheet

EL7512CY

Manufacturer Part Number

EL7512CY

Description

IC REG PWM STEP UP 10-MSOP

Manufacturer

Intersil

Datasheet

1.EL7512CY.pdf (8 pages)

Specifications of EL7512CY

Pwm Type

Controller

Number Of Outputs

Frequency - Max

1.2MHz

Duty Cycle

90%

Voltage - Supply

2 V ~ 12 V

Buck

Boost

Yes

Flyback

Inverting

Doubler

Divider

Cuk

Isolated

Operating Temperature

-40°C ~ 85°C

Package / Case

10-MSOP, Micro10™, 10-uMAX, 10-uSOP

Frequency-max

1.2MHz

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

EL7512CY

Manufacturer:

Intersil

Quantity:

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

EL7512CY-T13

Manufacturer:

Intersil

Quantity:

500

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

EL7512CY-T7

Manufacturer:

ELANTEC

Quantity:

610

Company:

Meier Automation Equipment Co., Limited

Part Number:

EL7512CYZ

Manufacturer:

INTERSIL

Quantity:

20 000

Current page: 1 of 8
Download datasheet (250Kb)

High Frequency PWM Step-Up Regulator

The EL7512 is a high frequency, high efficiency step-up

DC:DC regulator operated at fixed frequency PWM mode.

With an integrated 1A MOSFET, it can deliver up to 600mA

output current at up to 90% efficiency. The adjustable

switching frequency is up to 1.2MHz, making it ideal for DSL

applications.

When shut down, it draws <3µA of current. This feature,

along with the minimum starting voltage of 2V, makes it

suitable for portable equipment powered by one lithium ion

or 3 to 4 NiMH cells.

The EL7512 is available in a 10-pin MSOP package, with

maximum height of 1.1mm. With proper external

components, the whole converter takes less than 0.25in

PCB space.

This device is specified for operation over the full -40°C to

+85°C temperature range.

Pinout

(2V-

9V)

10µF

100k

PGND

SGND

LBI

10µH

(10-PIN MSOP)

TOP VIEW

EL7512

VDD

LBO

20nF

Data Sheet

1kΩ

0.1µF

80.6k

10kΩ

47µF

4.7nF

1-888-INTERSIL or 1-888-352-6832

(12V up

400mA)

OUT

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

Features

• 90% efficiency

• Up to 600mA I

• 5V < V

• V

• Up to 1.2MHz adjustable frequency

• < 3µA shutdown current

• Adjustable soft-start

• Low battery detection

• Internal thermal protection

• 1.1mm max height 10-pin MSOP package

• Pb-Free available (RoHS compliant)

Applications

• 3V to 5V, 12V, and 18V converters

• 5V to 12V and 16V converters

• TFT-LCD

• DSL

• Portable equipment

• Desktop equipment

Ordering Information

NOTE: Intersil Pb-free 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.

EL7512CY

EL7512CY-T7

EL7512CY-T13

EL7512CYZ

(See Note)

EL7512CYZ-T7

(See Note)

EL7512CYZ-T13

(See Note)

PART NUMBER

> 2V

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

OUT

May 23, 2005

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

< 18V

OUT

10-Pin MSOP

PACKAGE

(Pb-free)

TAPE &

REEL

13”

7”

EL7512

PKG. DWG. #

FN7290.1

MDP0043

Related parts for EL7512CY

EL7512CY Summary of contents

Page 1

... EL7512CY-T7 EL7512CY-T13 EL7512CYZ (See Note) EL7512CYZ-T7 (See Note) EL7512CYZ-T13 (See Note) NOTE: Intersil Pb-free 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 ...

Page 2

Absolute Maximum Ratings (T A EN, LBI ...

Page 3

Block Diagram MAX_DUTY RT Reference 100kΩ Generator VREF VRAMP EN LBO LBI - + 210mV 3 EL7512 80.6k 1kΩ 10kΩ 4.7nF 0.1µ Thermal Shut-down PWM Comparator Start-up Oscillator SGND V OUT 15µF 47µF 10µF LX PWM 0.3Ω ...

Page 4

Typical Performance Curves Efficiency V =3.3V, V =12V IN O 100 =670kHz 1400 1200 1000 800 600 400 200 ...

Page 5

Typical Performance Curves 1.355 1.35 1.345 1.34 1.335 1.33 1.325 1. 3.6 V =10V DD 3.4 V =12V-18V O 3.2 3 2.8 2.6 2.4 2.2 2 ...

Page 6

Applications Information The EL7512 is a step-up regulator, operated at fixed frequency pulse-width-modulation (PWM) control. The input voltage is 2V-12V and output voltage is 5V-18V. The switching frequency (up to 1.2MHz) is decided by the resistor connected to RT pin. ...

Page 7

Output voltage ripple is the product of peak inductor current times the ESR of output capacitor. Low ESR capacitor used to reduce the output ripple. ...

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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