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EL7512CY

High Frequency PWM Step-Up Regulator

Renesas Electronics 

EL7512

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 0.25in2

PCB space.

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

+85°C temperature range.

Pinout

EL7512

(10-PIN MSOP)

TOP VIEW

VIN

(2V-

9V)

C1

10µF

R3

100k

L1

D1

10µH

1 PGND

2 SGND

3 RT

4 EN

5 LBI

LX 10

VDD 9

FB 8

SS 7

LBO 6

C3

20nF

VOUT

R4

1k

C5

47µF

(12V up

to

400mA)

C4

0.1µF

R2

80.6k

R1

10k

C10

4.7nF

DATASHEET

FN7290

Rev 1.00

May 23, 2005

Features

• 90% efficiency

• Up to 600mA IOUT

• 5V < VOUT < 18V

• VIN > 2V

• 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

PART NUMBER PACKAGE

TAPE &

REEL PKG. DWG. #

EL7512CY

10-Pin MSOP

-

MDP0043

EL7512CY-T7

10-Pin MSOP

7”

MDP0043

EL7512CY-T13 10-Pin MSOP

13”

MDP0043

EL7512CYZ

10-Pin MSOP

-

(See Note)

(Pb-free)

MDP0043

EL7512CYZ-T7 10-Pin MSOP

7”

(See Note)

(Pb-free)

MDP0043

EL7512CYZ-T13 10-Pin MSOP

13”

(See Note)

(Pb-free)

MDP0043

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.

FN7290 Rev 1.00

May 23, 2005

Page 1 of 8

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