EL7562CUZ-T7 Intersil, EL7562CUZ-T7 Datasheet

EL7562CUZ-T7

Manufacturer Part Number

EL7562CUZ-T7

Description

IC REG DC/DC STEP-DN 2A 16-QSOP

Manufacturer

Intersil

Type

Step-Down (Buck)r

Datasheet

1.EL7562CUZ.pdf (9 pages)

Specifications of EL7562CUZ-T7

Internal Switch(s)

Yes

Synchronous Rectifier

Yes

Number Of Outputs

Voltage - Output

1 ~ 3.8 V

Current - Output

Frequency - Switching

1MHz

Voltage - Input

3.5 ~ 5 V

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

16-QSOP

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Power - Output

Current page: 1 of 9
Download datasheet (163Kb)

Monolithic 2Amp DC-DC Step-Down

Regulator

The EL7562 is an integrated, synchronous step-down

regulator with output voltage adjustable from 1.0V to 3.8V. It

is capable of delivering 2A continuous current at up to 95%

efficiency. The EL7562 operates at a constant frequency

pulse width modulation (PWM) mode, making external

synchronization possible. Patented on-chip resistorless

current sensing enables current mode control, which

provides cycle-by-cycle current limiting, over-current

protection, and excellent step load response. The EL7562 is

available in a fused-lead 16 Ld QSOP package. With proper

external components, the whole converter fits into a less

than 0.5 in

small size make this EL7562 ideal for desktop and portable

applications.

The EL7562 is specified for operation over the 0°C to +70°C

temperature range.

Pinout

(4.5V- 5.5V)

Please refer to page 4 for 3.3V input Application Diagram

Manufactured under U.S. Patent No. 57,323,974

39Ω

100µF

0.1µF

area. The minimal external components and

0.1µF

270pF

(16 LD QSOP)

TOP VIEW

EL7562

SGND

COSC

VDD

PGND

VIN

PGND

VDRV

Data Sheet

VREF

VHI

0.1µF

1kΩ

0.1µF

2.37kΩ

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

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

100µF

(3.3V,

2A)

Features

• Integrated synchronous MOSFETs and current mode

• 2A continuous output current

• Up to 95% efficiency

• 3.3V or 5V nominal input voltage

• Adjustable output from 1V to 3.8V

• Cycle-by-cycle current limit

• Precision reference

• ±0.5% load and line regulation

• Adjustable switching frequency to 1MHz

• Oscillator synchronization possible

• Internal soft-start

• Over-temperature protection

• Under-voltage lockout

• 16 Ld QSOP package

• Pb-free plus anneal available (RoHS compliant)

Applications

• DSP, CPU core and IO supplies

• Logic/Bus supplies

• Portable equipment

• DC-DC converter modules

• GTL + Bus power supply

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.

EL7562CU

EL7562CU-T7

EL7562CU-T13

EL7562CUZ

(Note)

EL7562CUZ-T7

(Note)

EL7562CUZ-T13

(Note)

PART NUMBER

controller

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

May 1, 2006

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

7562CU

7562CUZ

MARKING

PART

TAPE &

REEL

13”

7”

16 Ld QSOP MDP0040

16 Ld QSOP

(Pb-free)

16 Ld QSOP

(Pb-free)

16 Ld QSOP

(Pb-free)

PACKAGE

EL7562

FN7295.1

MDP0040

DWG. #

PKG.

Related parts for EL7562CUZ-T7

EL7562CUZ-T7 Summary of contents

Page 1

... EL7562CU 10 EL7562CU-T7 9 EL7562CU-T13 EL7562CUZ (Note) EL7562CUZ-T7 (Note) EL7562CUZ-T13 (Note) 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 ...

Page 2

Absolute Maximum Ratings (T A Supply Voltage between and GND . . . . . . . . . . . . +6. Voltage . . . . . . . . . . ...

Page 3

Closed-Loop AC Electrical Specifications PARAMETER DESCRIPTION F Oscillator Initial Accuracy OSC t Minimum Oscillator Sync Width SYNC M Soft-start Slope SS t FET Break Before Make Delay BRM t High Side FET Minimum On Time LEB D Maximum Duty Cycle ...

Page 4

Application Diagram for 3.3V Input C 3 0.1µ 39Ω 100µF 0.1µ (3V-3.6V SGND PGND 270pF 2 COSC VREF 15 3 VDD PGND VDRV 13 5 PGND ...

Page 5

Typical Performance Curves Efficiency =5V IN 100 =1 0.1 1 LOAD CURRENT I Efficiency =3.3V O 100 V =4.5 IN ...

Page 6

Typical Performance Curves Oscillator Frequency vs Temperature 390 C =390p OSC 385 380 375 370 365 360 TEMPERATURE (°C) Switching Frequency vs C OSC 1400 1200 1000 800 600 400 200 0 0 200 ...

Page 7

Block Diagram Junction Temperature Controller Supply 39Ω VDD 5V 0.1µF EN SGND Applications Information Circuit Description General The EL7562 is a fixed frequency, current mode controlled DC-DC converter with integrated N-channel power MOSFETs and a high precision reference. The device ...

Page 8

The heart of the controller is an input direct summing comparator which sum voltage feedback, current feedback, slope compensation ramp and power tracking signals together. Slope compensation is required to prevent system instability that occurs in current-mode topologies operating at ...

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 ...

Related keywords

el7566
el7563
el7564cre
el7562cu
el7562
el7566drez
el7566airez
el7564crez
el7564cm
el7562cuz
el7564cmz
el7563cmz
EL7562CUZ-T7 datasheet
EL7562CUZ-T7 data sheet
EL7562CUZ-T7 pdf datasheet
EL7562CUZ-T7 component
EL7562CUZ-T7 part
EL7562CUZ-T7 distributor
EL7562CUZ-T7 RoHS
EL7562CUZ-T7 datasheet download