ISL8013AEVAL2Z Intersil, ISL8013AEVAL2Z Datasheet

ISL8013AEVAL2Z

Manufacturer Part Number

ISL8013AEVAL2Z

Description

EVAL BOARD 2 FOR ISL8013A

Manufacturer

Intersil

Datasheets

1.ISL8013EVAL2Z.pdf (6 pages)

2.ISL8013AIRZ-T.pdf (17 pages)

Specifications of ISL8013AEVAL2Z

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 6
Download datasheet (255Kb)

ISL8013AEVAL2Z: 3A Low Quiescent Current 1MHz

High Efficiency Synchronous Buck Regulator

Description

The ISL8013AEVAL2Z kit is intended for use by

individuals with requirements for Point-of-Load

applications sourcing from 2.7V to 5.5V. The

ISL8013AEVAL2Z evaluation board is used to

demonstrate the performance of the ISL8013A low

quiescent current mode converter.

The ISL8013A is offered in a 4mmx4mm 16 Ld QFN

package with 1mm maximum height. The complete

converter occupies less than 0.4in

is pin-to-pin compatible with the ISL8013A.

Key Features

• High Efficiency Synchronous Buck Regulator with up

• Power-Good (PG) Output with 1ms Delay

• 2.7V to 5.5V Supply Voltage

• 3% Output Accuracy Over-Temperature/Load/Line

• 3A Guaranteed Output Current

• Start-up with Pre-biased Output

• Internal Digital Soft-Start - 1ms

• Soft-Stop Output Discharge During Disabled

• 35µA Quiescent Supply Current in PFM Mode

• Selectable Forced PWM Mode and PFM Mode

• External Synchronization up to 4MHz

• Less than 1µA Logic Controlled Shutdown Current

• 100% Maximum Duty Cycle for Lowest Dropout

• Internal Current Mode Compensation

• Peak Current Limiting and Hiccup Mode Short Circuit

• Over-Temperature Protection

Recommended Equipment

The following materials are recommended to perform

testing:

• 0V to 10V Power Supply with at least 5A source

• Electronic Loads capable of sinking current up to 5A

• Digital Multimeters (DMMs)

• 100MHz quad-trace oscilloscope

• Signal generator

December 16, 2009

AN1365.3

to 95% Efficiency

Protection

current capability or 5V battery

area. The ISL8014A

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

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

Application Note 1365

Quick Setup Guide

Evaluating the Other Output Voltage

The ISL8013AEVAL2Z kit output is preset to 1.8V;

however, output voltages can be adjusted from 0.8V to

3.3V using Equations 1 and 2:

Let’s set R

Note: If desired output is 0.8V, then short R

Mode Control

The ISL8013A has a SKIP pin that controls the operation

mode. When the SKIP pin is driven to low or shorted to

ground, the regulator operates in a PFM mode. Set SKIP

pin high forced PWM mode. The controller remains in the

fixed PWM frequency at light load instead of entering the

skip mode. In an application where a situation requires

the ISL8013A regulator to sink more than 2A valley

inductor current, it is recommended to operate in PFM to

avoid any possible over stress.

1. Ensure that the circuit is correctly connected to the

2. Connect the bias supply to VIN. Plus terminal to P4

3. Verify that position is ON for SW1.

4. Turn on the power supply.

5. Verify the output voltage is 1.8V for V

OUT

SW1

SW2

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

supply and loads prior to applying any power.

(VIN) and negative return to P5 (GND).

------------------------------ -

⎛

⎝

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

--------------- -

0.8

OUT

0.8 1

(

⎛

⎜

⎝

⎞

⎠

)

= 124kΩ

–

ENABLE

TABLE 1. SWITCH 1 SETTINGS

SKIP

------ -

PWM

OFF

PFM

⎞

⎟

⎠

Disable V

Enable V

Fixed PWM frequency at light load

Force continuous mode

ON/OFF CONTROL

OUT

FUNCTION

OUT

and open

(EQ. 1)

(EQ. 2)

Related parts for ISL8013AEVAL2Z

ISL8013AEVAL2Z Summary of contents

Page 1

... Verify that position is ON for SW1. 4. Turn on the power supply. 5. Verify the output voltage is 1.8V for V area. The ISL8014A Evaluating the Other Output Voltage The ISL8013AEVAL2Z kit output is preset to 1.8V; however, output voltages can be adjusted from 0.8V to 3.3V using Equations 1 and 2: V 0.8 1 ...

Page 2

... ISL8013AEVAL2Z Schematic 1 VIN R10 22µF 22µ OPEN VIN 2 R4 100k NOTE: Pin connect pin which can tie to VIN, SGND Application Note 1365 VIN PGND 11 2 VIN PGND VDD ISL8013AIRZ SGND 4 9 SYNCH SGND SYNCH VIN 2 R6 100k SYNCH SW2 2N7002 R9 1 OPEN ...

Page 3

... ISL8013AEVAL2Z Bill of Materials REFERENCE PART NUMBER QTY DESIGNATOR ISL8013AEVAL2Z 1 H1045-00470-50V5-T 1 H1045-DNP 0 H1065-00226-6R3V10-T 4 C1, C2, C5, C6 CAP, SMD, 1206, 22µF, 6.3V, DR73-1R5-R 1 131-4353-00 2 J1, J2 1514-2 4 P4, P5, P7, P8 CONN-TURRET, TERMINAL 5002 3 P2, P3, P6 LTST-C170CKT 1 ISL8013AIRZ 1 2N7002-7-F-T 1 H2511-00R00-1/10W-T 1 H2511-01003-1/10W1-T 4 R2, R4, R6, R7 RES, SMD, 0603, 100k, 1/10W, ...

Page 4

... ISL8013AEVAL2Z Board Layout 4 Application Note 1365 ISL8013AEVAL2Z FIGURE 1. TOP COMPONENTS FIGURE 2. TOP LAYER ETCH AN1365.3 December 16, 2009 ...

Page 5

... ISL8013AEVAL2Z Board Layout 5 Application Note 1365 (Continued) FIGURE 3. 2ND LAYER ETCH FIGURE 4. 3RD LAYER ETCH AN1365.3 December 16, 2009 ...

Page 6

... ISL8013AEVAL2Z Board Layout FIGURE 5. BOTTOM LAYER COMPONENTS (MIRRORS) Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the Application Note or Technical Brief is current before proceeding. For information regarding Intersil Corporation and its products, see www.intersil.com ...

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