ISL8014AIRZ Intersil, ISL8014AIRZ Datasheet

ISL8014AIRZ

Manufacturer Part Number

ISL8014AIRZ

Description

IC REG SYNC BUCK 4A 16QFN

Manufacturer

Intersil

Type

Step-Down (Buck), PFM/PWM - Current Moder

Datasheet

1.ISL8014AIRZ-T.pdf (15 pages)

Specifications of ISL8014AIRZ

Internal Switch(s)

Yes

Synchronous Rectifier

Yes

Number Of Outputs

Voltage - Output

0.8 V ~ 5.5 V

Current - Output

Frequency - Switching

1MHz

Voltage - Input

2.8 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Package / Case

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

ISL8014AIRZ

Manufacturer:

INTERSIL

Quantity:

8 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

ISL8014AIRZ

Manufacturer:

INTERSIL

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ISL8014AIRZ-T

Manufacturer:

INTERSIL

Quantity:

12 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

ISL8014AIRZ-T

Manufacturer:

INTERSILC

Quantity:

20 000

Company:

Amily Shenzhen XNWY Technology Co., Ltd

Part Number:

ISL8014AIRZ-T

Current page: 1 of 15
Download datasheet (2Mb)

4A Low Quiescent Current 1MHz High Efficiency

Synchronous Buck Regulator

ISL8014A

The ISL8014A is a high efficiency, monolithic,

synchronous step-down DC/DC converter that can

deliver up to 4A continuous output current from a 2.8V to

5.5V input supply. It uses a current control architecture

to deliver very low duty cycle operation at high frequency

with fast transient response and excellent loop stability.

The ISL8014A integrates a pair of low ON-resistance

P-Channel and N-Channel internal MOSFETs to maximize

efficiency and minimize external component count. The

100% duty-cycle operation allows less than 400mV

dropout voltage at 4A output current. High 1MHz

pulse-width modulation (PWM) switching frequency

allows the use of small external components and SYNC

input enables multiple ICs to synchronize out of phase to

reduce ripple and eliminate beat frequencies.

The ISL8014A can be configured for discontinuous or

forced continuous operation at light load. Forced

continuous operation reduces noise and RF interference

while discontinuous mode provides high efficiency by

reducing switching losses at light loads.

Fault protection is provided by internal hiccup mode

current limiting during short circuit and overcurrent

conditions, an output over voltage comparator and

over-temperature monitor circuit. A power good output

voltage monitor indicates when the output is in

regulation.

The ISL8014A is offered in a space saving 4x4 QFN lead

free package with exposed pad lead frames for low

thermal.

The ISL8014A offers a 1ms Power-Good (PG) timer at

power-up. When shutdown, ISL8014A discharges the

output capacitor. Other features include internal

soft-start, internal compensation, overcurrent protection,

and thermal shutdown.

The ISL8014A is offered in a 16 Ld 4mmx4mm QFN

package with 1mm maximum height. The complete

converter occupies less than 0.4in

December 4, 2009

FN7525.1

area.

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

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

Features

• High Efficiency Synchronous Buck Regulator with up

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

• 2.8V to 5.5V Supply Voltage

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

• 4A Output Current

• Pin Compatible to ISL8013A

• Start-up with Pre-Biased Output

• Internal 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

• Internal Current Mode Compensation

• Peak Current Limiting and Hiccup Mode Short Circuit

• Over-Temperature Protection

• Small 16 Ld 4mmx4mm QFN

• Pb-Free (RoHS Compliant)

Applications*

• DC/DC POL Modules

• µC/µP, FPGA and DSP Power

• Plug-in DC/DC Modules for Routers and Switchers

• Portable Instruments

• Test and Measurement Systems

• Li-ion Battery Powered Devices

• Small Form Factor (SFP) Modules

• Bar Code Readers

to 97% Efficiency

Protection

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

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

(see page 14)

Related parts for ISL8014AIRZ

ISL8014AIRZ Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners. (see page 14) Copyright Intersil Americas Inc. 2009. All Rights Reserved ...

Page 2

... Ordering Information PART NUMBER (Notes ISL8014AIRZ 80 14AIRZ NOTES: 1. Add “-T” suffix for tape and reel. Please refer to 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations) ...

Page 3

Typical Application INPUT 2. 22µF Block Diagram SOFT Soft START SHUTDOWN EN 0.8V BANDGAP 3pF VFB 6k 0.736V PG SGND 0.2V 3 ISL8014A VIN LX VDD PGND ISL8014A EN R1 VFB 100k PG SYNCH SGND ...

Page 4

... Thermal Resistance (Typical, Notes 4, 5)θ 4x4 QFN Package . . . . . . . Junction Temperature Range . . . . . . . . . . -55°C to +125°C Storage Temperature Range . . . . . . . . . . . -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = -40°C to +85° +25°C. Boldface limits apply over the operating temperature range, A ...

Page 5

Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and the typical specification are measured at the following conditions unless otherwise noted -40°C to +85°C. (Continued) PARAMETER SYMBOL LX P-Channel MOSFET ON-Resistance ...

Page 6

Typical Operating Performance 100 90 2.5V OUT-PWM 80 1.8V OUT-PWM 1. 0.0 0.5 1.0 1.5 2.0 2.5 OUTPUT LOAD (A) FIGURE 3. EFFICIENCY vs LOAD (1MHz 3.3 V 100 90 80 2.5V OUT-PWM 1.8V OUT-PWM 70 ...

Page 7

Typical Operating Performance 0.25 0.20 0.15 0.10 0.05 0 2.0 2.5 3.0 3.5 4.0 V (V) IN FIGURE 9. POWER DISSIPATION WITH NO LOAD vs V (PFM V = 1.8V) IN OUT 1.55 1.54 3.3V IN-PFM 1.53 1.52 1.51 1.50 ...

Page 8

Typical Operating Performance 1.830 1.820 4A LOAD PWM 1.810 1.800 1.790 1.780 1.770 1.760 1.750 2.0 2.5 3.0 3.5 4.0 INPUT VOLTAGE (V) FIGURE 15. OUTPUT VOLTAGE REGULATION vs VIN (PWM V = 1.8 ) OUT LX 2V/DIV V RIPPLE ...

Page 9

Typical Operating Performance LX 2V/DIV V OUT IL 1A/DIV FIGURE 21. MODE TRANSITION DCM TO CCM LX 2V/DIV V RIPPLE 50mV/DIV OUT IL 1A/DIV FIGURE 23. LOAD TRANSIENT (PFM) EN 5V/DIV V 0.5V/DIV OUT IL 1A/DIV PG 5V/DIV FIGURE 25. ...

Page 10

Typical Operating Performance EN 2V/DIV V 0.5V/DIV OUT IL 2A/DIV PG 5V/DIV FIGURE 27. SOFT-START AT FULL LOAD LX 2V/DIV SYNCH 2V/DIV V RIPPLE 20mV/DIV OUT IL 1A/DIV FIGURE 29. STEADY STATE OPERATION AT NO LOAD WITH FREQUENCY = 2MHz ...

Page 11

Typical Operating Performance IL 2A/DIV FIGURE 33. OUTPUT SHORT CIRCUIT 5.500 5.375 5.250 5.125 5.000 4.875 4.750 4.625 4.500 FIGURE 35. OUTPUT CURRENT LIMIT vs TEMPERATURE Theory of Operation The ISL8014A is a step-down switching regulator optimized for battery-powered handheld ...

Page 12

The voltage loop is internally compensated with the 27pF and 390kΩ RC network. The maximum EAMP voltage output is precisely clamped to 1.6V. V EAMP V CSA DUTY ...

Page 13

Short-Circuit Protection The short-circuit protection SCP comparator monitors the VFB pin voltage for output short-circuit protection. When the VFB is lower than 0.2V, the SCP comparator forces the PWM oscillator frequency to drop to 1/3 of the normal operation value. ...

Page 14

... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries ...

Page 15

Package Outline Drawing L16.4x4 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 6, 02/08 4.00 6 PIN 1 INDEX AREA 0.15 (4X) TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 15 ...

Related keywords

ISL8014AIRZ datasheet
ISL8014AIRZ data sheet
ISL8014AIRZ pdf datasheet
ISL8014AIRZ component
ISL8014AIRZ part
ISL8014AIRZ distributor
ISL8014AIRZ RoHS
ISL8014AIRZ datasheet download