3A High-Efficiency Synchronous Buck Regulator Evaluation Board
The ISL8013AEVAL2Z evaluation board is intended for use by individuals with requirements for point-of-load (POL) applications sourcing from 2.7V to 5.5V. This...
Overview
Description
The ISL8013A is a high efficiency, monolithic, synchronous step-down DC/DC converter that can deliver up to 3A 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 ISL8013A 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 300mV dropout voltage at 3A output current. High 1MHz pulse-width modulation (PWM) switching frequency allows for the use of small external components and the SYNC input enables multiple ICs to synchronize out-of-phase to reduce ripple and eliminate beat frequencies. The ISL8013A 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 overvoltage comparator and over-temperature monitor circuit. A power-good output voltage monitor indicates when the output is in regulation. The ISL8013A is offered in a space saving 4mmx4mm, Pb-free QFN package with exposed pad leadframes for low thermal resistance. The ISL8013A includes 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 300mV dropout voltage at 3A. The ISL8013A offers a 1ms Power-Good (PG) timer at power-up. When shut down, ISL8013A discharges the output capacitor. Other features include internal soft-start, internal compensation, overcurrent protection, and thermal shutdown. The ISL8013A is offered in a 4mmx4mm 16 Ld QFN package with 1mm maximum height. The complete converter occupies less than 0. 4in2 area.
Features
- High efficiency synchronous buck regulator with up to 97% efficiency
- Power-good (PG) output with a 1ms delay
- 2.8V to 5.5V supply voltage
- 3% output accuracy over temperature, load, line
- 3A output current
- Start-up with prebiased output
- Internal soft-start - 1ms
- Soft-stop output discharge during disable
- 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 protection
- Over-temperature protection
- Small 16 Ld 4mmx4mm QFN
- Pb-Free (RoHS compliant)
Comparison
Applications
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
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.13 MB | |
| Product Change Notice | PDF 156 KB | |
| Application Note | PDF 592 KB | |
| Product Change Notice | PDF 49 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
| Application Note | PDF 650 KB | |
| Application Note | PDF 387 KB | |
| Application Note | PDF 349 KB | |
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Design & Development
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| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | Renesas |
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Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
ISL8013AIRZ Active Samples Available
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|
QFN | Tube | 3 | 2.626 | Get Samples, |
ISL8013AIRZ-T Active Samples Available
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|
QFN | Reel | 3 | 2.568 | Get Samples, |
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