ISL80015A

Compact Synchronous Buck Converter

Product Status: Mass Production

OVERVIEW

The ISL80020, ISL80020A, ISL80015 and ISL80015A are highly efficient, monolithic, synchronous step-down DC/DC converters that can deliver up to 2A of continuous output current from a 2.7V to 5.5V input supply. They use peak current mode control architecture to allow very low duty cycle operation. They operate at either 1MHz or 2MHz switching frequency, thereby providing superior transient response and allowing for the use of small inductors. They have excellent stability.

The ISL80020, ISL80020A, ISL80015 and ISL80015A integrate very low rDS(ON) MOSFETs in order to maximize efficiency. In addition, since the high-side MOSFET is a PMOS, the need for a Boot capacitor is eliminated, thereby reducing external component count. They can operate at 100% duty cycle (at 1MHz).

The device is configured in PWM (pulse width modulation) for fast transient response, which helps reduce the output noise and RF interference.

These devices are offered in a space saving 8 pin 2mmx2mm TDFN lead free package with exposed pad for improved thermal performance. The complete converter occupies less than 64mm2 area.

KEY FEATURES

  • VIN range 2.7V to 5.5V
  • IOUT maximum is 1.5A or 2A
  • Switching frequency is 1MHz or 2MHz
  • Overcurrent and short circuit protection
  • Over-temperature/thermal protection
  • Negative current protection
  • Power-good and enable
  • 100% duty cycle (1MHZ)
  • Internal soft-start and soft-stop
  • VIN undervoltage lockout and VOUT overvoltage protection
  • Up to 95% peak efficiency

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL80015A
Basic Information
Production Status
Mass Production
# of Outputs
1
Topology [Rail 1]
Buck
Input Voltage Min (V) [Rail 1]
2.7
Input Voltage Max (V) [Rail 1]
5.5
Output Voltage Min (V) [Rail 1]
0.6
Output Voltage Max (V) [Rail 1]
4
Output Current Max (A) [Rail 1]
1.5
IQ [Rail 1]
7 mA
Switching Freq. (max) (MHz)
2.36
Switching Freq. (min) (MHz)
1.64
Max Duty Cycle (%)
See Datasheet
Qualification Level
Standard
Peak Efficiency (%)
95
POR
Yes
BOM Total Footprint (mm2)
64
SYNCH Capability
No
Control Type
Current Mode
Switching Frequency Range (MHz)
1.640 MHz to 2.360MHz
Can Sample
YES
Temperature Range
-40 to +125

Design Resources and Tools

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Cross Reference

Intersil Cross Reference

Cross-reference based on data from industry sources. Support for the online tool has been discontinued, but the data is still available.

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Knowledge Base

Switching Regulators FAQs

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FAQs

Related Boards and Kits

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This webinar introduces the ISL85003 and ISL85003A synchronous buck (step-down) regulators with integrated high-side and low-side FETs.
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This webinar introduces the ISL78233, ISL78234 and ISL78235 automotive grade synchronous buck regulators for point-of-load applications.
3:02
Find out how the highly efficient, compact 12V synchronous buck regulator family can meet your power requirements for 12V rails.
9:50
This webinar introduces three buck-boost regulators in QFN packages, ISL91127IR, ISL91107IR and ISL9120IR, for battery-powered portable devices.
3:57
This webinar introduces the ISL85003 and ISL85003A synchronous buck (step-down) regulators with integrated high-side and low-side FETs.
11:01
This webinar introduces the ISL78233, ISL78234 and ISL78235 automotive grade synchronous buck regulators for point-of-load applications.
3:02
Find out how the highly efficient, compact 12V synchronous buck regulator family can meet your power requirements for 12V rails.
9:50
This webinar introduces three buck-boost regulators in QFN packages, ISL91127IR, ISL91107IR and ISL9120IR, for battery-powered portable devices.
3:57
This webinar introduces the ISL85003 and ISL85003A synchronous buck (step-down) regulators with integrated high-side and low-side FETs.
11:01
This webinar introduces the ISL78233, ISL78234 and ISL78235 automotive grade synchronous buck regulators for point-of-load applications.

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