ISL6410A

Single Synchronous Buck Regulator with Integrated FET for WLAN Chipsets

OVERVIEW

The ISL6410, ISL6410A are synchronous current-mode PWM regulators designed to provide a total DC-DC solution for microcontrollers, microprocessors, CPLDs, FPGAs, core processors/BBP/MAC, and ASICs. The ISL6410 should be selected for applications using 3.3V ±10% as an input voltage and the ISL6410A in applications requiring 5.0V ±10%.

These synchronous current mode PWM regulators have integrated N- and P-Channel power MOSFETs and provide pre-set pin programmable outputs. Synchronous rectification with internal MOSFETs is used to achieve higher efficiency and a reduced external component count. The operating frequency of 750kHz typical allows the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 500kHz to 1MHz. A power good signal "PG" is generated when the output voltage falls outside the regulation limits. Other features include overcurrent protection and thermal overload shutdown. The ISL6410, ISL6410A are available in an MSOP 10 lead package.

KEY FEATURES

  • Fully Integrated Synchronous Buck Regulator
  • PWM Fixed Output Voltage Options
  • 1.8V, 1.5V or 1.2V with ISL6410 (VIN = 3.3V)
  • 3.3V, 1.8V or 1.2V with ISL6410A (VIN = 5.0V)
  • Continuous Output Current . . . . . . . . . . . . . . . . . . 600mA
  • Ultra-Compact DC-DC Converter Design
  • Stable with Small Ceramic Output Capacitors
  • High Conversion Efficiency
  • Extensive Circuit Protection and Monitoring features
  • Overvoltage, UVLO
  • Overcurrent
  • Thermal Shutdown
  • Available in MSOP and QFN packages
  • QFN Package:
  • Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline
  • Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile
  • Pb-Free Packaging Available

PARAMETRICS

Parameters
ISL6410A
Basic Information
Production Status
Mass Production
Topology
Buck
# of Outputs
1
Input Voltage Min (V)
4.5
Input Voltage Max (V)
5.5
Output Voltage Min (V)
1.2
Output Voltage Max (V)
3.3
Output Current Max (A)
0.6
IQ
2.3 mA
Switching Freq. (max) (MHz)
0.75
Switching Freq. (min) (MHz)
0.75
Max Duty Cycle (%)
See Datasheet
Qualification Level
Standard
Peak Efficiency (%)
90
POR
Yes
SYNCH Capability
Yes
Control Type
Current Mode
Switching Frequency Range (MHz)
0.75
Temperature Range
-40 to +85

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